Sendinor 2 is an Emergency birth control pill intended for use within 72 hours of unprotected sexual intercourse. Sendinor 2 Contraceptive is normally used to prevent pregnancy when taken within 72 hours of unprotected intercourse. It is most effective in the first 24 hours after intercourse. Side effects include Headache, Diarrhoea, Dizziness, Breast tenderness, Abdominal pains, Fatigue, Nausea, vomiting, menstrual spotting between Periods and the Early or Delayed onset of next Menstrual Period. Both Postinor 2 and Sendinor 2 perform the same function