Answer
Clarithromycin taken with warfarin can cause serious haemorrhage and significant elevations in International Normalized Ratio (INR) and prothrombin time, requiring frequent monitoring of INR and prothrombin time during concurrent treatment.
Sources for this answer
- Clarithromycin 500 mg powder for concentrate for solution for infusionhameln pharma ltd · emc · SmPC §4.4 Special warnings and precautions for use · Version 16Document updated
Sources checked