Tag: warfarin antibiotic interaction

Antibiotics and Warfarin: How to Manage INR Spikes and Reduce Bleeding Risk

Eldon Vespers 4 December 2025 2

Antibiotics can cause dangerous INR spikes in people taking warfarin, increasing bleeding risk. Learn which antibiotics are most risky, when to test your INR, and how to prevent life-threatening complications.

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