FIELD: medicine, endocrinology, pharmacy.
SUBSTANCE: invention relates to a pharmaceutical composition comprising drospirenone as the first active agent in the amount corresponding to daily dose from 2 to 4 mg in administration of the composition, and ethynylestradiol as the second active agent in the amount corresponding to daily dose from 0.01 to 0.05 mg in combination with one or some pharmaceutically acceptable vehicles or additives. Drospirenone as a component of the pharmaceutical composition is in the finely divided form. The preparation comprises some separately packages and individually taken medicinal units placed in the unit package and designated for oral administration for at least 21 days at a time and indicated daily medicinal units comprise the combination of drospirenone and ethynylestradiol. The preparation can comprise 7 and less daily doses no containing any active agent or containing ethynylestradiol only. The combination of ethynylestradiol and drospirenone provides the safety contraceptive activity due to using the maximal dose of drospirenone being without adverse effects, in particular, excessive diuresis.
EFFECT: improved and valuable properties of combination.
34 cl, 5 dwg, 5 ex
