Varfarin-FS tab. of 2.5 mg No. 100

tablets "Varfarin-FS" are applied at the following indications:

• prevention and treatment of a deep vein thrombosis and embolism of a pulmonary artery;
• secondary prevention of a myocardial infarction and prevention of tromboembolic episodes (stroke or a system embolism) after a myocardial infarction;
• prevention of tromboembolic episodes at patients with fibrillation of auricles, damages of heart valves or the fitted a prosthesis heart valves;
• prevention of the fast-taking place ischemic attacks and a stroke.

Structure

Active ingredient - sodium warfarin a clathrate (one tablet contains sodium warfarin clathrates in terms of 2.5 mg of warfarin of sodium).

Excipients: lactoses monohydrate, starch corn, gelatin, indigo carmine (E 132), magnesium stearate.

Contraindication

1. Hypersensitivity to warfarin or to any components of drug; the bleeding which is clinically established ​​; tendency to bleedings (hemophilia, angiohemophilia, thrombocytopenia and dysfunction of thrombocytes); in order to avoid risk of developing heavy bleedings within 72 hours after extensive surgeries, within 48 hours in a puerperal period; heavy renal and liver failure and cirrhosis; not treated or uncontrollable arterial hypertension; recent hemorrhagic stroke; the state of health which causes intracraneal hemorrhage, for example aneurysm of brain arteries, an aortic aneurysm; tendency to falling; lumbar puncture; operations of the central nervous system or operation in the eyes; gastrointestinal or renal bleedings and their complications; divertuculosis; malignant tumors; gullet varicosity; endocarditis or pericarditis (including exudative).
2. State at which therapy cannot be carried out rather safely (for example psychoses, dementia, alcoholism).
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3. medicament use Is contraindicated to women in the first trimester of pregnancy and within the last four weeks of pregnancy.
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4. medicament use Is contraindicated to patients with the increased risk of developing bleeding (including to patients with hemorrhagic diathesis, a gullet varicosity, aneurysms of arteries, a lumbar puncture, stomach ulcer, heavy wounds (including operating rooms), cerebrovascular disorders with risk of a cerebral hemorrhage, a bacterial endocarditis and malignant arterial hypertension).
5. Patients who receive treatment by warfarin should not use the medicaments (including medicaments of plant origin) containing hypericum perforatum (a St. John's wort usual) as their combined use causes decrease in concentration of warfarin in blood plasma that leads to decrease in clinical effect.

Optimum dose of medicament is established by

individually for each patient taking into account a condition of a coagulant system of blood. For standardization of results of definition of a prothrombin time it is recommended to use THINK, considering influence of the used thromboplastin on the size of a prothrombin time.

MNI Target level for oral anticoagulating therapy

Prevention of tromboembolic episodes at patients with the fitted a prosthesis heart valves: RUMPLE 2.5-3.5.

Other indications: RUMPLE 2.0-3.0.

to Patients with normal body weight and spontaneous RUMPLE

lower than 1.2 to appoint 10 mg of warfarin within three next days. Then to calculate a dose according to data stated below according to measurements THINK for the fourth day.

At patients with hereditary insufficiency of a protein With or S recommended initial dose makes 5 mg of warfarin within three next days. Then to calculate a dose according to data stated below according to measurements THINK for the fourth day.

patients with hereditary insufficiency of an antitrombotichesky protein With at the beginning of therapy warfarin have a risk of developing necrosis of skin. At such patients the use of medicament needs to be begun without load dose of warfarin even if to the patient enter heparin.

in case of development of necrosis of skin should stop warfarin use.

For patients of advanced age, patients with small body weight, with spontaneous RUMPLE higher than 1.2 or those which have associated diseases or receive any medicines affecting efficiency of anticoagulating therapy, the recommended initial dose makes 5 mg of warfarin within two next days. Then the dose is calculated according to data stated below according to measurements THINK for the third day.

Recommended dosage of the medicament "Varfarin-FS":

• day of 1 - 10 (5.0) mg/days;
• day of 2 - 10 (5.0) mg/days;
• put 3:
  • RUMPLE <2.0 - 10 (5.0) mg/days;
  RUMPLE
  • from 2.0 to 2.4 - 5.0 mg/days;
  RUMPLE
  • from 2.5 to 2.9 - 3.0 mg/days;
  RUMPLE
  • from 3.0 to 3.4 - 2.5 mg/days;
  RUMPLE
  • from 3.5 to 4.0 - 1.5 mg/days;
  RUMPLE
  • > 4.0 - to miss one day of reception;
• put 4-6:
  • RUMPLE <1.4 - 10.0 mg/days;
  RUMPLE
  • from 1.4 to 1.9 - 7.5 mg/days;
  RUMPLE
  • from 2.0 to 2.4 - 5.0 mg/days;
  RUMPLE
  • from 2.5 to 2.9 - 4.5 mg/days;
  RUMPLE
  • from 3.0 to 3.9 - 3.0 mg/days;
  RUMPLE
  • from 4.0 to 4.5 - to miss one day of reception, then - 1.5 mg/days;
  RUMPLE
  • > 4.5 - to miss two days of reception, then - 1.5 mg/days;
put
• 7 (a week dose of the medicament "Varfarin-FS"): RUMPLE
  • from 1.1 to 1.4 - increases by 20%;
  RUMPLE
  • from 1.5 to 1.9 - increases by 10%;
  RUMPLE
  • from 2.0 to 3.0 - the dose remains;
  RUMPLE
  • from 3.1 to 4.5 - decreases by 10%;
  RUMPLE
  • > 4.5 to miss reception while THINK will not become <4.5, then - to continue treatment by the dose reduced by 20%.

