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Care365 medication guide
Levonorgestrel
Reduces pregnancy risk after contraceptive failure or unprotected intercourse.
Drug information
Uses, directions and safety information for Levonorgestrel.
What it is used for
Reduces pregnancy risk after contraceptive failure or unprotected intercourse.
How to use it
Take promptly; the referenced label specifies within 72 hours. After that, urgently discuss other options. Vomiting soon after dosing needs advice.
Before use
Does not end an existing pregnancy or protect subsequent intercourse.
Possible side effects
Nausea, cramps, fatigue and menstrual changes.
When to get medical help
Severe lower abdominal pain or a period over a week late requires assessment.
Medicines and interactions
Enzyme-inducing medicines may reduce effectiveness.
Pregnancy and breastfeeding
Not useful in established pregnancy; breastfeeding counselling is available.
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.
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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.
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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 Levonorgestrel, 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 Levonorgestrel
What is Levonorgestrel used for?
Reduces pregnancy risk after contraceptive failure or unprotected intercourse.
How should I use Levonorgestrel?
Take promptly; the referenced label specifies within 72 hours. After that, urgently discuss other options. Vomiting soon after dosing needs advice.
What side effects can Levonorgestrel cause?
Nausea, cramps, fatigue and menstrual changes.
When should I get medical help while using Levonorgestrel?
Severe lower abdominal pain or a period over a week late requires assessment.
Can Levonorgestrel interact with other medicines?
Enzyme-inducing medicines may reduce effectiveness.
What should I know about Levonorgestrel during pregnancy or breastfeeding?
Not useful in established pregnancy; breastfeeding counselling is available.
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.
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