Answer
Taking clarithromycin and warfarin together carries a risk of serious haemorrhage and significant increases in International Normalized Ratio (INR) and prothrombin time, which should be monitored frequently during concurrent treatment.
Sources for this answer
- Clarithromycin 250mg Film-coated TabletsSandoz Limited · emc · SmPC §4.4 Special warnings and precautions for use · Version 14Document updated
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