The drug is taken orally after a meal.
For prophylactic purposes, adults 1/2 (50 mg) -1 (100 mg) tablet, children 1/2 (50 mg) tablets per day.
For therapeutic purposes, adults 4-5 tablets a day, children 1-3 tablets a day.
The timing of treatment depends on the nature and course of the disease.
In pregnancy and during lactation, 3 tablets a day for 10-15 days, then 1 tablet a day.