Plan B - also known as the "morning after pill" is an emergency contraceptive that can be used to prevent pregnancy following unprotected intercourse or a known or suspected contraceptive failure. For best results, the first tablet should be taken as soon as possible within 72 hours of intercourse.
When Plan B is taken within 72 hours of unprotected intercourse, Plan B can reduce the risk of pregnancy by 89 percent after a single act of unprotected sex. Effectiveness declines as the interval between intercourse and the start of treatment increases.
Learn more about Plan B.
ABOUT THE AUTHOR
J. Ratliff is the author of several health related articles. He now has a website in the works at
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