Dexamethasone injections - when they are needed, indications and precautions for injection. Dexamethasone, solution for injection (ampoules) What is dexamethasone in ampoules?


Instructions for use of Dexamethasone indicate that this agent is included in the list of vital drugs and is a strong synthetic glucocorticosteroid with immunosuppressive, antitoxic and anti-inflammatory properties.

The basis of the drug is a synthetic analogue of the hormone produced by the adrenal cortex. It is this substance that allows you to regulate carbohydrate, protein, lipid and water-electrolyte metabolism in the body.

Dexamethasone injections and eye drops - description of the drug

Dexamethasone is a potent hormonal agent, a corticosteroid (akin to fluoroprednisolone), produced synthetically. It has a wide range of therapeutic effects and exhibits the following properties:

  • anti-inflammatory;
  • antitoxic;
  • anti-shock;
  • immunosuppressive;
  • desensitizing.

Under the influence of the active substance, the sensitivity of β-adrenergic receptors (cell membrane proteins) to endogenous catecholamines increases.

Dexamethasone is directly involved in the regulation of metabolic processes in the body:

  1. Protein metabolism - helps to reduce the amount of globulins in the plasma, while enhancing protein catabolism in muscle tissue and accelerating the synthesis of albumin in the liver and kidneys.
  2. Carbohydrate metabolism - stimulates the production of insulin and promotes the development of hyperglycemia due to the fact that it accelerates the absorption of carbohydrates from the digestive tract and activates the flow of glucose from the liver into the blood.
  3. Lipid metabolism - accelerates the synthesis of fatty acids and triglycerides, promotes the redistribution of fats, which begin to be deposited in the abdomen and shoulder girdle.
  4. Water and electrolyte metabolism - retains water and sodium in the body, slows down the absorption of calcium from the gastrointestinal tract, provokes the "leaching" of calcium from the bones, and reduces bone mineralization.

The anti-inflammatory effect of the drug is achieved by reducing the permeability of small vessels, inhibiting the production of inflammatory mediators and the activity of eosinophils. The slowdown in the severity of allergic reactions occurs due to a decrease in the synthesis of histamine and other biologically active substances that provoke the body's immune response.

Dexamethasone inhibits the production of certain hormones by the pituitary gland, its active substances, penetrating into cells, activate the production of ribonucleic acids and normalize the functions of the nervous system. In diseases of the respiratory tract, the drug exhibits an anti-inflammatory effect, alleviates the severity of edema of the mucous membranes, reduces the viscosity of bronchial sputum, suppresses its production and facilitates breathing.

The anti-shock effect of the drug is based on its ability to increase blood pressure, the antitoxic effect is due to the acceleration of the elimination of decay products from the body.

Additionally, the medication prevents the formation of scar tissue, as it inhibits the formation of connective tissue reactions during the inflammatory process. The active substance easily penetrates the placental and blood-brain barrier, is metabolized in the liver, and excreted from the body by the kidneys.

Thus, the action of the drug is aimed at binding certain substances produced by the pituitary gland, participating in metabolic processes, affecting the central nervous system and the hematopoietic system. In fact, the effect of Dexamethasone extends to the entire body.

Good to know

This is a very serious drug that, if used improperly, can provoke unwanted complications and systemic reactions, but in the hands of a professional it helps to cope with many diseases and significantly improve the general condition of the patient.

Forms of release of Dexamethasone

The drug is produced in the following dosage forms:

  • dexamethasone tablets (0.5 mg);
  • Dexamethasone in ampoules 4mg / ml (solution for intravenous and intramuscular injection);
  • Oftan - Dexamethasone eye drops (0.1%);
  • Ophthalmic suspension Dexamethasone (0.1%).

Each form of the drug has its own indications for use and features of use, which the doctor must take into account when prescribing.

What is Dexamethasone prescribed for?

The oral form of the drug (tablets) is used in the following conditions:

  • endocrine diseases (hypothyroidism, thyroiditis, progression of ophthalmopathy associated with thyrotoxicosis);
  • autoimmune pathologies (hemolytic anemias, hematopoietic disorders, serum sickness);
  • insufficiency of the adrenal cortex (acute, primary, secondary), hyperplasia of the adrenal cortex (congenital);
  • ulcerative colitis (ulcerative colitis);
  • exacerbation of rheumatoid arthritis;
  • skin diseases (acute eczema, erythroderma, pemphigus);
  • connective tissue diseases;
  • swelling of the brain;
  • malignant tumors.

Dexamethasone injections are prescribed during the treatment of the following diseases:

  • severe infections (in combination with antibacterial agents);
  • shock states of various origins;
  • edema of the brain (due to traumatic brain injury, tumor, hemorrhage, radiation exposure, encephalitis or meningitis);
  • dangerous allergic reactions (Quincke's edema, bronchospasm, anaphylactic and pyrogenic reactions);
  • joint diseases;
  • spicy croup;
  • exacerbation of bronchial asthma, obstructive bronchitis, accompanied by bronchospasm;
  • severe dermatoses;
  • blood diseases (hemolytic anemia, agranulocytosis, acute lymphoblastic leukemia, thrombocytopenia);
  • insufficiency of the adrenal cortex in acute form;
  • oncological diseases (lymphoma and leukemia, acute leukemia in children).

Dexamethasone eye drops and injections of this drug in ophthalmic practice are used for a wide range of pathological conditions (allergic conjunctivitis, keratoconjunctivitis, keratitis, iritis, iridocyclitis, blepharitis, etc.), are prescribed to eliminate the inflammatory process after surgical interventions and are also used in eye injuries as immunosuppressive therapy after corneal transplant.

In addition, the drug in drops is instilled into the ear canal for allergic and inflammatory lesions of the ear.

Instructions for use

When taking Dexametosan tablets inside, the dosage and treatment regimen is selected by the doctor individually, taking into account the type of disease, the severity of the symptoms, the general condition of the patient and possible contraindications. In severe cases of the disease, at the initial stage of therapy, from 1 to 9 mg of the drug is prescribed per day, followed by a decrease in the daily dose to 0.5-3 mg at the stage of maintenance treatment.

The maximum dose of Dexamethasone should not exceed 15 mg / day. The daily dose of the drug is divided into three doses, it is best to take the medicine with meals. The duration of the course of treatment largely depends on the nature of the pathological process, the severity of the symptoms and how the sick person tolerates the drug. In some, especially severe cases, the duration of Dexamethasone therapy can be up to several months.

Dexamethasone intramuscularly and intravenously is prescribed for emergency conditions, as well as in those situations when taking the drug in tablets is not possible. Solution for injection is also used for intra-articular and peri-articular (periarticular) administration. The drug is injected into a vein slowly (jet or drip).

According to the instructions, the drug can be administered up to four times a day, at a dose of 4 to 20 mg. When preparing a solution for a dropper, an isotonic sodium chloride solution is used.

How much dexamethasone can be injected? The duration of the use of injections is usually no more than 4 days, after which they switch to taking the drug in tablet form. The peculiarity of therapy is that when acute conditions are relieved, Dexamethasone is used in higher doses, then, as it improves, the dosage is gradually reduced to a maintenance one, or the drug is completely canceled.

In ophthalmic practice, dexamethasone eye drops for the relief of acute conditions are instilled into the conjunctival sac every 2 hours (1-2 drops). Then, as the inflammatory process subsides, the interval between procedures is increased to 4-6 hours. The duration of treatment depends on the clinical picture of the disease and can last from 2 days to several weeks.

Dexamethasone in ampoules can be used for inhalation for acute inflammatory lesions of the upper respiratory tract (bronchitis, laryngitis). To do this, the drug should be diluted in saline in a ratio of 1: 6 and the ready-made solution (in a volume of 4 ml) should be used for inhalation.

Dexamethasone for children

Is Dexamethasone suitable for children and how to use the drug correctly in the treatment of young patients? The optimal dosage of tablets should be selected by the attending physician, taking into account the severity of the underlying disease, the individual characteristics of the child, his age and weight. The standard daily dosage is 2.5 to 10 mg, which is divided into several doses.

Inhalations with Dexamethasone for children are made at the rate of 0.5 ml of the drug per 3 ml of saline. The treatment usually lasts 7 days, the procedure is done three times a day.

During pregnancy

Dexamethasone in the form of tablets and drops during pregnancy and lactation is prohibited for use. If during breastfeeding there is a need for treatment with Dexamethasone, the child is transferred to artificial mixtures.

Dexamethasone injections during pregnancy are done only for health reasons. For example, a drug can be prescribed when the immune system begins to perceive the embryo as a foreign body. Dexamethasone suppresses immune activity, which allows you to eliminate the threat of miscarriage and maintain pregnancy.

Contraindications

With a short-term use of the drug for vital signs, the only limitation is the individual intolerance to dexamethasone or other components of the drug. In children, the hormonal agent should be used only according to indications and under the supervision of the attending physician.

Contraindications to the appointment of Dexamethasone injections are the following conditions:

Intra-articular injections are prohibited in case of joint instability, the presence of foci of infection in the joints and periarticular tissues, manifestations of osteoporosis, bleeding, previously performed arthroplasty.

In ophthalmology, Dexamethasone in the form of drops cannot be used for glaucoma, trachoma, corneal injuries, viral, fungal or tuberculous eye infections. It is forbidden to instill the drug in the ear canal if the tympanic membrane is damaged.

For the entire period of use of Dexamethasone, it is necessary to refuse to take alcohol, since the combination of a hormonal agent with ethanol can provoke dangerous unpredictable consequences.

Adverse reactions

Dexamethasone is well tolerated by patients, but, like many hormonal agents, it can cause systemic adverse reactions. Their severity and frequency largely depend on the dosage and duration of the drug. In medical practice, the following side effects from the use of Dexamethasone are described:

From the side of the cardiovascular system - arrhythmias, slowing heartbeat (bradycardia), up to cardiac arrest, development or exacerbation of heart failure, increased blood pressure. In patients with myocardial infarction (acute and subacute), the spread of foci of necrosis is possible, which can lead to rupture of the heart muscle.

From the gastrointestinal tract - impaired appetite and digestive processes, nausea, vomiting, flatulence, symptoms of pancreatitis, the formation of ulcers in the stomach and duodenum, perforation of the digestive system and internal bleeding.

Endocrine system - exacerbation of diabetes mellitus, increased pressure, pituitary obesity, suppression of the adrenal cortex, muscle weakness, painful menstruation, delayed sexual development in adolescents. Disorders of metabolic processes, sodium fluid retention leading to peripheral edema, weight gain, increased weakness and fatigue are often noted.

Nervous system - increased intracranial pressure, increased nervousness, anxiety combined with headaches and dizziness, disorientation in space, depression, insomnia. In severe cases, convulsions, hallucinations, manifestations of paranoia or manic-depressive psychosis are possible.

Musculoskeletal system - growth retardation in children, osteoporosis leading to pathological bone fractures, tendon rupture, muscle atrophy.

On the part of the skin, there is a slow healing of wounds, the appearance of stretch marks, acne, hyperpigmentation, thinning of the skin. Allergic reactions are possible, accompanied by itching, rashes, in rare cases such a severe reaction as anaphylactic shock occurs.

Local reactions include a burning sensation and pain in the area of \u200b\u200badministration of the drug, redness of the skin. Sometimes at the injection site, scarring, necrosis of surrounding tissues, and atrophy of subcutaneous tissue are noted.

Analogs

Dexamethasone has quite a few structural analogs containing the same active ingredient. These include:

  • Dexaven;
  • Dexazon;
  • Dexamed;
  • Dexafar;
  • Dexamethasone-Nycomed;
  • Dexamethasone-Ferein;
  • Fortecortin, etc.

Price

Dexamethasone is available without a prescription. Average prices for a drug in a pharmacy chain:

  • Dexamethasone tablets 0.5 mg (10 pcs) - from 38 rubles;
  • Dexamethasone solution in ampoules 4 mg / ml (25 ampoules) - from 180 rubles;
  • Dexamethasone eye drops - from 80 rubles.

Dexamethasone is inexpensive, but that doesn't mean you need to self-medicate. It should be understood that this is a powerful hormonal agent with many side effects that can only be used as directed and under the supervision of a physician.

Catad_pgroup Systemic corticosteroids

Catad_pgroup Preparations for ophthalmology

Dexamethasone for injection - instructions for use

INSTRUCTIONS for medical use of the drug

The name of the medicinal product:

Trade name of the drug:

Dexamethasone

International non-proprietary name:

dexamethasone

Dosage form:

injection

Composition

Active substance:
Dexamethasone sodium phosphate (dexamethasone phosphate disodium salt) in terms of 100% substance - 4.0 mg

Excipients:
glycerol (distilled glycerin) - 22.5 mg
disodium edetate (Trilon B) - 0.1 mg
sodium hydrogen phosphate dodecahydrate (sodium phosphate disubstituted 12-aqueous) - 0.8 mg
water for injection - up to 1 ml

Pharmacotherapeutic group:

glucocorticosteroid

ATX code:

Н02АВ02

Description:

transparent colorless or light yellow liquid.

pharmachologic effect

Synthetic glucocorticosteroid is a methylated derivative of fluoroprednisolone. It has anti-inflammatory, anti-allergic, desensitizing, anti-shock, anti-toxic and immunosuppressive effects.

Interacts with specific cytoplasmic receptors and forms a complex that penetrates the cell nucleus and stimulates the synthesis of mRNA; the latter induces the formation of proteins, incl. lipocortin mediating cellular effects. Lipocortin inhibits phospholipase A2, inhibits the release of arachidonic acid and inhibits the biosynthesis of endoperoxides, prostaglandins, leukotrienes, which promote inflammation, allergies, and others.

Protein metabolism: reduces the amount of protein in the plasma (due to globulins) with an increase in the albumin / globulin ratio, increases the synthesis of albumin in the liver and kidneys; enhances protein catabolism in muscle tissue.

Lipid metabolism: increases the synthesis of higher fatty acids and triglycerides, redistributes fat (fat accumulation mainly in the shoulder girdle, face, abdomen), leads to the development of hypercholesterolemia.

Carbohydrate metabolism: increases the absorption of carbohydrates from the gastrointestinal tract; increases the activity of glucose-6-phosphatase, leading to an increase in the flow of glucose from the liver into the blood; increases the activity of phosphoenolpyruvate carboxylase and the synthesis of aminotransferases, leading to the activation of gluconeogenesis.

Antagonistic action in relation to vitamin D: "washing out" of calcium from the bones and increasing its renal excretion.

The anti-inflammatory effect is associated with inhibition of the release of inflammatory mediators by eosinophils; by inducing the formation of lipocortins and reducing the number of mast cells that produce hyaluronic acid; with a decrease in capillary permeability; stabilization of cell membranes and membranes of organelles (especially lysosomal).

The anti-allergic effect is due to a decrease in the number of circulating eosinophils, which leads to a decrease in the release of immediate allergy mediators; reduces the effect of allergy mediators on effector cells.

The immunosuppressive effect is due to inhibition of the release of cytokines (interleukin 1 and interleukin 2, interferon gamma) from lymphocytes and macrophages.

Suppresses the synthesis and secretion of adrenocorticotropic hormone and, secondarily, the synthesis of endogenous glucocorticosteroids. A feature of the action is a significant inhibition of the function of the pituitary gland and an almost complete absence of mineralocorticosteroid activity.

Doses of 1-1.5 mg / day inhibit the function of the adrenal cortex; biological half-life - 32-72 hours (duration of inhibition of the hypothalamus-pituitary-adrenal cortex).

In terms of the strength of glucocorticosteroid activity, 0.5 mg of dexamethasone corresponds to approximately 3.5 mg of prednisone (or prednisolone), 15 mg of hydrocortisone or 17.5 mg of cortisone.

Pharmacokinetics
In the blood, it binds (60-70%) with a specific protein - a carrier - transcortin. Easily passes through the histohematological barriers (including the blood-brain barrier and placental barrier). It is excreted in small amounts in breast milk. It is metabolized in the liver (mainly by conjugation with glucuronic and sulfuric acids) to inactive metabolites. It is excreted by the kidneys.

Indications for use:

The drug is used for diseases requiring the introduction of a fast-acting glucocorticosteroid, as well as in cases where oral administration of the drug is not possible:

Endocrine diseases (acute insufficiency of the adrenal cortex, primary or secondary insufficiency of the adrenal cortex, congenital hyperplasia of the adrenal cortex, subacute thyroiditis);
- shock resistant to standard therapy; anaphylactic shock;
- cerebral edema (with a brain tumor, traumatic brain injury, neurosurgical intervention, cerebral hemorrhage, encephalitis, meningitis, radiation injury);
- asthmatic status; severe bronchospasm (exacerbation of bronchial asthma, chronic obstructive bronchitis);
- severe allergic reactions;
- rheumatic diseases;
- systemic connective tissue diseases;
- acute severe dermatoses;
- malignant diseases (palliative treatment of leukemia and lymphoma in adult patients; acute leukemia in children; hypercalcemia in patients with malignant tumors, if oral treatment is impossible);
- diagnostic study of adrenal hyperfunction;
- blood diseases (acute hemolytic anemia, agranulocytosis, idiopathic thrombocytopenic purpura in adults);
- severe infectious diseases (in combination with antibiotics);
- intra-articular and intra-synovial administration: arthritis of various etiologies, osteoarthritis, acute and subacute bursitis, acute tendovaginitis, epicondylitis, synovitis;
- local application (in the field of pathological education): keloids, discoid lupus erythematosus, annular granuloma.

Contraindications for use:

For short-term use for "vital" indications, the only contraindication is hypersensitivity.

For intra-articular administration: previous arthroplasty, pathological bleeding (endogenous or caused by the use of anticoagulants), intra-articular bone fracture, infectious (septic) inflammatory process in the joint and periarticular infections (including in history), as well as a general infectious disease, pronounced periarticular osteoporosis, no signs of inflammation in the joint (the so-called "dry" joint, for example, in osteoarthritis without synovitis), pronounced bone destruction and deformation of the joint (sharp narrowing of the joint space, ankylosis), joint instability as an outcome of arthritis, aseptic necrosis of the epiphyses of the bones forming the joint.

Post-vaccination period (a period lasting 8 weeks before and 2 weeks after vaccination), lymphadenitis after BCG vaccination. Immunodeficiency states (including AIDS or HIV infection).

Diseases of the gastrointestinal tract (peptic ulcer and 12 duodenal ulcer, esophagitis, gastritis, acute or latent peptic ulcer, recently created intestinal anastomosis, ulcerative colitis with the threat of perforation or abscess formation, diverticulitis).

Diseases of the cardiovascular system, incl. recent myocardial infarction (in patients with acute and subacute myocardial infarction, it is possible to spread the focus of necrosis, slow down the formation of scar tissue and, as a result, rupture of the heart muscle), decompensated chronic heart failure, arterial hypertension, hyperlipidemia.

Endocrine diseases - diabetes mellitus (including impaired carbohydrate tolerance), thyrotoxicosis, hypothyroidism, Itsenko-Cushing's disease.

Severe chronic renal and / or hepatic failure, nephrourolithiasis. Hypoalbuminemia and conditions predisposing to its occurrence.

Systemic osteoporosis, myasthenia gravis, acute psychosis, obesity (III-IV grade), poliomyelitis (except for the form of bulbar encephalitis), open and closed angle glaucoma, pregnancy, lactation.

For intra-articular administration: the general serious condition of the patient, the ineffectiveness (or short duration) of the action of 2 previous injections (taking into account the individual properties of the glucocorticosteroids used).

Method of administration and dosage:

Intra-articular, in the lesion focus - 0.2-6 mg, with a repetition of 1 every 3 days or 3 weeks.

Intramuscularly or intravenously - 0.5-9 mg / day.

For the treatment of cerebral edema - 10 mg in the first injection, then 4 mg intramuscularly every 6 hours until the symptoms disappear. The dose can be reduced after 2-4 days with gradual cancellation within 5-7 days after the elimination of cerebral edema. The maintenance dose is 2 mg 3 times / day.

For the treatment of shock - intravenously 20 mg in the first injection, then 3 mg / kg over 24 hours in the form of intravenous infusion or intravenous stream - from 2 to 6 mg / kg in the form of a single injection or 40 mg in the form of a single injection, given every 2 6 hours; possible intravenous administration of 1 mg / kg once. Shock therapy should be canceled as soon as the patient's condition stabilizes, the usual duration is no more than 2-3 days.

Allergic diseases - intramuscularly in the first injection of 4-8 mg. Further treatment is carried out with oral dosage forms.

In case of nausea and vomiting, during chemotherapy - intravenously 8-20 mg 5-15 minutes before the chemotherapy session. Further chemotherapy should be given with oral dosage forms.

For the treatment of respiratory distress syndrome of newborns - intramuscularly 4 injections of 5 mg every 12 hours for two days.

The maximum daily dose is 80 mg.

For children: for the treatment of adrenal insufficiency - intramuscularly at 23 μg / kg (0.67 mg / sq. M) every 3 days, or 7.8-12 μg / kg (0.23-0.34 mg / sq. M.) m / day), or 28-170 μg / kg (0.83-5 mg / sq. m) every 12-24 hours.

