The pill is an oral contraceptive, which is effective, but you need to take it regularly, on time and in the right amount to avoid missing doses, or taking it by mistake. The correct use of contraceptives is nearly 100 percent effective, but there are adverse effects. Momofuron is a compound short-acting oral contraceptive, composed of estrogen, progesterone, a composite preparation, you need to take the drug on the first day of menstruation for twenty-one consecutive days, stop taking the drug seven days after the start of the second cycle of the drug, if there is a leakage of service should be made up for the service as soon as possible, but we need to be wary of the possibility of pregnancy, if you miss the service of two tablets to make up for the service, at the same time, to add other contraception, leakage of the service of three tablets, the drug should be discontinued in a timely manner, to wait for bleeding to start the next cycle of the drug. Start taking the next cycle. The main function of the contraception is to inhibit ovulation.