A 30-year-old woman using an etonogestrel implant is started on primidone for essential tremor. What is the impact on her contraception?...

Question

A 30-year-old woman using an etonogestrel implant is started on primidone for essential tremor. What is the impact on her contraception?

Accepted Answer

Primidone is an enzyme inducer; the implant's efficacy may be reduced and she should switch to an unaffected method

Answer

Primidone has no effect on the implant

Answer

Primidone only affects oral contraception

Answer

She should have her implant replaced more frequently

Answer

Primidone increases implant efficacy

uk-dfsrh MCQ (SBA): Primidone Enzyme Inducer Implant Interaction