Precautions for use

Children who are in contact with patients with measles or chickenpox during the treatment period are prophylactically prescribed special immunoglobulins.
In children, during the growth period, glucocorticosteroids should be used only according to absolute indications and under the close supervision of a physician.
It should be borne in mind that in patients with hypothyroidism, the clearance of glucocorticosteroids decreases, and in patients with thyrotoxicosis, it increases.

Overdose

Symptoms:increased blood pressure, edema, peptic ulcer, hyperglycemia, impaired consciousness.
Treatment: symptomatic, no specific antidote.

Side effect

The frequency of development and the severity of side effects depend on the duration of use, the size of the dose used and the possibility of observing the circadian rhythm of the appointment.

From the side of metabolism: retention of sodium and water in the body; hypokalemia; hypokalemic alcolosis; negative nitrogen balance caused by increased protein catabolism, increased appetite, weight gain.

On the part of the cardiovascular system: a higher risk of thrombus formation (especially in immobilized patients), arrhythmias, increased blood pressure, development or worsening of chronic heart failure, myocardial dystrophy, steroid vasculitis.

From the musculoskeletal system:muscle weakness, steroid myopathy, decrease in muscle mass, osteoporosis, compression fractures of the vertebrae, aseptic necrosis of the femoral head and humerus, pathological fractures of the long bones.

From the digestive system:nausea, vomiting, erosive and ulcerative lesions of the gastrointestinal tract (which can cause perforations and bleeding), hepatomegaly, pancreatitis, ulcerative esophagitis.

Dermatological reactions: thinning and fragility of the skin, petechiae and subcutaneous hemorrhages, ecchymosis, striae, steroid acne, delayed wound healing, increased sweating.

From the central nervous system:increased fatigue, dizziness, headache, mental disorders, seizures and false symptoms of a brain tumor (increased intracranial pressure with congestive optic nerve head).

From the endocrine system:decreased glucose tolerance, "steroid" diabetes mellitus or manifestation of latent diabetes mellitus, suppression of adrenal function, Itsenko-Cushing's syndrome (moon face, pituitary obesity, hirsutism, increased blood pressure, dysmenorrhea, amenorrhea, myasthenia gravis, striae), delayed development in children.

From the side of the organs of vision: posterior subcapsular cataract, increased intraocular pressure, exophthalmos.

Side effects associated with immunosuppressive effects: more frequent occurrence of infections and aggravation of the severity of their course.

Others:allergic reactions.

Local reactions (at the injection site): hyperpigmentation and leukoderma, atrophy of the subcutaneous tissue and skin, aseptic abscess, hyperemia at the injection site, arthropathy.

Interaction with other medicinal products

Concomitant use with phenobarbital, rifampicin, phenytoin or ephedrine can accelerate the biotransformation of dexamethasone, thereby weakening its effect. Hormonal contraceptives enhance the effect of dexamethasone.

Simultaneous use with diuretics (especially "loop") can lead to increased excretion of potassium from the body.

With simultaneous administration with cardiac glycosides, the possibility of cardiac arrhythmias increases.

Dexamethasone weakens (less often enhances) the effect of coumarin derivatives, which requires a dose adjustment.

Dexamethasone enhances the side effects of nonsteroidal anti-inflammatory drugs, especially their effect on the gastrointestinal tract (increased risk of erosive and ulcerative lesions and bleeding from the gastrointestinal tract). In addition, it reduces the concentration of non-steroidal anti-inflammatory drugs in the blood serum and thus their effectiveness.

Carbonic anhydrase inhibitors: increase the risk of hypernatremia, edema, hypokalemia, osteoporosis.

Reduces the effectiveness of insulin and oral hypoglycemic drugs, antihypertensive drugs.

Antacids weaken the effect of dexamethasone.

In combination with paracetamol, it leads to an increased risk of hepatotoxicity, due to the induction of liver enzymes and the formation of a toxic metabolite of paracetamol.

The simultaneous use of androgens, steroid anabolic steroids contributes to the appearance of edema, hirsutism and acne; estrogens, oral contraceptives - leads to a decrease in clearance, an increase in the toxic effects of dexameatazone.

The risk of developing cataracts increases when antipsychotics (neuroleptics) and azathioprine are used against the background of dexamethasone.

The simultaneous appointment with M-anticholinergics (including antihistamines, tricyclic antidepressants) and nitrates promotes the development of glaucoma.

When used simultaneously with live antiviral vaccines and against the background of other types of immunizations, it increases the risk of virus activation and the development of infections.

Amphotericin B increases the risk of developing heart failure.

In combination with anticoagulants and thrombolytics, the risk of developing gastrointestinal ulcers and bleeding increases.

Reduces the concentration in plasma of salicylates (increases the excretion of salicylates).

Increases the metabolism of mexiletine, reducing its concentration in plasma.

Possibilities and features of the use of the drug during pregnancy

(especially in the first trimester), the drug can be used only when the expected therapeutic effect outweighs the potential risk to the fetus. With prolonged therapy during pregnancy, the possibility of fetal growth disorders is not excluded. If used at the end of pregnancy, there is a risk of atrophy of the adrenal cortex in the fetus, which may require replacement therapy in the newborn.

If it is necessary to carry out drug treatment during breastfeeding, then breastfeeding should be discontinued.

The effect of the drug on the ability to drive vehicles, mechanisms

During treatment, driving is not recommended, as well as engaging in activities that require quick psychomotor reactions and precise movements.

Release form:

Solution for injection 4 mg / ml.

1 ml in neutral glass ampoules.

10 ampoules together with instructions for use and a knife for opening ampoules or an ampoule scarifier are placed in a cardboard box.

5 ampoules in a blister made of polyvinyl chloride film.

1 or 2 blister packs, together with instructions for use and a knife for opening ampoules or an ampoule scarifier, are placed in a cardboard box.

When using ampoules with notches, rings and break points, it is allowed not to insert an ampoule scarifier or a knife for opening ampoules.

Shelf life:

2 years. Do not use after the expiration date printed on the package.

Storage conditions:

In a dark place at a temperature of 5 to 25 ° C.
Keep out of the reach of children.

Pharmacy dispensing conditions:

Dispensed by prescription.

Name, address of the manufacturer and address of the place of manufacture of the medicinal product / organization accepting claims

JSC DALKHIMFARM, 680001, Russian Federation, Khabarovsk Territory, Khabarovsk, st. Tashkent, 22.

Release form: Liquid dosage forms. Injection.



General characteristics. Composition:

Active substance: dexamethasone sodium phosphate;
1 ml of solution contains 4 mg of dexamethasone sodium phosphate calculated on dry matter;excipients: propylene glycol, glycerin, disodium edetate, phosphate buffer solution pH 7.5, methyl parahydroxybenzoate (E 218), propyl parahydroxybenzoate (E 216), water for injection. Basic physical and chemical properties: transparent colorless liquid.


Pharmacological properties:

Pharmacodynamics. Dexamethasone is a synthetic glucocorticoid drug, the molecule of which includes a fluorine atom. Has a pronounced anti-inflammatory, anti-allergic and desensitizing, anti-shock and immunosuppressive effect. Slightly retains sodium and water in the body.
The main effect on metabolism is associated with protein catabolism, an increase in gluconeogenesis in the liver and a decrease in glucose utilization by peripheral tissues.
Dexamethasone inhibits the synthesis and secretion of ACTH and, secondarily, the synthesis of endogenous
glucocorticoids. A feature of the drug is the lack of mineral corticoid activity.

Pharmacokinetics. Dexamethasone is a long-acting glucocorticoid.
Bioavailability is over 90%.
The plasma half-life is approximately 3 to 4.5 hours.
The biological half-life is 36 - 72 hours.
Plasma protein binding - up to 80%.
In the cerebrospinal fluid, the maximum concentration of dexamethasone is found 4 hours after intravenous administration (approximately 15-20% plasma concentration). Decline
the concentration of dexamethasone in the cerebrospinal fluid occurs very slowly (approximately 2/3 of
maximum concentration can be detected even after 24 hours).
Dexamethasone is metabolized in the liver much more slowly than cortisol, forming in
a small amount of 6-hydroxy- and 20-dihydroxymethasone. Almost 80% of the administered dose
excreted by the kidneys, mainly in the form of glucuronide, within 24 hours.

Indications for use:

Treatment of diseases amenable to systemic treatment with glucocorticoids (if necessary, as an additional treatment to the main one), if local treatment or oral administration is impossible or ineffective:
Rheumatic diseases.
Shock of various origins (anaphylactic, post-traumatic, postoperative, cardiogenic).
Edema of the brain (with tumor disease, traumatic brain injury, neurosurgical intervention, cerebral hemorrhage, encephalitis, meningitis, radiation injury).
Systemic connective tissue diseases.
Allergic diseases (allergic rhinitis, acute anaphylactic reaction to drugs).
Diseases of the respiratory tract (pulmonary fibrosis).
Inflammatory bowel disease (ulcerative ileitis / colitis).
Some (nephrotic syndrome).
Acute severe dermatoses (pemphigus common).
Diseases of the blood (immunohemolytic, thrombocytopenic purpura).
Substitution therapy: primary adrenal gland insufficiency (Addison's disease); insufficiency of the anterior lobe of the pituitary gland (Sheikhen's syndrome); ...


