General educational guide for INR-based Warfarin dose adjustments.
Current Status
INR
mg/week
Adjustment Guidance
Action PlanMaintain current dose
Suggested Weekly Dose35.0mgStable
This calculation suggests a daily dose of around 5.0 mg.
NEVER adjust blood thinning medication without consulting your doctor. High INR increases bleeding risk.
Overview
Warfarin (Coumadin) is an anticoagulant that requires frequent monitoring of the International Normalized Ratio (INR). This tool provides a general guide for dose adjustments based on common clinical protocols. **Actual dosing changes must only be made under medical supervision.**
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Pro Tips
Maintain a consistent intake of Vitamin K-rich foods rather than avoiding them.
Take Warfarin at the same time every day, usually in the evening.
If you miss a dose, take it as soon as you remember that same day, but never double up.
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Fun Facts
"Warfarin inhibits the synthesis of Vitamin K-dependent clotting factors."
"Dietary Vitamin K (found in dark green leafy vegetables) can affect Warfarin effectiveness."
"Antibiotics and many other medications can significantly alter INR levels."
"The effect of a dose change usually takes 36 to 72 hours to fully manifest."
Formula: Adjustments are calculated as percentage changes to the total weekly dose (TWD).
