Most people do not need to contact a professional after use. However, you should "report" your symptoms to a doctor or seek immediate medical attention if you experience:
: If you throw up within two hours of taking the pill, it may not have been absorbed, and you should contact a professional to see if you need another dose. Plan B
: Seek help for unusually heavy vaginal bleeding that is not your period. Most people do not need to contact a professional after use
: Such as hives, difficulty breathing, or swelling of the face/throat. 3. Follow-Up for Effectiveness Plan B One-Step (1.5 mg levonorgestrel) Information - FDA it may not have been absorbed