Tag: INR elevation

Trimethoprim-Sulfamethoxazole and Warfarin: Why INR Rises and How to Stay Safe
18
Jan
Trimethoprim-Sulfamethoxazole and Warfarin: Why INR Rises and How to Stay Safe
Medications 0 Comments

Trimethoprim-sulfamethoxazole can sharply raise INR in people taking warfarin, increasing bleeding risk. Learn why this happens, how to prevent it, and what to do if your INR spikes.