norgestrel

Use for women to reduce chance of pregnancy after unprotected sex (if a contraceptive failed or if you did not use birth control)

Warnings Allergy alert: Do not use if you have ever had an allergic reaction to levonorgestrel Sexually transmitted diseases (STDs) alert: This product does not protect against HIV/AIDS or other STDs Do not use if you are already pregnant (because it will not work) for regular birth control Ask a doctor or pharmacist before use if you are taking efavirenz (HIV medication) or rifampin (tuberculosis treatment) or medication for seizures (epilepsy). These medications may reduce the effectiveness of levonorgestrel. When using this product you may have menstrual changes tiredness breast pain nausea headache vomiting lower stomach (abdominal) pain dizziness