Important! Check out the treatment,

Method of administration and dosage:

Doses are determined individually, depending on the disease of a particular patient, the prescribed period of treatment, the tolerance of corticoids and the reaction of the body.
Solution for injection can be administered intravenously (by injection or infusion with 5% glucose solution or 0.9% sodium chloride solution), intramuscularly or topically (using intra-articular injection or injection into the lesion site on the skin or into soft tissue infiltration ). It must be remembered that with intra-articular administration, the drug cannot be injected into labile and infected joints, unstable joints (due to arthritis, necrosis), deformed joints (narrowing of the joint space, ankylosis). It should be remembered that with intra-articular administration, in addition to local effects (anti-inflammatory, antiallergic, antiexudative action), it is possible to add systemic effects (immunosuppressive and antiproliferative action).
The recommended average initial daily dose for intravenous or intramuscular administration varies from 0.5 to 9 mg per day, if necessary, the dose is increased. Initial doses of the drug should be used until a clinical response appears, and then the dose should be gradually reduced to the lowest clinically effective dose. If a clinical response was not achieved when using dexamethasone, then the administration of the drug should be stopped and switched to other glucocorticosteroids. When high doses are prescribed for several days, the drug is not abruptly canceled, but the dose is gradually reduced over the next few days or a longer period.
For intra-articular administration, doses from 0.4 mg to 4 mg are recommended. The dose depends on the size of the affected joint. Usually 2-4 mg is injected into large joints and 0.8-1 mg into small ones. The frequency of use usually ranges from one injection every 3-5 days to one injection every 2-3 weeks. Frequent intra-articular injection can damage the articular cartilage. Intra-articular injection can be done simultaneously in no more than 2 joints.
The dose of dexamethasone injected into the synovial bursa is usually 2-3 mg, the dose injected into the sheath of the tendons is 0.4-1 mg, the dose injected into the ganglia is 1 to 2 mg.
The dose of dexamethasone injected into the lesion is equivalent to the intra-articular dose. Dexamethasone can be administered in parallel to no more than two lesions.
Doses from 2 to 6 mg of dexamethasone are recommended for administration into soft tissues (near the suspension).
For the treatment of cerebral edema - 10 mg intravenously at the first injection, then 4 mg intramuscularly once for 6 hours until the symptoms disappear. The dose can be reduced after 2-4 days with gradual withdrawal within 5-7 days after the elimination of cerebral edema. When a therapeutic effect is achieved, it is recommended to switch from parenteral administration to oral administration of the drug.
For shock treatment - 20 mg intravenously at the first injection, then 3 mg / kg over 24 hours as a continuous intravenous infusion or 2-6 mg / kg as a single intravenous injection, or 40 mg initially, then repeated intravenous injections every 4 -6 hours while symptoms of shock are observed. Intravenous single administration of 1 mg / kg is also possible. Shock therapy should be canceled as soon as the patient's condition stabilizes, usually the treatment lasts no more than 2-3 days.
For allergic diseases - intramuscularly 4-8 mg at the first injection. Further treatment is carried out with oral medications.
Doses for children. The recommended dose for replacement therapy is 0.02 mg / kg body weight or 0.67 mg / m2 body surface area per day in three injections. For all other indications, the initial dose range is 0.02-0.3 mg / kg / day in 3-4 injections (0.6-9.0 mg / m2 body surface area / day).
A dose of 0.75 mg of dexamethasone is equivalent to a dose of 4 mg methylprednisolone and triamcinolone, or 5 mg prednisolone, or 20 mg hydrocortisone, or 25 mg cortisone, or 0.75 mg betamethasone.
Adverse reactions. From the endocrine system: increased appetite, weight gain, steroid diabetes, decreased tolerance to carbohydrates, hyperglycemia, suppression of the hypothalamic-pituitary-adrenal system, impaired secretion of sex hormones (menstrual disorders, amenorrhea, hirsutism, impotence), premature closure, growth retardation in newborns, children and adolescents, cortical paralysis in premature infants, Itsenck-Cushing's syndrome;
on the part of the immune system: increased risk of occurrence or exacerbation of fungal, viral or bacterial infections, decreased immune response, development of opportunistic infections, decreased reactivity to vaccinations and skin tests, delayed wound healing, regression of lymphoid tissue, leukocytosis;
from the central nervous system: dizziness, headache, affective disorders (irritability, euphoria, depression, mood lability, suicidal thoughts), psychotic reactions (including mania, hallucinations, psychosis and exacerbation of schizophrenia), anxiety, sleep disturbances, cognitive dysfunction, including - confusion and amnesia, as well as neuritis, neuropathy, paresthesia, hyperkinesia, convulsions. In children, the drug can cause paralysis of the cerebral cortex. The drug can cause physical dependence;
from the digestive system: dyspepsia, nausea, vomiting, bloating, peptic ulcer with numerous perforations and hemorrhages, perforation of the small and large intestines, ulcerative esophagitis, hemorrhagic pancreatitis, atony of the digestive tract, candidiasis;
from the liver and biliary tract: increased levels of liver enzymes, hepatomegaly;
on the part of metabolism: sodium and water retention, increased potassium excretion, hypokalemic alkalosis, negative nitrogen balance;
from the side of the organs of vision: increased intraocular pressure, glaucoma, papilloedema, posterior subcapsular cataract, thinning of the cornea or sclera, exophthalmos, retinopathy, exacerbation of ophthalmic viral or fungal diseases, retrolental fibroplasia;
on the part of the cardiovascular system: syncope, bradycardia, tachycardia, an attack of angina pectoris, an increase in the size of the heart, myocardial rupture as a complication of myocardial infarction, polytropic ventricular extrasystole, edema, arterial hypertension, increased intracranial and intraocular pressure, congestive heart failure;
from the blood system: purpura, eosinophilia, thrombocytopenia, non-thrombocytopenic purpura, increased risk of thrombosis, thrombophlebitis;
from the respiratory system: pulmonary edema, thromboembolism, bronchospasm;
dermatological reactions: increased sweating, acne, suppression of the regenerative and reparative functions of the skin, thinning of the skin, erythema, petechiae, stretch marks, skin atrophy, ecchymosis, telangiectasia, hyper- and hypopigmentation of the skin, sterile abscess, impaired distribution of subcutaneous tissue;
reactions at the injection site: redness and tingling of the skin, painless destruction of the joint, which symptomatically resembles neurogenic arthropathy (Charcot's joint);
from the musculoskeletal system: osteoporosis, fractures of tubular bones or ridges, avascular osteonecrosis, tendon ruptures, muscle weakness, muscle atrophy, proximal myopathy;
allergic reactions: hypersensitivity reactions, angioedema, urticaria, allergic dermatitis, anaphylactic shock.
Signs of glucocorticoid withdrawal syndrome.
In patients who have been treated with dexamethasone for a long time, during a too rapid dose reduction, a withdrawal syndrome may occur and, as a result, cases of adrenal insufficiency, arterial hypotension or death may occur.
In some cases, the signs of withdrawal may be similar to signs of worsening or recurrence of the disease for which the patient was being treated.
If severe adverse reactions occur, treatment should be discontinued.

Application features:

Application during pregnancy or lactation.
It can be used during pregnancy, especially in the first trimester, only for health reasons.
Breastfeeding is not allowed during drug treatment.
Children. Children are prescribed the drug only in absolute terms, intramuscularly at 0.01 - 0.02 mg / kg every 12 - 24 hours. During treatment with dexamethasone, close supervision of the growth and development of children is necessary.
Features of the application. During parenteral treatment with corticosteroids, hypersensitivity reactions can be observed in isolated cases, therefore, appropriate measures must be taken before starting treatment with dexamethasone, given the possibility (especially in patients with a history of allergic reactions to any other drugs) of allergic reactions.
In patients who have been treated with dexamethasone for a long time, upon discontinuation of treatment, a withdrawal syndrome may occur (without visible signs of adrenal insufficiency) of symptoms: fever, runny nose, conjunctival redness, drowsiness or irritability, pain in muscles and joints, weight loss, general weakness, convulsions. In this connection, the dose of dexamethasone should be reduced gradually. Sudden discontinuation of the drug can be fatal.
If the patient is under unusual stress (due to trauma, surgery, or serious illness) during therapy or during discontinuation of dexamethasone therapy, the dose should be increased or hydrocortisone or cortisone should be used.
Patients who have been using dexamethasone for a long time and are experiencing severe stress after stopping therapy should be updated with dexamethasone, since the induced adrenal insufficiency can continue for several months after stopping treatment.
Treatment with dexamethasone or natural glucocorticosteroids can mask symptoms of existing or new infection, as well as symptoms of intestinal perforation.
Dexamethasone may exacerbate latent and lung systemic fungal infections.
Patients with active pulmonary tuberculosis should receive dexamethasone (along with anti-tuberculosis drugs) only for rapid or disseminated pulmonary tuberculosis. Patients with inactive pulmonary tuberculosis who are being treated with dexamethasone, or patients who are responding to tuberculin, should receive chemotherapy and prophylaxis.
Caution and medical supervision are recommended for patients with hypertension, heart failure, tuberculosis, glaucoma, hepatic or renal failure, active peptic ulcer, recent intestinal anastomosis, and epilepsy. Particular care is required for patients during the first weeks after myocardial infarction, patients with thromboembolism, severe myasthenia gravis, hypothyroidism, psychosis or psychoneurosis, as well as elderly patients.
During treatment with dexamethasone, an exacerbation of diabetes mellitus or a transition from the latent phase to clinical manifestations of diabetes may occur.
With long-term treatment with dexamethasone, serum potassium levels should be monitored.
Vaccination with live vaccine is contraindicated during treatment with dexamethasone. Vaccination with a non-live viral or bacterial vaccine does not lead to the expected development of antibodies and does not give the expected protective effect.
Dexamethasone is not prescribed 8 weeks before vaccination and should not be started earlier than 2 weeks after vaccination.
Patients who are treated for a long time with high doses of dexamethasone and have never had measles should avoid contact with infected persons; in case of accidental contact, prophylactic treatment with immunoglobulin is recommended.
It is recommended to be careful in patients who are recovering from surgery or because dexamethasone can slow down wound healing and bone formation.
The effect of glucocorticosteroids is enhanced in patients with liver cirrhosis or hypothyroidism.
Intra-articular administration of dexamethasone can lead to local or systemic effects. Frequent use can cause damage to cartilage or bone.
Before intra-articular injection, the synovial fluid should be removed from the joint and examined (check for infection). Injection of corticosteroids into infected joints should be avoided. If joint infection develops after injection, appropriate antibiotic therapy should be initiated.
Patients need to avoid physical exertion on the affected joints until the inflammation is healed.
Injection of dexamethasone into unstable joints should be avoided.
Corticoids can interfere with the results of allergic skin tests.
Children and adolescents should only be treated with dexamethasone when clearly needed. During treatment with dexamethasone, careful monitoring of the growth and development of children and adolescents is necessary.
Patients with a violation of the water-electrolyte balance should be careful when taking dexamethasone, because medium and large doses of glucocorticosteroids can cause salt and water retention in the body, as well as increased potassium excretion. In these cases, restriction of salt intake and additional intake of potassium are indicated. All corticosteroids increase the process of calcium excretion, as a result of which the secretion of mineralocorticoids can be impaired. Therefore, an additional appointment of salt and / or mineralocorticoids is indicated. With the cancellation of long-term therapy with corticosteroids, the possible development of a withdrawal syndrome, accompanied by an increase in body temperature, pain in muscles and joints, and general malaise. These symptoms can appear in patients without signs of adrenal insufficiency.
Immunization with live vaccines is contraindicated in individuals who are using immunosuppressive doses of corticosteroids. In cases of immunization of such patients with inactivated viral or bacterial vaccines, the response of serum antibodies may be reduced.
In active forms of tuberculosis, the use of dexamethasone should be limited to cases of fulminant or disseminated forms of the disease, in which corticosteroids are used in parallel with specific therapy.
Patients with latent forms of tuberculosis or positive tuberculin reactions who are indicated for corticosteroids should be under constant medical supervision to avoid relapse.
Corticosteroids should be used with caution in patients with herpes simplex because their use can lead to corneal perforation. Long-term use of corticosteroids can lead to the development of posterior subcapsular, with possible damage to the optic nerve, as well as increase the risk of secondary viral or fungal eye infections.
The drug is contraindicated in patients in whom, with intra-articular administration of corticosteroids, pain increased significantly, accompanied by swelling and further limitation of joint mobility, fever and general malaise (these symptoms indicate the occurrence). If septic arthritis develops and the diagnosis is confirmed, appropriate antibiotic therapy should be prescribed. Direct injection of corticosteroids into the site of infection should be avoided. Any intra-articular fluid must be carefully examined to exclude a septic process. Corticosteroids cannot be injected into labile joints. Frequent intra-articular injections can injure the joint tissue. Excessive loads on damaged joints are contraindicated in patients until the inflammatory process disappears completely, even with the onset of symptomatic improvement.
The drug is prescribed with caution to infectious patients, especially with chickenpox and measles, because these diseases with the use of dexamethasone are in a more severe form. Therefore, persons who did not suffer from these diseases,
care should be taken to exclude infection as much as possible. In case of contact with patients, you should immediately consult a doctor.
The ability to influence the reaction rate when driving or operating other mechanisms. There is no data.

