Side Effects
Side effects associated with the use of EC usually taper off within a day or two.
- Half of the women who take the combination pills feel sick to their stomachs, but only for about 24 hours.
- Less than one out of five women vomit with combination pills.
- The risk of nausea and vomiting is much lower with progestin-only EC - less than one in four women feel sick to their stomachs.
- Breast tenderness, irregular bleeding, dizziness, and headaches may also occur.
There have been no reports of serious complications among the millions of women who have used EC.
Frequent use of EC may cause periods to become irregular and unpredictable.
The side effects of anti-nausea medication may include drowsiness. Please follow the precautions on the package insert.