A 76-year-old woman on warfarin (target INR 2-3) for AF starts on clarithromycin for pneumonia. What is the key prescribing consideration?...

Question

A 76-year-old woman on warfarin (target INR 2-3) for AF starts on clarithromycin for pneumonia. What is the key prescribing consideration?

Accepted Answer

Expect increased INR and monitor more frequently

Answer

No interaction expected

Answer

Expect reduced INR

Answer

Stop warfarin immediately

Answer

Switch to aspirin temporarily

prescribing safety assessment MCQ (SBA): Warfarin–macrolide interaction