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What should I know about levonorgestrel before taking it?

Levonorgestrel is not intended for use as a regular contraceptive. It should be used only as an emergency contraceptive, after you've had intercourse without another form of protection. Further, it must be used within 72 hours after intercourse occurs. A single-pill form of levonorgestrel emergency contraception is now available without a prescription, sold as Plan B One-Step. Levonorgestrel does not terminate a pregnancy; it helps prevent a pregnancy from occurring. It does not prevent sexually transmitted infections.

Continue Learning about Levonorgestrel

How does levonorgestrel work to prevent an unwanted pregnancy?
Stacy Wiegman, PharmDStacy Wiegman, PharmD
When taken within 72 hours of unprotected sex, levonorgestrel, a progestin hormone, prevents pre...
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Who should take levonorgestrel?
Stacy Wiegman, PharmDStacy Wiegman, PharmD
Levonorgestrel is intended for women and adolescents of menstrual age who need emergency contracepti...
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What happens if the levonorgestrel-releasing implant becomes dislodged?
Stacy Wiegman, PharmDStacy Wiegman, PharmD
There is a possibility that the levonorgestrel-releasing implant may spontaneously be expelled f...
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What is the levonorgestrel-releasing implant?
Stacy Wiegman, PharmDStacy Wiegman, PharmD
The levonorgestrel-releasing implant is an intrauterine prescription contraceptive system that r...
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.