Low : Postinor 2 is most effective when the first tablet is taken within 72 hours after intercourse and the second tablet exactly 12 hours after the first tablet.If you do not have a period within 3 weeks, see your doctor for evaluation/care and discuss which birth control would be appropriate for you as postinor 2 is not used as routine contraceptive.Practice safe sex. Use condom. Take care.
Answered 12/19/2014
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