Ulipristal (By mouth)


Ulipristal Acetate (ue-li-PRIS-tal AS-e-tate)

Prevents pregnancy. This medicine is an emergency contraceptive pill.

Brand Name(s)


When This Medicine Should Not Be Used

How to Use This Medicine


  • Take 1 tablet as soon as possible within 5 days (120 hours) after unprotected sex or after failure of another birth control method.
  • This medicine is for occasional use as an emergency birth control. It should not replace your regular birth control method. This medicine may be taken at any time during your monthly period, but do not use this medicine more than 1 time in the same monthly period.
  • If you vomit within 3 hours of taking this medicine, call your doctor right away. Your doctor may prescribe another tablet for you.
  • Read and follow the patient instructions that come with this medicine. Talk to your doctor or pharmacist if you have any questions.

How to Store and Dispose of This Medicine

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep the tablet in the blister card inside the original box until you are ready to use it. Do not use this medicine if the package is broken or torn.
  • Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.
  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

Drugs and Foods to Avoid

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

  • Make sure your doctor knows if you are using bosentan (Tracleer®), carbamazepine (Tegretol®), dabigatran etexilate (Pradaxa®), digoxin (Lanoxin®), felbamate (Felbatol®), griseofulvin (Grisactin®), itraconazole (Sporanox®), ketoconazole (Nizoral®), oxcarbazepine (Trileptal®), phenobarbital (Luminal®), phenytoin (Dilantin®), rifampin (Rifadin®, Rimactane®), topiramate (Topamax®), or St. John's wort.

Warnings While Using This Medicine

  • Although you are using this medicine to prevent pregnancy, you should know that using this medicine while you are pregnant could harm an unborn baby. Your doctor may give you a pregnancy test before you use this medicine. If you think you have become pregnant while using the medicine, tell your doctor right away.
  • Call your doctor right away if you have severe lower abdominal or stomach pain 3 to 5 weeks after taking this medicine. You may have a pregnancy outside of the uterus (ectopic pregnancy). An ectopic pregnancy can be a serious and life-threatening condition.
  • This medicine may make your next monthly period early or late by a few days. If your next period is more than 1 week late, check with your doctor right away for a pregnancy test.
  • Birth control pills or patch may not work as well while you are using this medicine. Use birth control pills or patch together with a second form of birth control, such as condoms, during any other times that you have sex in the same monthly period you used this medicine.
  • This medicine will not protect you from HIV/AIDS or other sexually transmitted infections (STIs).

Possible Side Effects While Using This Medicine

Call your doctor right away if you notice any of these side effects:

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
  • Heavy bleeding, cramps, or pain
  • Severe abdominal or stomach pain

If you notice these less serious side effects, talk with your doctor:

  • Headache, dizziness
  • Nausea, stomach pain
  • Tiredness or weakness

If you notice other side effects that you think are caused by this medicine, tell your doctor

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088

Version Info

  • Last reviewed on 8/4/2014

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