Hormonal contraception using the oral depot preparation, Deposiston
Vasilev, D.
Akusherstvo i Ginekologiia 17(2): 147-151
1978
ISSN/ISBN: 0324-0959 PMID: 350070 Document Number: 505659
The efficacy of a new contraceptive delayed-action preparation, Deposiston is reviewed. Deposiston is the estrogen-progestin preparation with predominant estrogen activity. The estrogen and progestin eomponents of the preparation are ehtinyl estradiol and norethindrone acetate, respectively. Contraceptive effect is associated with gonadotropic stimulation by estrogen component, while progestin component provides the thermogenic effect. Mutagenicity, carcinogenicity, and toxicity tests show safety of Deposiston. Clinical trials of Deposiston in 815 women over the period of 16,207 cycles (18.1 cycles/woman) confirm contraceptive efficacy of the preparation: pregnancy occurred in only 12 women. Side effects of Deposiston include nausea (16.06%), vomiting (3.7%), headache (5.08%), and vaginal discharge (11.86%). Each Deposiston package contains 3 white estrogen tablets and 2 red progestin tablets. A woman starts to take Deposiston on day 4 of the cycle: white tablets are taken on days 4, 11, and 18 and 2 red tablets are taken on day 25. On day 2-7 after the red progestin tablets, the woman experiences hemorrhage. Average duration of and the amount of blood loss during the hemorrhage do not differ from those during the normal menstruation. Deposiston is indicated for women with recurrent uterine hemorrhages, gastrointestinal disorders, and decreased libido. The preparation is contraindicated for adolescents younger than 16 years of age, for women with hormonal active tumors, thromboembolism, chronic liver diseases, and idiopathic jaundice.