A drug is usually prescribed by a doctor when its benefits outweigh the risks. The common side effects of Loestrin are mild nausea,
vomiting, bloating, stomach cramps; breast tenderness or swelling, nipple discharge; vaginal itching or discharge; or changes in your menstrual periods, weight change, decreased sex drive etc.It is not necessary that all women will experience them. If you are anxious discuss it with your gynecologist. Take care and regards!