Measurement RUMPLE

to carry out daily, it will not be reached yet the stable target level which usually is established for 5-6 day of treatment. Then RUMPLE measurements to carry out weekly, reaching a 4 weeks interval. In case of big deviations in the THINK level or patients with diseases of a liver or diseases which influence vitamin K absorption intervals of measurements can have less than 4 weeks. Appointment new or cancellation of medicines which were accepted earlier demands carrying out additional measurements THINK. At long therapy the adjustment is carried out to a week dose of warfarin according to the data given above. If the dose demands correction, then RUMPLE the following measurement it is necessary to carry out in one or two weeks after correction. After this measurement proceed before achievement of 4 weeks intervals.

Children

Therapy by anticoagulants at children is carried out by

under observation of the pediatrician. Doses are selected according to the data given below.

Recommended dosage:

• put 1 - if the MNI basic value from 1.0 to 1.3, then the initial dose makes 0.2 mg/kg of body weight (0.1 mg/kg of body weight in an abnormal liver function);
• days from the 2nd for the 4th, if THINK value (maintenance dose):
  • from 1.1 to 1.3 - to repeat an initial dose;
  • from 1.4 to 1.9 - 50% of an initial dose;
  • from 2.0 to 3.0 - 50% of an initial dose;
  • from 3.1 to 3.5 - 25% of an initial dose;
  • > 3.5 - to stop administration of medicament before achievement THINK <3.5, then to resume treatment by the dose making 50% of the previous dose;
• maintenance therapy, if THINK value (week dose):
  • from 1.1 to 1.4 - to increase a dose by 20%;
  • from 1.5 to 1.9 - to increase a dose by 10%;
  • from 2.0 to 3.0 - without changes;
  • from 3.1 to 3.5 - to reduce a dose by 10%;
  • > 3.5 - to stop administration of medicament before achievement THINK <3.5, then to resume treatment by a dose 20% less previous.

Planned operations

Before - at - and postoperative anticoagulating therapy to carry out as it is provided below.

THINK one week prior to the appointed operation.

to Stop intake of warfarin in 1-5 days prior to operation. In case of high risk of thrombosis to the patient for prevention subcutaneously to enter low-molecular heparin. Pause duration in intake of warfarin depends from THINK. To stop intake of warfarin:

• in 5 days prior to operation if THINK> 4.0;
• in 3 days prior to operation if RUMPLE from 3.0 to 4.0;
• in 2 days prior to operation if RUMPLE from 2.0 to 3.0.

THINK in the evening before operation and to enter 0.5-1.0 mg of vitamin K inside or intravenously if THINK> 1.8.

to Take into account need of infusion of unfractionated heparin or preventive administration of low-molecular heparin in day of operation.

hypodermic administration of low-molecular heparin within 5-7 days after operation with the accompanying restoration of intake of warfarin.

intake of warfarin from a usual maintenance dose on the same day in the evening after small operations and in the afternoon when the patient begins to receive an enteroalimentation after large operations.

Pregnant

At use of medicament during pregnancy warfarin can result

Feature of use

Warfarin can be applied during feeding by a breast. Warfarin is emitted in breast milk, but if the medicament is taken in therapeutic doses, then emergence of undesirable reactions in the newborn is not expected.

Drivers

Drug does not affect ability to run motor transport or to work with mechanisms.

Overdose

Increased THINK level is an overdose indicator warfarin thereof the risk of developing of bleedings increases. Reduction twice of blood-coagulation factors of ІV indicates increase THINK. The increased THINK level is shown within 24 hours and reaches the maximum value within 36-72 hours after administration of drug.

Clinical manifestations begin to appear in several days or weeks after administration of medicament and are characterized by nasal bleedings, bleeding of gums, pallor, hematomas around joints and buttocks, presence of blood in urine and Calais. Dorsodynias, bleeding of lips, bleeding of mucous membranes, an abdominal pain, vomiting and a petechia can be other symptoms.

further the central paralysis owing to bleedings, plentiful bleedings and a lethal outcome can arise.

Treatment. Symptomatic and maintenance therapy at overdose.

Side effects

Most frequent manifestations of side reactions of warfarin are hemorrhages and bleedings, in particular: bleeding from a nose, a pneumorrhagia, a hamaturia, bleeding of gums, appearance of bruises, vaginal bleedings, hemorrhage in an eye conjunctiva, gastrointestinal bleedings, long and plentiful bleedings after surgeries and after injuries. Bleedings can have serious character and lead to a lethal outcome, hospitalization, blood transfusion to patients who were on long-term anti-coagulative treatment.

to Store

in original packing at a temperature not above 25 °C, out of children's reach.

Expiration date - 3 years.