The progesterone-only pill

Abstract

The progesterone-only pill is a popular and effective contraceptive method. It is particularly useful when either an oral method of contraception is preferred or there are contraindications to the combined pill. It is taken daily without a pill-free interval, and works mainly by increasing the cervical mucus. Desogestrel also inhibits ovulation. The progesterone-only pill is useful for those needing a reliable form of contraception within a short period, as it is effective after 48 hours when ‘quick started’. This article reviews current guidelines and answers some common clinical queries.