Warfarin Dosing Algorithm

Provides warfarin initiation and maintenance dosing based on INR values, with adjustments for target INR range and special populations.

Current INR *

Target INR Range *

Current Weekly Warfarin Dose

mg/week

Required for maintenance adjustments

Day of Therapy *

High Bleeding Risk Factors

Elderly, debilitated, malnourished, heart failure, liver disease, high bleed risk, interacting medications

Enter values and click Calculate to see results