What are common side effects of the Plan B pill?

WebMD discusses what Plan B is, why it's used, and its effectiveness and side effects. ... a one-dose regimen: you take one pill. The pill contains 1.5 milligrams of levonorgestrel, which is used in lower doses in many birth control pills. ... It may also come earlier or later than is normal for you. read more

Common side effects of Plan B include: nausea, vomiting, abdominal or stomach pain, tiredness, dizziness, changes in menstrual periods, breast pain or tenderness, diarrhea, or ; headache. Tell your doctor right away if you have any serious side effects of Plan B including: severe lower stomach pain (especially 3 to 5 weeks after taking Plan B). read more

Plan B Side Effects: The Statistics. Most women who take Plan B will experience at least one of the more common Plan B side effects. There are women who will experience none and women who will experience all of them. Making an informed decision means knowing what you could potentially be in for. read more

Includes common and rare side effects information for consumers and healthcare professionals. Learn about the potential side effects of Plan B (levonorgestrel). Includes common and rare side effects information for consumers and healthcare professionals. read more