There are two types of long-acting contraceptive pills for women: oral and injectable formulations. The oral long-acting contraceptive pill is made of long-acting estrogen and synthetic progestin, mainly the following: compound ethinyl estradiol monthly tablet, compound 16 methyl chlordegestrel monthly tablet, compound 18 methyl norethindrone monthly tablet, etc.; while the injectable preparations mainly include compound megestrol injection, megestrol acetate contraceptive injection, compound hydroxyprogesterone caproate injection, mono-progestin contraceptive injection, etc. Long-acting contraceptive pills can generally be taken orally or injected once for about a month, with a high contraceptive rate, but any kind of contraceptive pill will cause more or less unnecessary harm to the body, so it is recommended to take other non-drug contraceptive methods.