**4. Progestogen-only injectables**

Progestogen-only injectables (POIs) are one of the most effective contraceptive methods and are reversible, safe, and easy to use [77]. These long-acting contraceptives consist of injections of progestogen which are steadily released into the bloodstream over several weeks. Injections are given every 8–13 weeks, depending on the type of injectable [78, 79].
