Progestogen-only injectable contraceptive

Progestogen-only injectable contraceptives (POICs) are a form of hormonal contraception and progestogen-only contraception that are administered by injection and providing long-lasting birth control. As opposed to combined injectable contraceptives, they contain only a progestogen without an estrogen, and include two progestin preparations: Medroxyprogesterone acetate (brand names Depo-Provera, Provera, Depo-subQ Provera 104) – 150 mg (intramuscularly) or 104 mg (subcutaneously) every 3 months Norethisterone enanthate (brand names NET EN, Noristerat, Norigest, Doryxas) – 200 mg (intramuscularly) every 2 months == Mechanism of action == These POICs work by providing an influx of progesterone into the female body.

Source: Wikipedia — Progestogen-only injectable contraceptive (CC BY-SA 4.0)