Pharmacies offer emergency contraceptives with different dosages.
• In some preparations - 1 tablet, which contains 1.5 mg of levonorgestrel. So the woman immediately receives the entire dose of the hormone necessary to block ovulation.
• In other preparations - 2 tablets, which contain 0.75 mg of active ingredient. They are accepted with an interval of no more than 12 hours. That is, you should try to drink the first pill immediately after intercourse, and the second - after 12 hours. This option avoids an allergic reaction (it is possible for any drug).