What do you say about emergency contraception afterwards?

As the name suggests, the morning-after emergency contraceptive is a drug that is used urgently after sexual intercourse. For example, Lansheng Meidan's levorotatory 18- norethindrone enteric-coated tablets are generally used when you don't want to have a baby, and the time should be within 72 hours. Secondly, it should be noted that healthy women of childbearing age under the age of 40 can take it orally without any special diseases. But emergency contraception is an emergency remedy for contraceptive mistakes, not an induced labor drug; Moreover, it can not be used as a routine contraceptive, and frequent use is not recommended. Reliable contraceptive measures should be taken after taking medicine and before the next menstruation.