Tag: CYP2C9 inhibition

Trimethoprim-Sulfamethoxazole and Warfarin: Why Your INR Spikes and How to Stay Safe

• Laura Ledas
• May, 31 2026

Discover why combining Trimethoprim-Sulfamethoxazole and Warfarin causes dangerous INR spikes. Learn the mechanisms, risks, and safety protocols to prevent bleeding complications.

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