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Emergency Contraceptive Pills (ECPs)

What are ECPs and how do they work? I Why use ECPs? I ECPs and pregnancy I Side effects I When will I get my next period?I Using ECPs more than once I Where do I get ECPs? I Can I get ECPs in advance?

What are ECPs and how do they work?
ECPs, also known as the morning after pill, are a set of birth control pills that a woman can take after she has unprotected sex in order to prevent pregnancy. ECPs prevent pregnancy by stopping ovulation, fertilization, or implantation. The hormones in the pills temporarily disrupt hormone production in the ovaries. This will delay ovulation if it has not already occurred and will make the uterine lining unsuitable for implantation of an egg if fertilization has occurred. ECPs will not affect an existing pregnancy and they will not cause an abortion. ECPs are not the same as RU-486 (Mifepristone), the early option pill that is given to induce a medical abortion after a woman is already pregnant.

ECPs are given in 2 doses of hormonal pills, taken 12 hours apart. You will be encouraged to take the first dose as soon as possible. You will take the second dose home with you to be taken 12 hours later.

ECPs work best when the first dose is taken within 72 hours after unprotected sex, and have shown to be effective when taken up to 120 hours. The effectiveness of ECPs increases the sooner they are taken. If it is beyond 120 hours since you've had unprotected sex, call to talk to a medical provider.

Why would I want to use ECPs?
The choice to use ECPs is a personal one, and your decision may be based on the following circumstances:

  • The condom broke or slipped off
  • You forgot to take multiple birth control pills in your current cycle
  • Your diaphragm or cervical cap slipped out of place
  • Your partner didn't pull out in time or used the withdrawal method
  • You weren't using any birth control
  • You were forced to have unprotected vaginal sex
  • You were unable to remember if protection was used

How effective are ECPs in preventing pregnancy?
There are two types of ECPs: the combined ECP and the progestin-only ECP. The combined ECP, such as "Preven," has a combination of two hormones: progestin and estrogen, the same hormones that are found in birth control pills. The combined ECPs have a 75% effectiveness rate.

The second type of ECPs are the progestin-only ECPs, such as "Plan B". As the name implies, the only hormone in these pills is progestin. Because of this, you will have a lower chance of experiencing side effects. In addition, the progestin-only ECPs have a slightly higher effectiveness rate than the combination pills at 89%.

ECPs are effective if the first dose is taken within 120 hours of unprotected sex. The sooner you take the first dose of pills the better your chance of preventing pregnancy.

Will I experience any side effects after taking ECPs?
The most common side effect of the combined ECPs is nausea. Vomiting is a less common side effect. If you vomit within the first two hours of taking this ECP, the dose will have to be repeated. If you are particularly prone to nausea, speak with your medical provider and they may give you extra pills and an anti-nausea medication, like Dramamine, along with the ECP dose in order to prevent this side effect. Taking ECPs with food sometimes helps as well.

Besides the nausea and vomiting, you may also experience breast tenderness, irregular bleeding, fluid retention, dizziness, and/or headaches. These side effects subside within a day or two after taking both sets of pills.

When will my next period occur?
Taking emergency contraceptive pills may alter the timing of the your next period. Menstrual bleeding may begin a few days earlier or a few days later than would have been expected. If menstrual bleeding does not begin within 3 weeks after taking ECPs, contact your medical provider to discuss pregnancy testing or alternative reasons for not beginning a period.

What happens if I use ECPs more than once?
We don't recommend that you use ECPs as a regular form of birth control because they are not as effective as using other contraceptive methods consistently. But it is not dangerous to take ECPs repeatedly. If you do not want to become pregnant, you should talk with your medical provider about a contraceptive method that would work for you.

Where and how do I get ECPs?
ECPs are now available without a prescription for students ages 18 and over. You can go directly to Health Services Pharmacy to purchase ECPs for a cost of $31. Be sure to bring a form of ID that allows the pharmacist to verify your date of birth. On nights and weekends, ECPs are available only for the student who is in need of the pills. You can go to Health Services or call 401.863-1330 to talk with a Nurse.

Resources off-campus
ECPs are available at local pharmacies, health care clinics or a hospital emergency department. Call to inquire about hours, procedure and cost at health care facilities such as:

  • Planned Parenthood Express
    183 Angell Street, Providence: 401.383-4818
  • Planned Parenthood
    111 Point Street, Providence: 421-9620

Check the Providence phone book for phone numbers and addresses of other local pharmacies or health care facilities.

If you are away from the Providence area, or if you want more information about ECPs:

  • You can always call 1-800-230-PLAN to find the Planned Parenthood Health Center nearest you, or look up the nearest clinic on their website.
  • ECPs are also available at public health centers, private doctors, and hospital emergency rooms. You can get the name of the ECP providers nearest you by calling the emergency contraception hotline: 1-800-NOT-2-LATE or looking them up on the website.

Can I get ECPs in advance?
Yes! If you are going on an extended trip or you are worried about your contraceptive method failing, you can purchase ECPs in advance.

 

 

 


Disclaimer: Health Education is part of Health Services at Brown University. Health Education maintains this site as a resource for Brown students. This site is not intended to replace consultation with your medical providers. No site can replace real conversation. Health Education offers no endorsement of and assumes no liability for the currency, accuracy, or availability of the information on the sites we link to or the care provided by the resources listed.  Health Services staff are available to treat and give medical advice to Brown University students only. If you are not a Brown student, but are in need of medical assistance please call your own health care provider or in case of an emergency, dial 911.  Please contact us if you have comments, questions or suggestions.


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last modified: September 5, 2008

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