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Levonorgestrel

Published: July 26, 2026Updated: July 26, 2026

Next Choice One Dose is an emergency contraceptive medication containing the hormone levonorgestrel. It is designed to be taken as a single dose within 72 hours after unprotected intercourse or contraceptive failure (such as a broken condom) to help prevent an unintended pregnancy. This medication is intended for occasional use only and is not a regular method of birth control.

Quick summary

A single-dose emergency contraceptive pill used to help prevent pregnancy after unprotected sex or contraceptive failure.

Medically reviewed by WellAlly Editorial TeamLast reviewed July 26, 2026Editorial policy

Key facts at a glance

RxNorm
1303925
Generic
Next Choice One Dose
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.

Next Choice One Dose is used to prevent pregnancy when taken as emergency contraception following unprotected sexual intercourse, contraceptive failure (e.g., broken condom, missed birth control pills), or sexual assault. It is not indicated for termination of an existing pregnancy and should not be used as routine contraception.

As a progestin-only emergency contraceptive, it primarily works by delaying or inhibiting ovulation to prevent fertilization. It may also alter the cervical mucus and fallopian tube motility to reduce the chance of sperm meeting an egg. Effectiveness decreases the longer someone waits to take it after unprotected intercourse.

This medication is most effective when taken as soon as possible after unprotected sex. It is not effective if pregnancy has already occurred and will not affect an existing pregnancy. Common side effects may include nausea, abdominal pain, fatigue, headache, and menstrual changes. It does not protect against sexually transmitted infections (STIs). This medication should not be used if pregnancy is already confirmed, and women with certain medical conditions should consult a healthcare provider before use.

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.

Medical Disclaimer

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