Cerazette is a popular contraceptive pill that helps prevent pregnancy. It is a mini-pill that contains the active ingredient desogestrel, a progestogen hormone. The mini-pill works by thickening the mucus in the cervix, making it difficult for sperm to reach the egg. It also changes the lining of the uterus to prevent the implantation of a fertilized egg. Cerazette is over 99% effective in preventing pregnancy when taken correctly and is suitable for women who cannot take estrogen-containing contraceptive pills. It is taken daily, without a break, to provide continuous protection against pregnancy.