Introduction. Most of today's global problems are due to increased population. It is important to create new, more effective birth control methods that are simple to use, have few side effects, and don't need to be constantly monitored or applied before every sexual act. The solution to this problem is to use long-acting contraceptives that do not require such daily activity and only require a small amount of action during coitus. However, creating a novel form of contraception is extremely difficult. New intrauterine drug delivery products are intended to offer better birth control options, better methods for the prevention and treatment of gynecological conditions, and higher levels of safety, acceptability by users, compliance, and quality of life for women. A drug with progestogenic activity is released under controlled circumstances over an extended period of time and at a concentration necessary for contraception using an intrauterine drug delivery system ...