Cerazette / Cerelle / Zelleta / Generic Desogestrel are all different versions of the same “mini pill”. They all contain the active ingredient desogestrel 75mg which is a type of synthetic progestogen. If taken on day one of your menstrual cycle, it will provide immediate protection from pregnancy.
Progestrogen only pills (POP) differ from combined oral contraceptives in that they do not contain oestrogen. This makes the mini pill suitable for use by women who:
- Are over 35 years old
- Are at risk of cardiovascular issues associated with taking synthetic oestrogens
- Are allergic to synthetic oestrogens
All of the above-mentioned brands are clinically equivalent. Cerazette was the first patented brand however they all work equally as well.
How does Cerazette / Cerelle / Zelleta / Generic Desogestrel work?
Mini-pills prevent pregnancy by:
- Thinning the lining of the womb by producing less cervical fluid. This stops sperm from entering the uterus.
- Preventing ovulation (release of an egg) – high concentrations of synthetic progestogens prevent this.
The above two effects make Cerazette and the other desogestrel containing mini-pill’s 99% effective at preventing pregnancy if taken properly.