Interaction with other medicinal products:

The concomitant use of dexamethasone and nonsteroidal anti-inflammatory drugs increases the risk of gastrointestinal bleeding and ulceration.
The effectiveness of dexamethasone decreases if rifampicin, carbamazepine, phenobarbitone, phenytoin (diphenylhydantoin), primidone, ephedrine or aminoglutethimide are taken in parallel, therefore the dose of dexamethasone in such combinations must be increased.
The combined use of dexamethasone and drugs that inhibit CYP 3A4 enzymatic activity, such as ketoconazole, macrolide antibiotics, may cause an increase in the concentration of dexamethasone in serum and plasma.
Dexamethasone is a moderate inducer of CYP 3A4. Concomitant use with drugs that are metabolized by CYP 3A4, such as indinavir, erythromycin, may increase their clearance.
Ketoconazole can inhibit adrenal glucocorticoid synthesis. Thus, due to a decrease in the concentration of dexamethasone, adrenal insufficiency can be observed.
Dexamethasone reduces the therapeutic effect of drugs against diabetes mellitus, arterial hypertension, coumarin anticoagulants, praziquantel and natriuretics (therefore, the dose of these drugs should be increased).
Dexamethasone increases the activity of heparin, albendazole and potassium uretics (the dose of these drugs should be reduced if necessary).
Dexamethasone can change the effect of coumarin anticoagulants, therefore, when using this combination of drugs, the prothrombin time should be checked more often.
The concurrent use of dexamethasone and high doses of glucocorticosteroids or β2-adrenergic receptor agonists increases the risk of hypokalemia. In patients with hypokalemia, cardiac glycosides are more conducive to rhythm disturbances and are more toxic.
Glucocorticosteroids increase the renal clearance of salicylates, so it is sometimes difficult to obtain therapeutic serum salicylate concentrations. Caution should be exercised in patients who gradually reduce the dose of corticosteroid, since this may result in an increase in serum salicylates and intoxication.
If oral contraceptives are used concurrently, the half-life of glucocorticoids may increase, which will enhance their biological effect and may increase the risk of side effects.
The concomitant use of ritordine and dexamethasone is contraindicated as it can lead to pulmonary edema. It was reported about the death of a woman in labor during childbirth due to the development of this condition.
The simultaneous use of dexamethasone and thalidomide can cause toxic epidermal necrolysis.
With the simultaneous use of dexamethasone with amphotericin B and drugs that remove potassium from the body (diuretics), hypokalemia is observed, which can lead to heart failure.
The simultaneous use of dexamethasone with anticholinesterase drugs can lead to severe weakness in patients with myasthenia gravis.
Cholestyramine can increase creatinine clearance. The simultaneous use of cyclospoorine and corticosteroids leads to an increase in their activity, with their simultaneous use, seizures may occur.
Interactions with therapeutic benefits: concurrent administration of dexamethasone and metoclopramide, diphenhydramine, prochlorperazine, or 5-HT3 receptor antagonists (serotonin or 5-hydroxy-tryptamine receptor type 3, such as ondansetron or granisetron) are effective in preventing nausea and vomiting caused by chemotherapy with cisplatin, cyclophosphamide, methotrexate, fluorouracil.

Incompatibility.
The drug should not be mixed with other drugs, except for the following: 0.9% sodium chloride solution or 5% glucose solution.
When dexamethasone is mixed with chlorpromazine, diphenhydramine, doxapram, doxorubicin, daunorubicin, idarubicin, hydromorphone, ondansetron, pro-chlorperazine, galium nitrate and vancomycin, a precipitate is formed.
Approximately 16% dexamethasone is degraded in 2.5% glucose solution and 0.9% sodium chloride solution with amikacin.
Some drugs, such as lorazepam, must be mixed with dexa-methasone in glass vials rather than in plastic bags (the concentration of lorazepam drops to below 90% after 3-4 hours of storage in polyvinyl chloride bags at room temperature).
Some drugs, such as metapaminol, have a so-called "incompatibility, which develops slowly" - develops within a day when mixed with dexamethasone.
Dexamethasone with glycopyrolate: The residual solution has a pH of 6.4, which is outside the stability range.

Contraindications:

Hypersensitivity to the components of the drug.
Gastrointestinal ulcers.
Osteoporosis.
Severe (except for).
Viral infections (for example, chickenpox, herpes simplex of the eyes, herpes zoster (viremia phase), (with the exception of the bulbar-encephalitic form).
Lymphadenitis after BCG vaccination.
Systemic mycosis.
Closed-angle and open-angle glaucoma.

Overdose:

There are single reports of acute overdose or death due to acute overdose.
Overdose usually occurs only after several weeks of excessive doses. Overdose can cause most of the unwanted effects listed in the "Adverse Reactions" section, primarily Cushing's syndrome.
There is no specific antidote. Overdose treatment should be supportive and symptomatic. is not an effective method of accelerated excretion of dexamethasone and the body.

Storage conditions:

Storage conditions. Keep out of the reach of children, protected from light at a temperature not exceeding 25° C.

Shelf life is 2 years.

Vacation conditions:

On prescription

Packaging:

GKS. Suppresses the function of leukocytes and tissue macrophages.
Drug: DEXAMETAZONE
The active substance of the drug: dexamethasone
ATX coding: H02AB02
KFG: GCS for injection
Registration number: P No. 014442 / 01-2002
Date of registration: 11.10.02
Owner reg. ID: SHREYA LIFE SCIENCES Pvt. Ltd. (India)

Release form Dexamethasone (solution for injection), drug packaging and composition.

1 amp.

4 mg

1 ml - dark glass ampoules (25) - cardboard boxes.
1 ml - dark glass bottles (25) - cardboard boxes.

Solution for injection is clear, colorless or pale yellow.

1 ml
1 amp.
dexamethasone sodium phosphate (calculated as dexamethasone phosphate)
4 mg
8 mg

Excipients: methylparaben, propylparaben, sodium metabisulfite, disodium edetate, sodium hydroxide, water d / i.

2 ml - dark glass ampoules (25) - cardboard boxes.
2 ml - dark glass bottles (25) - cardboard boxes.

DESCRIPTION OF THE ACTIVE SUBSTANCE.
All the information given is presented only for familiarization with the drug, you should consult your doctor about the possibility of use.

Pharmacological action Dexamethasone (solution for injection)

GKS. Suppresses the function of leukocytes and tissue macrophages. Limits the migration of leukocytes to the area of \u200b\u200binflammation. Violates the ability of macrophages to phagocytosis, as well as the formation of interleukin-1. Promotes the stabilization of lysosomal membranes, thereby reducing the concentration of proteolytic enzymes in the area of \u200b\u200binflammation. Reduces capillary permeability due to the release of histamine. Suppresses fibroblast activity and collagen formation.

Inhibits the activity of phospholipase A2, which leads to suppression of the synthesis of prostaglandins and leukotrienes. Suppresses the release of COX (mainly COX-2), which also helps to reduce the production of prostaglandins.

Reduces the number of circulating lymphocytes (T- and B-cells), monocytes, eosinophils and basophils due to their movement from the vascular bed into the lymphoid tissue; inhibits the formation of antibodies.

Dexamethasone suppresses the release of ACTH and β-lipotropin by the pituitary gland, but does not reduce the level of circulating β-endorphin. Inhibits the secretion of TSH and FSH.

When applied directly to the vessels, it has a vasoconstrictor effect.

Dexamethasone has a pronounced dose-dependent effect on the metabolism of carbohydrates, proteins and fats. Stimulates gluconeogenesis, promotes the uptake of amino acids by the liver and kidneys, increases the activity of gluconeogenesis enzymes. In the liver, dexamethasone enhances the storage of glycogen, stimulating the activity of glycogen synthetase and the synthesis of glucose from the products of protein metabolism. An increase in blood glucose activates the release of insulin.

Dexamethasone inhibits the uptake of glucose by fat cells, which leads to the activation of lipolysis. However, due to the increase in insulin secretion, lipogenesis is stimulated, which leads to the accumulation of fat.

It has a catabolic effect in lymphoid and connective tissue, muscles, adipose tissue, skin, bone tissue. Osteoporosis and Itsenko-Cushing's syndrome are the main factors limiting long-term GCS therapy. As a result of the catabolic effect, growth suppression in children is possible.

In high doses, dexamethasone can increase the excitability of brain tissue and help lower the seizure threshold. Stimulates excess production of hydrochloric acid and pepsin in the stomach, which contributes to the development of peptic ulcers.

With systemic use, the therapeutic activity of dexamethasone is due to its anti-inflammatory, antiallergic, immunosuppressive and antiproliferative effects.

When applied topically and locally, the therapeutic activity of dexamethasone is due to its anti-inflammatory, antiallergic and antiexudative (due to the vasoconstrictor effect) action.

In terms of anti-inflammatory activity, hydrocortisone is 30 times higher, does not have mineralocorticoid activity.

Pharmacokinetics of the drug.

Plasma protein binding - 60-70%. Penetrates through histohematogenous barriers. It is excreted in small amounts in breast milk.

Metabolized in the liver.

