Hi, Cerazette tablet contains desogestrel which is used as an oral contraceptive pill to prevent pregnancy. It helps to prevent the release and fertilization of the egg by sperm. It is safe for most of women, including breastfeeding mothers. Side effects of Cerazette are nausea, vomiting, headache, weight gain, irregular menstrual cycles, weight gain, acnes, mood swings, depression, breast tenderness and enlargement, reduced sex drive, abdominal pain, GIT upset, vaginal bleeding, vaginal discharge, symptoms of allergic reactions like rashes, itching, swelling of lips, tongue, throat or any part of the body like vulva, breathing difficulties, wheezing, dizziness etc. If you suffer from these side effects for long or bother you, you should consult your promptly for medical help. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Zubayer Alam, General And Family Physician