What you can expectBy Mayo Clinic staff
To use the morning-after pill:
- Follow the morning-after pill's instructions. If you use Next Choice, take one Next Choice pill as soon as possible and less than 72 hours after unprotected sex. Take the second Next Choice pill 12 hours later. If you use Plan B One-Step, take one Plan B One-Step pill as soon as possible and less than 72 hours after unprotected sex. If you use Ella, take one Ella pill as soon as possible and less than 120 hours after unprotected sex. Consider taking a pain reliever, such as ibuprofen (Advil, Motrin, others), at the same time.
- If you vomit within two hours after taking the morning-after pill, contact your health care provider to discuss whether to repeat the dose.
- Don't have sex until you start another method of birth control. The morning-after pill doesn't offer lasting protection from pregnancy. If you have unprotected sex in the days and weeks after taking the morning-after pill, you're at risk of becoming pregnant. Be sure to begin using or resume use of birth control.
Using the morning-after pill may delay your period by up to one week. If your period is more than one week late, take a pregnancy test.
If you have bleeding or spotting that lasts longer than a week or develop severe lower abdominal pain three to five weeks after taking the morning-after pill, contact your health care provider. These may be signs or symptoms of a miscarriage or an ectopic pregnancy — when the fertilized egg implants outside the uterus, usually in a fallopian tube.
- Ella (prescribing information). Parsippany, N.J.: Watson Pharma Inc.; 2012. http://pi.watson.com/data_stream.asp?product_group=1699&p=pi&language=E. Accessed May 7, 2012.
- Plan B One-Step (prescribing information). Pomona, N.Y.: Duramed Pharmaceuticals Inc.; 2009. http://planbonestep.com/plan-b-prescribers/index.aspx. Accessed March 7, 2012.
- Next Choice (prescribing information). Corona, Calif.: Watson Laboratories Inc.; 2009. http://mynextchoice.com/pi.asp. Accessed March 7, 2012.
- Zieman M. Emergency contraception. http://www.uptodate.com/index. Accessed March 7, 2012.
- 5. Hatcher RA, et al. Contraceptive Technology. 20th ed. New York, N.Y.: Ardent Media; 2011:113.
- Emergency contraception. American Congress of Obstetricians and Gynecologists. http://www.acog.org/For_Patients. Accessed March 7, 2012.
- Spitz IM. Mifepristone for the medical termination of pregnancy. http://www.uptodate.com/index. Accessed March 7, 2012.
- Noe G, et al. Contraceptive efficacy of emergency contraception with levonorgestrel given before or after ovulation. Contraception. 2010;81:414.
- Noe G, et al. Contraceptive efficacy of emergency contraception with levonorgestrel given before or after ovulation. Contraception. 2011;84:486.
- Gemzell-Danielsson K. Mechanism of action of emergency contraception. Contraception. 2010;82:404.
- Prabakar I, et al. Emergency contraception. BMJ. 2012;344:e1492.
- FDA approves Plan B One-Step emergency contraceptive for use without a prescription for all women of child-bearing potential. U.S. Food and Drug Administration. http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm358082.htm. Accessed June 26, 2013.