Injectables
- Progestogens alone or in combination with oestrogen are used by females as injections or implants under skin.
- Their mode of action is similar to that of pills and their effective periods are much longer.
- Progestogens or progestogen-oestrogen combinations and IUDs are used within 72 hours of coitus as emergency contraceptives.
- It avoids pregnancy due to rape or casual intercourse.