T1 / 2 is 2-3 hours. It is excreted by the kidneys.

When applied topically in ophthalmology, it is absorbed through the cornea with intact epithelium into the moisture of the anterior chamber of the eye. With inflammation of the tissues of the eye or damage to the mucous membrane and cornea, the rate of absorption of dexamethasone significantly increases.

Indications for use:

For oral administration: Addison-Birmer disease; acute and subacute thyroiditis, hypothyroidism, progressive ophthalmopathy associated with thyrotoxicosis; bronchial asthma; rheumatoid arthritis in the acute phase; NNC; connective tissue diseases; autoimmune hemolytic anemias, thrombocytopenia, aplasia and hypoplasia of hematopoiesis, agranulocytosis, serum sickness; acute erythroderma, pemphigus (normal), acute eczema (at the beginning of treatment); malignant tumors (as palliative therapy); congenital adrenogenital syndrome; edema of the brain (usually after prior parenteral administration of GCS).

For parenteral administration: shock of various origins; edema of the brain (with a brain tumor, traumatic brain injury, neurosurgical intervention, cerebral hemorrhage, encephalitis, meningitis, radiation injury); asthmatic status; severe allergic reactions (Quincke's edema, bronchospasm, dermatosis, acute anaphylactic reaction to drugs, serum transfusion, pyrogenic reactions); acute hemolytic anemia, thrombocytopenia, acute lymphoblastic leukemia, agranulocytosis; severe infectious diseases (in combination with antibiotics); acute insufficiency of the adrenal cortex; spicy croup; joint diseases (periarthritis of the shoulder scapula, epicondylitis, styloiditis, bursitis, tendovaginitis, compression neuropathy, osteochondrosis, arthritis of various etiologies, osteoarthritis).

For use in ophthalmic practice: non-purulent and allergic conjunctivitis, keratitis, keratoconjunctivitis without damage to the epithelium, iritis, iridocyclitis, blepharoconjunctivitis, blepharitis, episcleritis, scleritis, inflammation after eye injuries and surgical interventions, sympathetic.

Dosage and method of administration of the drug.

Individual. Inside for severe diseases, at the beginning of treatment, up to 10-15 mg / day is prescribed, the maintenance dose may be 2-4.5 mg or more per day. The daily dose is divided into 2-3 doses. In small doses, take 1 time / day in the morning.

For parenteral administration, it is injected into / in a slow stream or drip (in acute and urgent conditions); i / m; periarticular and intraarticular injection is also possible. During the day, you can enter from 4 to 20 mg of dexamethasone 3-4 times. The duration of parenteral administration is usually 3-4 days, then they switch to maintenance therapy with the oral form. In the acute period for various diseases and at the beginning of treatment, dexamethasone is used in higher doses. When the effect is achieved, the dose is reduced at intervals of several days until a maintenance dose is reached or until treatment is discontinued.

When used in ophthalmology in acute conditions, 1-2 drops are instilled into the conjunctival sac every 1-2 hours, then, with a decrease in inflammation, every 4-6 hours.The duration of treatment is from 1-2 days to several weeks, depending on the clinical course diseases.

Side effect of Dexamethasone (solution for injection):

From the endocrine system: decreased glucose tolerance, steroid diabetes mellitus or manifestation of latent diabetes mellitus, suppression of adrenal function, Itsenko-Cushing's syndrome (moon-shaped face, pituitary obesity, hirsutism, increased blood pressure, dysmenorrhea, amenorrhea, myasthenia gravis, striae) sexual development in children.

From the side of metabolism: increased excretion of calcium ions, hypocalcemia, increased body weight, negative nitrogen balance (increased protein breakdown), increased sweating, hypernatremia, hypokalemia.

From the side of the central nervous system: delirium, disorientation, euphoria, hallucinations, manic-depressive psychosis, depression, paranoia, increased intracranial pressure, nervousness or anxiety, insomnia, dizziness, vertigo, cerebellar pseudotumor, headache, convulsions.

From the side of the cardiovascular system: arrhythmias, bradycardia (up to cardiac arrest); development (in predisposed patients) or increased severity of chronic heart failure, ECG changes characteristic of hypokalemia, increased blood pressure, hypercoagulation, thrombosis. In patients with acute and subacute myocardial infarction - the spread of the focus of necrosis, slowing down the formation of scar tissue, which can lead to rupture of the heart muscle; with intracranial administration - epistaxis.

From the digestive system: nausea, vomiting, pancreatitis, steroid ulcers of the stomach and duodenum, erosive esophagitis, bleeding and perforation of the gastrointestinal tract, increased or decreased appetite, flatulence, hiccups; rarely - increased activity of hepatic transaminases and alkaline phosphatase.

From the sensory organs: posterior subcapsular cataract, increased intraocular pressure with possible damage to the optic nerve, a tendency to develop secondary bacterial, fungal or viral eye infections, trophic changes in the cornea, exophthalmos.

From the musculoskeletal system: growth retardation and ossification processes in children (premature closure of the epiphyseal growth zones), osteoporosis (very rarely - pathological bone fractures, aseptic necrosis of the humerus and femur head), muscle tendon rupture, steroid myopathy, decreased muscle mass (atrophy).

Dermatological reactions: delayed wound healing, petechiae, ecchymosis, thinning of the skin, hyper- or hypopigmentation, steroid acne, striae, a tendency to develop pyoderma and candidiasis.

Allergic reactions: generalized (skin rash, itching of the skin, anaphylactic shock) and when applied topically.

Effects associated with immunosuppressive action: the development or exacerbation of infections (the appearance of this side effect is facilitated by jointly used immunosuppressive drugs and vaccination).

Local reactions: with parenteral administration - tissue necrosis.

When applied externally: rarely - itching, hyperemia, burning, dryness, folliculitis, acne, hypopigmentation, perioral dermatitis, allergic dermatitis, skin maceration, secondary infection, skin atrophy, striae, prickly heat. With prolonged use or application to large areas of the skin, the development of systemic side effects characteristic of GCS is possible.

Contraindications to the drug:

For short-term use for health reasons - hypersensitivity to dexamethasone.

For intra-articular injection and injection directly into the lesion: previous arthroplasty, pathological bleeding (endogenous or caused by the use of anticoagulants), intra-articular bone fracture, an infectious (septic) inflammatory process in the joint and periarticular infections (including a history), and general infectious disease, pronounced periarticular osteoporosis, no signs of inflammation in the joint ("dry" joint, for example, in osteoarthritis without synovitis), pronounced bone destruction and joint deformation (sharp narrowing of the joint space, ankylosis), joint instability as an outcome of arthritis, aseptic necrosis of the the joint of the epiphyses of the bones.

For external use: bacterial, viral, fungal skin diseases, skin tuberculosis, skin manifestations of syphilis, skin tumors, post-vaccination period, violation of the integrity of the skin (ulcers, wounds), children's age (up to 2 years, with itching in the anus - up to 12 years), rosacea, acne vulgaris, perioral dermatitis.

For use in ophthalmology: bacterial, viral, fungal eye diseases, tuberculous eye disease, violation of the integrity of the ocular epithelium, an acute form of purulent eye infection in the absence of specific therapy, diseases of the cornea, combined with epithelial defects, trachoma, glaucoma.

Application during pregnancy and lactation.

During pregnancy (especially in the first trimester), as well as during lactation, dexamethasone is used taking into account the expected therapeutic effect and negative effect on the fetus. With prolonged therapy during pregnancy, the possibility of fetal growth disorders is not excluded. If used at the end of pregnancy, there is a risk of atrophy of the adrenal cortex in the fetus, which may require replacement therapy in the newborn.

Special instructions for the use of Dexamethasone (solution for injection).

Use with caution within 8 weeks before and 2 weeks after vaccination, with lymphadenitis after BCG vaccination, with immunodeficiency conditions (including AIDS or HIV infection).

Use with caution in diseases of the gastrointestinal tract: gastric ulcer and duodenal ulcer, esophagitis, gastritis, acute or latent peptic ulcer, newly created intestinal anastomosis, ulcerative colitis with the threat of perforation or abscess formation, diverticulitis.

Use with caution in diseases of the cardiovascular system, incl. after a recent myocardial infarction (in patients with acute and subacute myocardial infarction, it is possible to spread the focus of necrosis, slow down the formation of scar tissue and, as a result, rupture of the heart muscle), with decompensated chronic heart failure, arterial hypertension, hyperlipidemia), with endocrine diseases - diabetes mellitus ( including impaired tolerance to carbohydrates), thyrotoxicosis, hypothyroidism, Itsenko-Cushing's disease, with severe chronic renal and / or hepatic failure, nephrourolithiasis, with hypoalbuminemia and conditions predisposing to its occurrence, with systemic osteoporosis, psychosis, , obesity (III-IV degree), with poliomyelitis (except for the form of bulbar encephalitis), open and closed angle glaucoma.

If necessary, intra-articular administration should be used with caution in patients with a general severe condition, ineffectiveness (or short duration) of the action of 2 previous injections (taking into account the individual properties of the GCS used).

Before and during GCS therapy, it is necessary to monitor a complete blood count, blood glucose levels and plasma electrolytes.

With intercurrent infections, septic conditions and tuberculosis, it is necessary to simultaneously carry out antibiotic therapy.

Dexamethasone-induced relative adrenal insufficiency may persist for several months after withdrawal. Taking this into account, in stressful situations that arise during this period, hormonal therapy is resumed with the simultaneous administration of salts and / or mineralocorticoids.

When using dexamethasone in patients with corneal herpes, the possibility of corneal perforation should be borne in mind. During treatment, it is necessary to monitor intraocular pressure and the condition of the cornea.

With the sudden cancellation of dexamethasone, especially in the case of previous use in high doses, the so-called withdrawal syndrome occurs (not caused by hypocorticism), manifested by anorexia, nausea, lethargy, generalized musculoskeletal pain, general weakness. After discontinuation of dexamethasone, a relative insufficiency of the adrenal cortex may persist for several months. If during this period stressful situations arise, they are prescribed (according to indications) for the time of GCS, if necessary in combination with mineralocorticoids.

During the treatment period, monitoring of blood pressure, water-electrolyte balance, peripheral blood picture and glycemic level, as well as observation of an ophthalmologist is required.

In children, during long-term treatment, careful monitoring of the dynamics of growth and development is necessary. Children who, during the period of treatment, were in contact with patients with measles or chickenpox, are prophylactically prescribed specific immunoglobulins.

Interaction of Dexamethasone (solution for injection) with other drugs.

With simultaneous use with antipsychotics, bukarban, azathioprine, there is a risk of developing cataracts; with drugs that have an anticholinergic effect - the risk of developing glaucoma.

