Contraceptive Jin Yuting and Yuting are both levonorgestrel tablets with different content and usage. 1. The composition is the same, the content is different: both are levonorgestrel, belonging to the progestin. The former 1.5 mg per tablet, the latter 0.75 mg per tablet. 2. different usage: all belong to the emergency contraceptive pill, generally need to be taken within 72 hours after intercourse, the sooner you take the probability of its successful contraception is higher. 1.5 mg of the dosage form only need to take 1 tablet, 0.75 mg of the dosage form need to take two tablets, usually in the taking of the first tablets, 12 hours after the interval, you need to take the second tablets again. Both are recommended to be taken within 72 hours of intercourse, after which they are ineffective, and the closer the time of intercourse, the more effective they are. Both have some adverse effects, mainly menstrual disorders, mostly delayed menstruation. They should not be used as regular contraceptives, but only as emergency contraceptives for short periods of time when contraception fails. Because of the side effects, it is best to use them under medical supervision.