Efficiency and acceptability of emergency contraception by Postinor levonorgestrel-only postcoital contraceptive

Abakarova P.R., Bikovskaa O.V.

Research Centre of Obstetrics, Gynecology and Perinatology, Moscow, Russia

Objectives: to estimate efficiency and an acceptability levonorgestrel-only postcoital contraceptive Postinor to women at emergency contraception.

Materials and methods: 48 women in the age of 18-39 years (middle age of 28,0 +1,7 years) addressed in the Centre for emergency contraception. All women have addressed in the Centre current of 48 hours from the moment of unprotected sexual contact. Inspection for exception of contra-indications to hormonal contraception (clinical and laboratory inspection, ultrasonic, test for pregnancy) has been lead. To all patients with the purpose of emergency contraception Postinor containing 0,75 mg levonorgestrel: first pill should be taken not later than 72 hrs since sexual contact, the 2nd pill - 12 hrs after the 1st one.

Results: efficiency of application Postinor has made 100%, cases of approach of pregnancy is noted. At 27 (57,4%) women menstruation has begun in time, shortening of a cycle for 5-7 days was marked at 7 (14,9%) women, a delay menstruation for 3-7 days - at 8 (17,0%), more than 7 days - at 5 (10,6%) women. 14 (29,9%) patients have noted more plentiful menstruation after reception Postinor. Collateral reactions were observed at 5 (10,6%) patients. From them a nausea at 4 (8,5%) patients, vomiting at 1 (2,1%). In the subsequent scheduled contraception has been recommended to all patients.

Conclusions: Postinor is highly effective and acceptable method of urgent contraception. Efficiency of Postinor with increase in time after unprotected sexual contact decreases.