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Molecule Description

Ulipristal Acetate is an emergency contraceptive medicine. It is used to prevent...
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    Side effects
    Precautions and Warnings
    Mode of Action
    Dietary Restrictions

Uses of Ulipristal

To avoid unwanted pregnancy after sexual intercourse where other contraceptive measures have not been used or if they have failed (e.g., rupture of a condom).

Contraindications of Ulipristal

When should one not use Ulipristal

  • An existing pregnancy
  • Allergic to Ulipristal Acetate

Side effects of Ulipristal

Common side effects of this drug are:

  • Allergic reaction like fever, chills, rash, hives, running/ stuffy nose, sneezing, breathing difficulty or swelling over your face, lips and throat
  • Weakness or dizziness
  • Nausea
  • Stomach pain
  • Headache
  • Menstrual pain

Precautions and Warnings of Ulipristal



Can I take Ulipristal during pregnancy?
Inform your doctor if you are pregnant or planning a pregnancy before taking this medicine. Ulipristal Acetate can be harmful to unborn babies. It should not be used during pregnancy.

Breast Feeding

Can I take Ulipristal while breastfeeding?
There is no evidence to prove the safety of this drug during breastfeeding. Hence it would be best if you did not breastfeed while on this treatment.


Can I drive if I have consumed Ulipristal?
If you experience (women) dizziness, drowsiness or eye problems after taking this medicine, you should avoid driving.


Can I consume alcohol with Ulipristal?
No known interaction with alcohol, consult with a doctor.

Other General Warnings

Talk to your doctor if
  • Liver disease
  • Asthma
  • Irregular menstrual periods

Mode of Action of Ulipristal

How Does It Work?

Ulipristal Acetate works by inhibiting or delaying the release of the egg from the ovary. It also prevents the fertilized egg from attaching to the uterus. It is not to be used as a regular contracept...
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Interactions of Ulipristal

Interactions with other medicines

  • Rifampicin
  • Griseofulvin
  • Bosentan
  • Topiramate
  • Anticonvulsant medicines - Phenytoin and Carbamazepine
  • Barbiturates - Butabarbital, Phenobarbital

Interactions with food items

It has interactions with grapefruit and grapefruit juice.

Dietary Restrictions of Ulipristal

No information is available on dietary restrictions while you are taking Ulipristal Acetate, consult your doctor or pharmacist for further details.

Dosage of Ulipristal


Symptoms of overdose may be nausea, stomach pain, headache, fatigue, dizziness, and menstrual pain. Call your doctor immediately if you overdose.

Missed a Dose

It has no dosing regimen because it is used only when needed.

Content Details


Dr. Arpit Verma

MBBS, MD (Pharmacology)


Dr. Ritu Budania

MBBS, MD (Pharmacology)

Frequently Asked Questions (FAQs)


Q: What should be discussed with my healthcare expert before I start the medication of Ulipristal Acetate?

A: You must inform your doctor if you had your last menstrual cycle more than four weeks ago. If you have a history of tubal (ectopic) pregnancy. If you have an allergy to Ulipristal Acetate. Inform your doctor if you are taking any other medicines, supplements or herbs.

Q: What should I avoid while taking Ulipristal Acetate?

A: Make sure you use a condom to protect yourself from contracting sexually transmitted diseases like HIV/ AIDS since Ulipristal Acetate does not protect one from these infections.

Q: When and how to consume the medicine?

  • You must take medicine exactly the way it is prescribed by the physician
  • Follow the instructions mentioned on the prescription label
  • The Ulipristal Acetate tablet can be taken with or without food
  • It must be taken within five days (120 hours) of sexual intercourse, during any time of your cycle
  • If you vomit within 3 hours of taking medicine, inform your doctor and let him/ her to advise you regarding a repeat dose
  • Ulipristal Acetate decreases the efficacy of hormonal contraceptives like contraceptive pills, vaginal rings, skin patches, injections, implants. Hence use a barrier form of birth control method (cond...
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Q: Will this drug affect my future fertility?

A: No. This drug won’t affect your future fertility.
Last Updated on: 05 Oct 2020 | 10:47 PM (IST)

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