Combined<unk>  contraceptives (CICs) are a form of hormonal<unk><unk>  for women. They consist of monthly injections of combined formulations containing an estrogen and a progestin to prevent pregnancy. CICs are different from progestogen-only<unk>  contraceptives (POICs), such as depot medroxyprogesterone acetate (DMPA; brand names Depo-Provera, Depo-SubQ Provera 104) and norethisterone enantate (NETE; brand name Noristerat), which are not combined with an estrogen and are given once every two to three months instead of once a month. Hormonal contraception works primarily by preventing ovulation, but it may also thicken the cervical mucus inhibiting sperm penetration. Hormonal contraceptives also have effects on the endometrium, that theoretically could affect implantation.
Combined injectable birth control
Injectable birth control
Long-acting reversible contraception
Heat-based contraception
Male contraceptive
Combined hormonal contraception
Extended cycle combined hormonal contraceptive
Intrauterine device