How effective is Plan B?
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4 min read
Plan B, containing levonorgestrel, can reduce the risk of pregnancy by 89% when taken within 72 hours of unprotected sex, though its effectiveness decreases over time. This emergency contraceptive is not a substitute for regular birth control and is designed for situations where contraception fails or is not used. Understanding the factors that influence its efficacy is key for making informed decisions about sexual health.