Levonorgestrel
Morning After is a brand-name emergency contraception product designed to help prevent pregnancy after unprotected sexual intercourse or contraceptive failure. It is intended for use by individuals of reproductive age who require backup contraception within a critical time window. This medication should not be used as a regular form of birth control.
Morning After is an emergency contraceptive taken after unprotected sex to help prevent unwanted pregnancy.
Key facts at a glance
- RxNorm
- 1657612
- Generic
- Morning After
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Used to help prevent pregnancy when taken shortly after unprotected sexual intercourse, contraceptive failure (such as a broken condom or missed birth control pills), or sexual assault. It is not intended to terminate an existing pregnancy and should not be used as routine contraception.
Emergency contraception typically works by temporarily delaying or inhibiting ovulation, or by altering the cervical mucus to help prevent fertilization. The exact mechanism can vary depending on the active ingredient and timing within the menstrual cycle. It is most effective when taken as soon as possible after intercourse.
This medication is most effective when taken within the first 24-72 hours after unprotected intercourse, with effectiveness decreasing over time. It does not protect against sexually transmitted infections and should not be used if pregnancy is already suspected or confirmed. Side effects may include nausea, abdominal pain, fatigue, or changes in menstrual bleeding. Users should consult a healthcare provider if they have questions about whether this medication is appropriate for their individual circumstances.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy