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Current Issues: January |
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| How the pill works |  |
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Levonelle uses the hormone progesterone to upset the delicate balance in the body which allows the recently-fertilised egg to implant in the womb. The womb sheds its lining which would sustain the embryo, and menstruation occurs early. After conception, there is a 72-hour window in which an embryo may implant. The morning after pill can work only if it is taken within this time. In the first 2 days after conception, it is 95% effective. This drops to 58% within 48 to 72 hours after unprotected sex. If the drug works, the embryo rapidly breaks down. |
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