Plan B is purely for emergencies, in that it may help prevent pregnancy if you're not already fertile at the time you had sex. It is less reliable than regular hormonal birth control pills etc., & is really just a case of something you can try in an emergency, rather than leaving it totally to chance.
Even when taken after sex, if you are already ovulating, it won't work. You need a pill called Ulipristal Acetate for that scenario, & even then, it's just another emergency option.
The Manufacturer also state that you're not covered for any episodes of unprotected sex that you may have, once you have taken Plan B.
- Plan B Information for Consumers
- Plan B Information for Healthcare Professionals (includes dosage details)
- Side Effects of Plan B (detailed)
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