Estrogen-gestagen realizing systems: new view on contaception (review of the literature)
Advances in hormonal contraception have led to the creation of new estrogen-progestin-releasing systems as NovaRing vaginal ring and transdermal patch EVRA. We consider their contraceptive efficacy, effect on the menstrual cycle, body weight, and metabolic parameters. It is emphasized that these systems have a number of advantages (the release of small doses of hormones, the absence of daily fluctuations in the hormone excretion and the primary effect of passing through the liver, usability, minimal systemic effects, etc.), making them the most prospective methods of contraception.

Keywords: transdermal patch EVRA, NovaRing vaginal ring, releasing systems, hormonal contraception