HOW PLAN B ONE-STEP® WORKS
Plan B One-Step® is one tablet that contains levonorgestrel, a hormone that has been used in many birth control pills for several decades. Plan B One-Step® contains a higher dose of levonorgestrel than birth control pills, but works in a similar way to help prevent pregnancy.It works mainly by:
- Stopping the release of an egg from the ovary
- Preventing fertilization of an egg (the uniting of sperm with the egg)
- Preventing attachment (implantation) to the uterus (womb)
But remember, Plan B One-Step® should not be used as a regular birth control method,
because it's not as effective.