When used as directed, the Morning After™ Levonorgestrel Tablet, 1.5 mg is safe and effective. Side effects may include changes in your period, nausea, lower stomach (abdominal) pain, tiredness, headache, dizziness, and breast tenderness.
If you vomit within 2 hours of taking the medication, call a healthcare professional to find out if you should repeat the dose.
Some women may have changes in their period, such as a period that is heavier or lighter or a period that is early or late. If your period is more than a week late, you may be pregnant.
If you have severe abdominal pain, you may have an ectopic pregnancy, and should get immediate medical attention.