Choose your concern
Explore the condition guides and available assessment options.
Care365 medication guide
Ulipristal acetate
Reduces pregnancy risk after unprotected intercourse or contraceptive failure.
Drug information
Uses, directions and safety information for Ulipristal acetate.
What it is used for
Reduces pregnancy risk after unprotected intercourse or contraceptive failure.
How to use it
Take as soon as possible within five days. Vomiting within three hours may require another dose; contact a pharmacist.
Before use
Not for an established pregnancy or ongoing contraceptive protection.
Possible side effects
Headache, nausea and abdominal discomfort.
When to get medical help
Severe abdominal pain or a period more than a week late requires pregnancy assessment.
Medicines and interactions
Enzyme inducers and progestin contraceptives can affect effectiveness; obtain a specific contraception restart and backup plan.
Pregnancy and breastfeeding
The Canadian source advises a breastfeeding interruption; discuss current product guidance before use.
Missed doses, storage and accidental exposure
Follow your own product’s missed-dose instructions. If you are unsure, ask a pharmacist before taking an extra dose. Contraceptives, injections and modified-release medicines may need a specific plan.
Keep the original packaging and follow its storage, expiry and disposal instructions. Keep medicines away from children and pets. Ask about refrigeration, after-opening limits and safe sharps disposal when relevant.
For suspected overdose or accidental swallowing, contact poison control or urgent medical care promptly. Call emergency services for breathing difficulty, collapse or a seizure.
Care that starts with a conversation
How Care365 can help
Explore care for your symptoms and prepare for a conversation about treatment. Your healthcare professional will consider your history, current medicines and whether an assessment or referral is appropriate.
Your next steps
Know what to prepare and what to discuss.
Share your history
Prepare your symptoms, allergies, medication list and treatment questions.
Discuss your options
A healthcare professional assesses which care or referral is appropriate.
Plan your follow-up
Follow the advice you receive about treatment, monitoring and next steps.
Related condition guides
Learn about concerns where this medication may be discussed. Treatment depends on your individual assessment.
Prescription renewal and medication review
For a review of Ulipristal acetate, have your current dose, reason for treatment, remaining supply, benefits, side effects and pharmacy details ready. Ask your pharmacist or prescriber whether a renewal assessment is available and appropriate. A prescription or renewal is not guaranteed.
Questions about Ulipristal acetate
What is Ulipristal acetate used for?
Reduces pregnancy risk after unprotected intercourse or contraceptive failure.
How should I use Ulipristal acetate?
Take as soon as possible within five days. Vomiting within three hours may require another dose; contact a pharmacist.
What side effects can Ulipristal acetate cause?
Headache, nausea and abdominal discomfort.
When should I get medical help while using Ulipristal acetate?
Severe abdominal pain or a period more than a week late requires pregnancy assessment.
Can Ulipristal acetate interact with other medicines?
Enzyme inducers and progestin contraceptives can affect effectiveness; obtain a specific contraception restart and backup plan.
What should I know about Ulipristal acetate during pregnancy or breastfeeding?
The Canadian source advises a breastfeeding interruption; discuss current product guidance before use.
Sources and product information
Sources checked 2026-09-08. Safety sections are highlights; consult the full product information for complete warnings and instructions.
Check the Canadian Drug Product Database by product name or DIN for current product information.
← Browse all medication guides