With simultaneous use with dexamethasone, the effectiveness of insulin and oral hypoglycemic drugs decreases.

With simultaneous use with hormonal contraceptives, androgens, estrogens, anabolic steroids, hirsutism, acne are possible.

With simultaneous use with diuretics, it is possible to increase the excretion of potassium; with NSAIDs (including acetylsalicylic acid) - the incidence of erosive and ulcerative lesions and bleeding from the gastrointestinal tract increases.

When used simultaneously with oral anticoagulants, the anticoagulant effect may be weakened.

With simultaneous use with cardiac glycosides, it is possible to impair the tolerance of cardiac glycosides due to potassium deficiency.

With simultaneous use with aminoglutethimide, it is possible to reduce or inhibit the effects of dexamethasone; with carbamazepine - it is possible to reduce the effect of dexamethasone; with ephedrine - increased excretion of dexamethasone from the body; with imatinib - it is possible to reduce the concentration of imatinib in the blood plasma due to the induction of its metabolism and increased excretion from the body.

With simultaneous use with itraconazole, the effects of dexamethasone are enhanced; with methotrexate - an increase in hepatotoxicity is possible; with praziquantel - a decrease in the concentration of praziquantel in the blood is possible.

With simultaneous use with rifampicin, phenytoin, barbiturates, the effects of dexamethasone may be weakened due to an increase in its excretion from the body.

Description

Transparent colorless or yellowish solution.

Composition

For one ampoule: active substance - dexamethasone phosphate (in the form of dexamethasone sodium phosphate) - 4.0 mg (ampoule 1 ml) and 8.0 mg (ampoule 2 ml); excipients: glycerin, disodium phosphate dihydrate, disodium edetate, water for injection.

Pharmacotherapeutic group

Systemic corticosteroids. Glucocorticoids.
ATC code: Н02АВ02.

pharmachologic effect

Dexamethasone is a synthetic fluorinated glucocorticosteroid that has anti-inflammatory, antiallergic, immunosuppressive effects, has antiexudative and antifibroblastogenic properties, and practically does not have a mineralocorticosteroid effect. Interacts with specific cytoplasmic receptors and forms a complex that penetrates the cell nucleus and stimulates the synthesis of mRNA; the latter induces the formation of proteins that mediate cellular effects, including lipocortin, which inhibits phospholipase A2, inhibits the liberation of arachidonic acid, and inhibits the biosynthesis of endoperoxides, prostaglandins, leukotrienes, which promote inflammation, allergies, etc. Dexamethasone inhibits the expression of proteins involved in the development of inflammatory reactions. Interferes with the release of inflammatory mediators from eosinophils and mast cells. Inhibits the activity of hyaluronidase, collagenase and proteases. Suppresses fibroblast activity and collagen formation. Reduces capillary permeability, stabilizes cell membranes, including lysosomal, inhibits the release of cytokines from lymphocytes and macrophages.

Indications for use

Diseases requiring the administration of a fast-acting glucocorticosteroid, as well as cases when oral administration of the drug is not possible. Addison's disease, congenital adrenal hyperplasia, adrenal insufficiency (usually in combination with mineralocorticoids), adrenogenital syndrome, subacute thyroiditis, tumor hypercalcemia, shock (anaphylactic, post-traumatic, postoperative, cardiogenic, hemotransfusional rheumatoid arthritis) , collagenosis (rheumatic diseases - as an additional therapy for short-term treatment of exacerbation of the disease, disseminated lupus erythematosus, etc.), joint diseases (post-traumatic osteoarthritis, acute gouty arthritis, psoriatic arthritis, synovitis in osteoarthritis, acute nonspecific tendosynovitis, bursitis, epithelium Bekhterev, etc.), bronchial asthma, status asthmaticus, anaphylactoid reactions, incl. caused by drugs; edema of the brain (with tumors, traumatic brain injury, neurosurgical intervention, cerebral hemorrhage, encephalitis, meningitis); ulcerative colitis, sarcoidosis, beryllium disease, disseminated tuberculosis (only in combination with anti-tuberculosis drugs), Loeffler's disease, and other severe respiratory diseases; anemia (autoimmune, hemolytic, congenital, hypoplastic, idiopathic, erythroblastopenia), idiopathic thrombocytopenic purpura (in adults), secondary thrombocytopenia, lymphoma (Hodgkin's and non-Hodgkin's), leukemia, lymphocytic leukemia (acute, chronic) , acute infectious laryngeal edema (adrenaline is the drug of first choice), trichinosis with damage to the nervous system or involvement of the myocardium, nephrotic syndrome, severe inflammatory processes after eye injuries and operations, skin diseases: pemphigus, Stevens-Johnson syndrome, exfoliative dermatitis, bullous herpetiform dermatitis , severe seborrheic dermatitis, severe psoriasis, atopic dermatitis.

Method of administration and dosage

It is intended for intravenous (i / v), intramuscular (i / m), intra-articular, periarticular and retrobulbar administration. The dosage regimen is individual and depends on the indications, the patient's condition and his response to therapy. In order to prepare a solution for intravenous drip infusion, an isotonic sodium chloride solution or 5% dextrose solution should be used. The administration of high doses of dexamethasone can be continued only until the patient's condition has stabilized, which usually does not exceed 48 to 72 hours. Adults in acute and urgent conditions are injected intravenously slowly, by stream or drip, or intramuscularly at a dose of 4-20 mg 3-4 times a day. The maximum daily dose is 80 mg. The maintenance dose is 0.2-9 mg per day. The course of treatment is 3-4 days, then they switch to oral administration of Dexamethasone.
In shock, adults - 20 mg IV once, then 3 mg / kg for 24 hours as a continuous infusion or once 2-6 mg / kg IV, or 40 mg IV every 2-6 hours.
With cerebral edema (adults) - 10 mg IV, then 4 mg every 6 hours IM until symptoms are eliminated; the dose is reduced after 2-4 days and gradually - within 5-7 days - treatment is stopped.
In case of an acute allergic reaction or exacerbation of a chronic allergic disease, dexamethasone should be prescribed according to the following schedule, taking into account parenteral and oral administration: 1 day - intravenous solution for injection 4 mg / ml at a dose of 1-2 ml (4-8 mg); 2 and 3 days - orally 1 mg (2 tablets 0.5 mg) 2 times a day; 4 and 5 days - inside, 0.5 mg (1 tablet, 0.5 mg) 2 times a day; 6 and 7 days - orally once 1 tablet of 0.5 mg; on day 8, the effectiveness of therapy is assessed.
For injection into the joint, the recommended doses are between 0.4 mg and 4 mg. The dose depends on the size of the affected joint:
- large joints (for example, knee joint): 2-4 mg;
- small (for example, interphalangeal, temporal joint): 0.8-1 mg. If re-introduction is necessary, it is possible not earlier than in 3-4 weeks.
The insertion into the same joint can be performed three or four times throughout life. More frequent intra-articular injection can damage articular cartilage and cause bone necrosis.
The dose of dexamethasone, which is injected into the synovial bag, is usually 2-3 mg, in the tendon sheath - 0.4-1 mg. Dexamethasone can be injected simultaneously into no more than two lesions. Doses for administration to soft tissues (around the joint) are 2-6 mg.
Children
In case of adrenal cortex insufficiency, the dose for children during replacement therapy is 0.0233 mg / kg (0.67 mg / m2 body surface area) IM, divided into 3 injections every 3rd day, or 0.00776 - 0, 01165 mg / kg (0.233 - 0.335 mg / m 2 body surface area) daily.
When used for other indications, the recommended dose is 0.02776 - 0.16665 mg / kg (0.833 - 5 mg / m 2 body surface area) every 12-24 hours.

Side effect

The incidence of side effects is given in the following gradation: very frequent (≥1 / 10); frequent (≥1 / 100,<1/10); нечастые (≥1/1000, <1/100); редкие (≥1/10000, <1/1000); очень редкие (<1/10000); неизвестные (по имеющимся данным определить частоту встречаемости не представляется возможным). Частота нежелательных эффектов зависит от дозы и продолжительности лечения.
Side effects associated with short-term treatment with dexamethasone include:
From the immune system: infrequent - hypersensitivity reactions.
: frequent - transient adrenal insufficiency.
: frequent - decreased carbohydrate tolerance, increased appetite and weight gain; infrequent - hypertriglyceridemia.
Psychiatric disorders: frequent - mental disorders.
: infrequent - peptic ulcers and acute pancreatitis.
Side effects associated with long-term dexamethasone treatment include:
From the immune system: infrequent - decreased immune response and increased susceptibility to infections.
From the endocrine system: frequent - long-term adrenal insufficiency, stunted growth in children and adolescents.
Metabolic and nutritional disorders: frequent - upper type of obesity.
Violation of the organ of vision: infrequent - cataract, glaucoma.
: infrequent - arterial hypertension.
: frequent - thinning and fragility of the skin.
: frequent - muscle atrophy, osteoporosis; infrequent - aseptic bone necrosis.
The following side effects associated with dexamethasone treatment may occur (presented in decreasing order of importance).
From the lymphatic system and the hematopoietic system: rare - thromboembolic complications, a decrease in the number of monocytes and / or lymphocytes, leukocytosis, eosinophilia (like other glucocorticoids), thrombocytopenia and non-thrombocytopenic purpura.
From the immune system: rare - rash, bronchospasm, anaphylactic reactions; very rare - angioedema.
From the sidehearts: very rare - polyfocal ventricular extrasystoles, transient bradycardia, heart failure, myocardial rupture after a recent acute infarction.
From the vascular system: infrequent - hypertensive encephalopathy.
Psychiatric disorders: infrequent - changes in personality and behavior, which are most often manifested by euphoria, insomnia, irritability, hyperkinesia, depression; rarely - psychosis.
From the endocrine system: often - adrenal insufficiency and atrophy (decreased response to stress), Itsenko-Cushing's syndrome, irregularity of the menstrual cycle, hirsutism.
Metabolic and nutritional disorders: rarely - the transition of latent diabetes mellitus to clinically manifest, increased need for insulin or oral hypoglycemic drugs in patients with diabetes mellitus, sodium and water retention, increased potassium loss; very rarely - hypokalemic alkalosis, negative nitrogen balance due to protein catabolism.
From the digestive system: infrequent - nausea, hiccups, stomach ulcers or 12 duodenal ulcers; very rarely - esophagitis, perforation of ulcers and bleeding of the gastrointestinal tract (hematomesis, melena), pancreatitis, perforation of the gallbladder and intestines (especially in patients with chronic inflammatory diseases of the large intestine).
On the part of the musculoskeletal system and connective tissue: frequent - muscle weakness, steroid myopathy (muscle weakness due to catabolism of muscle tissue); very rare - compression fractures of the vertebrae, tendon ruptures (especially with the combined use of some quinolones), necrosis of the cartilage tissue of the joint and bones (with frequent intra-articular injections).
On the part of the skin and subcutaneous tissue: frequent - delayed healing of wounds, striae, petechiae and ecchymosis, increased sweating, acne, suppression of skin reactions during allergological tests; very rarely - allergic dermatitis, urticaria.
Violation of the organ of vision: infrequent - increased intraocular pressure; very rarely - exophthalmos.
From the reproductive system and mammary glands: rarely - impotence.
General violations and violations at the injection site: very rare - edema, hyper- and hypopigmentation of the skin, atrophy of the skin or subcutaneous tissue, sterile abscess and skin redness.
Signs and symptoms of glucocorticosteroid withdrawal syndrome.
If a patient who has been taking glucocorticosteroids for a long time, quickly reduce the dose of the drug, signs of adrenal insufficiency, arterial hypotension, and death may develop.
In some cases, withdrawal symptoms may be similar to symptoms and signs of exacerbation or recurrence of the disease for which the patient was receiving treatment. If severe adverse events develop, treatment should be discontinued.
In the event of the above adverse reactions or adverse reactions that are not specified in these instructions for medical use of the medicinal product, you should consult a doctor.

