A 35-year-old woman is diagnosed with latent tuberculosis and started on rifampicin and isoniazid for 3 months. She has an etonogestrel implant. What ...

Question

A 35-year-old woman is diagnosed with latent tuberculosis and started on rifampicin and isoniazid for 3 months. She has an etonogestrel implant. What is the most important contraceptive advice?

Accepted Answer

Rifampicin is a potent enzyme inducer that reduces implant efficacy for the ENTIRE duration of treatment and for 28 days after stopping. She should switch to Cu-IUD, LNG-IUS, or DMPA

Answer

No change needed; the implant is unaffected

Answer

Isoniazid reduces implant efficacy

Answer

She should take a POP in addition to the implant

Answer

She should use condoms only during the first week of treatment

uk-dfsrh MCQ (SBA): Rifampicin 3 Month Course Switch from Implant

A 35-year-old woman is diagnosed with latent tuberculosis and started on rifampicin and isoniazid for 3 months. She has an etonogestrel implant. What is the most important contraceptive advice?