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Emergency contraception interaction assessment — GPhC CRA MCQ

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ModeratePatient Counselling and Pharmaceutical CareEmergency contraception interaction assessmentGPhC CRA

A 52-year-old man with epilepsy takes carbamazepine 400mg twice daily. His partner requests emergency contraception advice after condom failure 48 hours ago. She takes no regular medicines and weighs 72kg. What is the most important interaction to flag?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: ECarbamazepine exposure in the male partner does not reduce emergency contraception efficacy

Enzyme induction affects the person taking the enzyme inducer, not a partner exposed through sexual contact. Emergency contraception choice should be based on the woman needing treatment, timing, preferences and clinical suitability. This tests avoiding inappropriate extrapolation of an interaction.

Reference: FSRH guidance; BNF