Drospirenon ve etinilestradiol ve Etonogestrel ve etinilestradiol etkileşimi

WARNING: CIGARETTE SMOKING AND SERIOUS CARDIOVASCULAR EVENTS Cigarette smoking increases the risk of serious cardiovascular events from combination hormonal contraceptive (CHC) use.

Cigarette smoking increases the risk of serious cardiovascular events from combination hormonal contraceptive (CHC) use.

Effects of CHCs on Other Drugs CHCs containing ethinyl estradiol may inhibit the metabolism of other compounds (e.g., cyclosporine, prednisolone, theophylline, tizanidine, and voriconazole) and increase their plasma concentrations.

Consider an alternate contraceptive method for women with uncontrolled dyslipidemia.

In these studies, which were required or sponsored by regulatory agencies, Etonogestrel/Ethinyl Estradiol Vaginal Ring users had a risk of VTE similar to Combined Oral Contraceptives (COCs) users (see Table 1 for adjusted hazard ratios).

COCs containing DRSP may be associated with a higher risk of venous thromboembolism (VTE) than COCs containing levonorgestrel or some other progestins.

Table 2: Estimates (Hazard Ratios) of Venous Thromboembolism Risk in Current Users of Yasmin Compared to Users of Oral Contraceptives that Contain Other Progestins Epidemiologic Study (Author, Year of Publication) Population Studied Comparator Product (all are low-dose COCs; with ≤ 0.04 mg of EE) Hazard Ratio (HR) (95% CI) i3 Ingenix (Seeger 2007) Initiators,…

Effects of Other Drugs on Combined Oral Contraceptives Substances diminishing the efficacy of COCs: Drugs or herbal products that induce certain enzymes, including cytochrome P450 3A4 (CYP3A4), may decrease the effectiveness of COCs or increase breakthrough bleeding.