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- What is levonorgestrel-oral, and how does it work (mechanism of action)?
- What brand names are available for levonorgestrel-oral?
- Is levonorgestrel-oral available as a generic drug?
- Do I need a prescription for levonorgestrel-oral?
- What are the uses for levonorgestrel-oral?
- What are the side effects of levonorgestrel-oral?
- What is the dosage for levonorgestrel-oral?
- Which drugs or supplements interact with levonorgestrel-oral?
- Is levonorgestrel-oral safe to take if I'm pregnant or breastfeeding?
- What else should I know about levonorgestrel-oral?
What is levonorgestrel-oral, and how does it work (mechanism of action)?
- Levonorgestrel (Plan B) is emergency contraception (commonly called the morning after pill) that is used as backup contraception to prevent pregnancy when taken within 72 hours after unprotected sex or when birth control fails.
- Levonorgestrel is a progestin. Progestins are hormones used in many birth control pills. Although levonorgestrel and similar emergency contraception pills contain a higher dose of levonorgestrel than birth control pills, they work in a similar way to prevent pregnancy, mainly by stopping the release of an egg from the ovary. Additionally, levonorgestrel also may prevent fertilization of an egg (the uniting of the sperm with the egg) or prevent the attachment (implantation) of a fertilized egg to the uterus (womb).
- Emergency contraception pills do not work in women who are already pregnant and should not be taken during pregnancy.
- The FDA approved levonorgestrel in July 1999.
What brand names are available for levonorgestrel-oral?
Plan B One-Step, Next Choice One Dose, My Way
Is levonorgestrel-oral available as a generic drug?
GENERIC AVAILABLE: Yes
Do I need a prescription for levonorgestrel-oral?
No. Most emergency contraception pills can be purchased over-the-counter or OTC (without a prescription). However, some age restrictions may apply.
What are the uses for levonorgestrel-oral?
Emergency contraception pills are used to help prevent pregnancy after unprotected sex or when birth control methods fail. Emergency contraception is a backup method of preventing pregnancy and should not be used routinely.
What are the side effects of levonorgestrel-oral?
Side effects include:
- Menstrual changes
- Lower stomach (abdominal) pain
- Breast pain
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Need help identifying pills and medications?
Use the pill identifier tool on RxList.