Contraindications

Hypersensitivity to the active substance or other ingredients of the drug, acute viral, bacterial and systemic fungal infections (without appropriate treatment), amoebic infections, infections of the joints and periarticular soft tissues, active forms of tuberculosis, the period before and after prophylactic vaccinations (especially antiviral), glaucoma, acute purulent eye infection (retrobulbar injection), Cushing's syndrome, vaccination with a live vaccine, intramuscular administration is contraindicated in patients with severe disorders of the blood coagulation system.

Overdose

There are isolated reports of cases of acute overdose or death due to acute overdose. Overdose usually manifests itself only after a few weeks of excessive doses and can cause most of the undesirable effects listed in the "adverse reactions" section, primarily Cushing's syndrome.
There is no known specific antidote. Treatment is supportive and symptomatic. Hemodialysis is ineffective in accelerating the elimination of dexamethasone from the body.

Precautions

Limited for use in: peptic ulcers of the gastrointestinal tract, gastric ulcer and duodenal ulcer, esophagitis, gastritis, intestinal anastomosis (in the closest history); congestive heart failure, arterial hypertension, thrombosis, diabetes mellitus, osteoporosis, Itsenko-Cushing's disease, acute renal and / or liver failure, psychosis, convulsive conditions, myasthenia gravis, open-angle glaucoma, AIDS, pregnancy, breastfeeding. With long-term treatment (more than 3 weeks) in high doses (more than 1 mg of Dexamethasone per day) for the prevention of secondary adrenal insufficiency, Dexamethasone is withdrawn gradually. This condition can last for several months, therefore, if stress occurs (including against the background of general anesthesia, surgery or trauma), an increase in the dose or administration of Dexamethasone is necessary. Topical application of Dexamethasone can lead to systemic effects. With intra-articular administration, it is necessary to exclude local infectious processes (septic arthritis). Frequent intra-articular administration can lead to joint tissue damage and osteonecrosis. Patients are not recommended to overload the joints (despite the decrease in symptoms, the inflammatory processes in the joint continue).
Care should be taken when prescribing against the background of ulcerative colitis, intestinal diverticulitis, hypoalbuminemia. The appointment in the case of intercurrent infections, tuberculosis, septic conditions requires preliminary and then simultaneous antibiotic therapy. GCS can increase the susceptibility or mask the symptoms of infectious diseases. Chickenpox, measles, and other infections can be more difficult and even fatal in non-immunized individuals. Immunosuppression often develops with prolonged use of GCS, but it can also occur with short-term treatment. Against the background of concomitant tuberculosis, it is necessary to carry out adequate antimycobacterial chemotherapy. The simultaneous use of high doses of dexamethasone with inactivated viral or bacterial vaccines may not give the desired result. Immunization against the background of GCS replacement therapy is permissible. It is necessary to take into account the increased action in hypothyroidism and cirrhosis of the liver, aggravation of psychotic symptoms and emotional lability at their high initial level, masking of some symptoms of infection, the likelihood of persisting for several months (up to 1 year) relative adrenal insufficiency after discontinuation of Dexamethasone (especially in the case of prolonged use ). With a long course, the dynamics of the growth and development of children is carefully monitored, an ophthalmological examination is systematically carried out, the state of the hypothalamic-pituitary-adrenal system, and the level of glucose in the blood are monitored. Discontinue therapy only gradually. It is recommended to be careful when carrying out any kind of operations, the occurrence of infectious diseases, injuries, avoid immunization, exclude the use of alcoholic beverages. In case of contact with patients with measles, chickenpox and other infections, concomitant prophylactic therapy is prescribed.
In rare cases, anaphylactoid reactions may occur in patients receiving parenteral corticosteroids. Appropriate precautions should be taken in patients prior to administration, especially if the patient has a history of allergy to any drug.
Corticosteroids can worsen the course of systemic fungal infections and, therefore, should not be used in the presence of such infections.
Corticosteroids can activate latent amebiasis. Therefore, it is recommended that latent or active amebiasis be ruled out prior to initiating corticosteroid therapy.
Medium to high doses of cortisone or hydrocortisone can cause high blood pressure, salt and water retention, and increased potassium excretion. However, it may be necessary to limit salt and potassium. All corticosteroids increase calcium excretion.
Use corticosteroids with great caution in patients with recent myocardial infarction due to the risk of ventricular wall rupture.
Corticosteroids should be used with caution in patients with herpes simplex eye infections due to the risk of corneal perforation.
Aspirin should be used with caution in combination with corticosteroids because of the risk of hypoprothrombinemia.
In some patients, steroids can increase or decrease motility and sperm count.
You can observe:
- loss of muscle mass;
- pathological fractures of the long bones;
- compression fractures of the vertebrae;
- aseptic necrosis of the femoral head and humerus.
During treatment with dexamethasone, a worsening of the course of diabetes mellitus or the transition of latent diabetes to a form with clinical manifestations is possible.
The drug contains 0.0196 mmol (0.045 mg) sodium per dose.
Children
In children, in order to avoid overdose, the dose is calculated based on the surface area of \u200b\u200bthe body. Dexamethasone is used in children and adolescents only under strict indications. During treatment with dexamethasone, the growth and development of children and adolescents must be carefully monitored.
Premature infants: There is evidence of a negative effect on subsequent neurological development of early use (<96 часов) в начальных дозах 0,25 мг/ кг два раза в день у недоношенных детей с бронхолегочной дисплазией.
Elderly patients
The unwanted effects of systemic corticosteroids, such as hypokalemia, osteoporosis, hypertension, diabetes mellitus, increased susceptibility to infections, and thinning of the skin, may have more serious consequences in older patients. Clinical observation is recommended to avoid life-threatening adverse reactions.

Application during pregnancy and lactation

Glucocorticoids cross the placenta and can reach high concentrations in the fetus. Dexamethasone is less extensively metabolized in the placenta than, for example, with prednisolone, so high concentrations of dexamethasone can be determined in the fetus. Therapeutic doses of glucocorticoids can increase the risk of placental insufficiency, oligohydramnios, fetal growth and development retardation or intrauterine death, increase the number of leukocytes (neutrophils) in a child, as well as the risk of developing adrenal insufficiency. Use during pregnancy is allowed if the expected effect of therapy outweighs the potential risk to the fetus. During treatment, breastfeeding should be discontinued. Infants born to mothers who have received significant doses of corticosteroids during pregnancy should be closely monitored for signs of adrenal hypofunction.

Influence on the ability to drive a car and other potentially dangerous mechanisms

During treatment, you should not drive vehicles and engage in potentially hazardous activities that require increased attention and speed of psychomotor reactions.

Interaction with other medicinal products

The therapeutic and toxic effects of Dexamethasone are reduced by barbiturates, phenytoin, rifabutin, carbamazepine, ephedrine and aminoglutethimide, rifampicin (accelerate metabolism); somatotropin; antacids (reduce absorption), enhance - estrogen-containing oral contraceptives. Concomitant use with cyclosporine increases the risk of seizures in children. The risk of arrhythmias and hypokalemia is increased by cardiac glycosides and diuretics, the likelihood of edema and arterial hypertension - sodium-containing drugs and nutritional supplements, severe hypokalemia, heart failure and osteoporosis - amphotericin B and carbonic anhydrase inhibitors; risk of erosive and ulcerative lesions and bleeding from the gastrointestinal tract - non-steroidal anti-inflammatory drugs. When used simultaneously with live antiviral vaccines and against the background of other types of immunization, it increases the risk of virus activation and infection. Simultaneous use with thiazide diuretics, furosemide, ethacrynic acid, carbonic anhydrase inhibitors, amphotericin B can lead to severe hypokalemia, which can increase the toxic effects of cardiac glycosides and non-depolarizing muscle relaxants. Weakens the hypoglycemic activity of insulin and oral antidiabetic agents; anticoagulant - coumarins; diuretic - diuretic diuretics; immunotropic - vaccination (suppresses antibody production). It impairs the tolerance of cardiac glycosides (causes potassium deficiency), reduces the concentration of salicylates and praziquantel in the blood. May increase the concentration of glucose in the blood, which requires a dose adjustment of hypoglycemic drugs, sulfonylurea derivatives, asparaginase. GCS increase the clearance of salicylates, therefore, after discontinuation of Dexamethasone, it is necessary to reduce the dose of salicylates. When used concomitantly with indomethacin, the Dexamethasone suppression test may give false negative results.
The combined use of dexamethasone and drugs that inhibit the activity of the CYP ZA4 enzyme (ketoconazole, macrolides) may cause an increase in the concentration of dexamethasone in serum. Dexamethasone is a moderate inducer of CYP ZA4. Concomitant use with drugs that are metabolized by CYP ZA4 (indinavir, erythromycin) can increase their clearance, which leads to a decrease in serum concentration.
The simultaneous use of dexamethasone and thalidomide can cause toxic epidermal necrolysis.
The simultaneous use of ritodrin and dexamethasone is contraindicated during childbirth, as this can lead to the death of the woman in labor due to pulmonary edema.
During the treatment period, the simultaneous use of drugs and food with a high sodium content is not recommended.

Storage conditions

In a dark place at a temperature not exceeding 25 ° C.
Keep out of the reach of children.

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