MedDataToolLeader Emergency Contraceptive Levonorgestrel
Generic: Levonorgestrel
Progesterone Congeners✓ FDA-verified
View full FDA label ↗Leader Emergency Contraceptive Levonorgestrel is a medication used by women to help prevent pregnancy after unprotected sex or contraceptive failure. It works by stopping or delaying the release of an egg from the ovary. You should take it as soon as possible, ideally within 72 hours after the incident, and the dose is just one pill. A key warning is that you should not use it if you are already pregnant, as it will not be effective then. Additionally, if you are taking medications like efavirenz for HIV, it may reduce how well levonorgestrel works, so it's important to talk to a healthcare professional before using it.
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Uses
- Reduce chance of pregnancy after unprotected sex.
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Dosage
Take as soon as possible within 72 hours after unprotected sex.
The sooner you take it, the better it will work.
If you vomit within 2 hours after taking it, call a healthcare professional.
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Side effects
Common
Menstrual changesTirednessDizzinessNauseaHeadacheBreast painLower stomach painVomiting
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Warnings
⚠ Important warnings
- Do not use if allergic to levonorgestrel.
- Does not protect against HIV/AIDS or other STDs.
- Do not use if already pregnant.
- Ask a doctor if taking efavirenz, rifampin, or seizure medications.
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Drug interactions
- Efavirenzmay reduce effectivenessCaution
- Rifampinmay reduce effectivenessCaution
Ask about this product
Answers pulled from the FDA label only.
Medical Disclaimer: This content is provided for informational and educational purposes only and is not intended as medical advice. Always consult a qualified healthcare provider before taking any medication.
Data Source: Publicly available drug labeling information from the U.S. Food and Drug Administration (FDA).
Data Source: Publicly available drug labeling information from the U.S. Food and Drug Administration (FDA).