Warfarin Dose Estimator
Prototype only. Not a validated clinical dosing tool.
If using today's AM INR to choose today's dose, leave today's dose box blank. Enter 0 mg for a missed or held dose. Blank rows are ignored.
Goal + patient factors
Uses a less conservative subtherapeutic-INR strategy when INR is flat/low after day 3+, but still reduces/holds for fast INR rise, supratherapeutic INR, bleeding, vitamin K, or major interacting meds.
INR-increasing meds
INR-decreasing meds
Clinical sensitivity / bleeding risk
Daily INR + dose history
AM INR is assumed to be drawn before that day's evening dose. Enter 0 mg for missed/held dose; leave unknown rows blank.
| Day | Date | AM INR | Dose mg 0 = missed/held |
|---|---|---|---|
| 1 | |||
| 2 | |||
| 3 | |||
| 4 | |||
| 5 | |||
| 6 | |||
| 7 | |||
| 8 | |||
| 9 | |||
| 10 |