Women's Clinic


PLAN B
(EMERGENCY CONTRACEPTIVE PILLS)

Plan B and other Emergency Contraceptive Pills (ECPs), also called the "morning after pill," are a high dose of the hormones found in regular birth control pills taken after sex has occurred.

HOW IT WORKS:

No one is certain how ECPs work. They may interfere with sperm motility, change the rhythmic contractions of the fallopian tubes, or alter the lining of the uterus so that an egg cannot implant.

HOW TO USE:

The first dose of ECPs must be taken within 72 hours after intercourse, the sooner the better. Take 1 pills, followed by 1 pill 12 hours later. If vomiting occurs within 1 hour after taking either dose of pills, they may not be effective. Call Women’s Clinic if this happens for further instructions. To reduce nausea and the risk of vomiting, take Dramamine or Benadryl 1 hour before each dose of pills.

EFFECTIVENESS

The risk of pregnancy varies during the menstrual cycle, from less than 1% to a high of 30%. ECPs reduce this risk by up to 89% when used correctly.

SIDE EFFECTS:

The most common side effect is nausea. Other side effects include breast tenderness, headache, vomiting, dizziness and fluid retention. Side effects are temporary, lasting a few days at the most.

FOLLOW-UP:

ECPs usually, but not always, cause a woman to have her period sooner than usual. If menstruation does not begin within 2 weeks after taking ECPs, return to Women’s Clinic for a pregnancy test and evaluation.

Remember, ECPs are for emergencies only. They should not be used as a regular method of birth control. If you have questions or concerns regarding other methods of birth control, one of the clinic assistants or clinicians will be happy to help you.