Gynaecology & Obstetrics General 0eb51004 Dose of mifepristone (in mg) for post-coital contraception: September 2012 A 10 B 20 C 40 D 60 High-Yield Explanation Ans. A i.e. 10 mg Post-coital contraception. Ten milligrams given within 72 h of unprotected coitus is used as a post-coital contraception