It is safe and effective when used as directed.
Some women may experience side effects, including:
- a period that’s lighter, heavier, early, or late
- nausea
- lower abdominal cramps
- tiredness
- headache
- dizziness
- breast tenderness
- vomiting
Some women taking PostDay One-Step®, when used as directed, may have changes in their period, such as spotting or bleeding before their next period. If your period is more than a week late, it’s possible you might be pregnant. Get a pregnancy test and follow up with your healthcare professional. If you vomit within 2 hours of taking PostDay One-Step®, talk to your healthcare professional to find out if you should repeat the dose.