Health & Sex
Emergency Contraception
Emergency contraception -- also called postcoital contraception -- is a form of birth control that may be used by women who have had unprotected sex or if a contraceptive method fails. The treatment generally is reserved for emergency situations and is not a regular method of birth control. Emergencies include being raped, having a condom break or slip off during sex, missing two or more birth control pills during a monthly cycle, and having unplanned sex. Emergency contraception is not a form of abortion; it is used to prevent a pregnancy, not end one. Emergency contraception does not protect against sexually transmitted diseases. It is not RU-466, the medication used to induce abortions.
Plan B One-Step is a specifically packaged emergency contraception.
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- If you are 17 or older, you can get Plan B from a pharmacist, without a prescription. Bring proof of your age.
- If you are younger than 17, you can get Plan B with a prescription from a doctor.
Ella is a non-hormonal pill. It contains ulipristal, a non-hormonal drug that blocks the effects of key hormones necessary for conception. It is available only by prescription.
How Does It Work?
Plan B One-Step emergency contraception may prevent pregnancy by temporarily blocking eggs from being produced, by stopping fertilization, or keeping a fertilized egg from becoming implanted in the uterus. Plan B One-Step is taken in one dose with one pill. The sooner you take the Plan B pill, the more effective it is. The pill should be taken as soon as possible -- within 72 hours of unprotected intercourse. When Plan B is taken as directed, it can reduce the chance of pregnancy by up to almost 90%.
Ella can be taken up to 120 hours after sex. It is taken as one tablet in one dose.
An IUD can be inserted to prevent pregnancy within five to seven days after unprotected intercourse.
How Effective Is Emergency Contraception?
If Plan B is taken as directed after unprotected sex it will decrease the chances of a pregnancy occurring. About 7 out of every 8 women who would have gotten pregnancy will not become pregnant.
In two reported studies, Ella significantly reduced the pregnancy rate from an expected rate of 5.5% and 5.6% to 2.2% and 1.9%, respectively. In a pooled analysis of the data, the effectiveness did not fade for 120 hours after unprotected sex.
An IUD can be up to 99% effective when inserted within 5 to 7 days after unprotected intercourse.
Where Can I Get Emergency Contraception?
ECP are available at Planned Parenthood; college, public, and women's health centers; private doctors; and some hospital emergency rooms.
Some doctors will prescribe ECP over the phone and call the prescription in to a pharmacy. Plan B One-Step is available without a prescription to women 17 and older.
WebMD Medical Reference

