Levonorgestrel
Preventeza is an emergency contraceptive medication used to prevent pregnancy after unprotected sexual intercourse or contraceptive failure. It is intended for use by women of reproductive age as a backup method of contraception and should not be used as a regular form of birth control.
Preventeza is an emergency contraceptive pill used to prevent unintended pregnancy when taken shortly after unprotected sex or contraceptive failure.
Key facts at a glance
- RxNorm
- 2001346
- Generic
- Preventeza
- 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.
Preventeza is indicated for emergency contraception to prevent pregnancy following unprotected sexual intercourse or known or suspected contraceptive failure (such as condom breakage or missed birth control pills). It is not intended for use as a regular contraceptive method.
As an emergency contraceptive, Preventeza works primarily by inhibiting or delaying ovulation, which prevents fertilization from occurring. It may also alter the uterine lining to potentially prevent implantation, though this mechanism is not well-established.
Preventeza should be taken as soon as possible after unprotected intercourse for maximum effectiveness. It is less effective in women with a higher BMI and does not protect against sexually transmitted infections. This medication is typically available over-the-counter without a prescription, but consultation with a healthcare provider is recommended for appropriate use and to discuss other contraceptive options for ongoing protection.
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