Warfarin dose schedule

Warfarin dosing is guided by clinical factors and pharmacogenomics. Despite evidence regarding the improvement in warfarin dosing with dose-calculation formulae, such as provided by http://warfarindosing.org , implementation of dosing guidelines can be challenging.

This webpage displays the possible dispensable weekly doses of warfarin to a user supplied goal weekly warfarin dose, and can be limited to a given warfarin pill strength. By default, the list is sorted such that the nearest doses are displayed at the top. Possible dispensable weekly doses are those that can be achieved with 0.5, 1, 1.5, or 2 pill increments of the same pill strength (e.g., a 5mg tablet).

Download the full dose schedule in Microsoft® Excel® format here.

Weekly dose (mg) Pill strength (mg) Dosing schedulesort icon Instructions Same-Day Dosing (Identical all 7 days) Difference between specified weekly dose
10 1 6+1 take 1.5 tabs for 6 days and 1 tab for 1 day for total weekly dose 10 dispense 1 mg tabs
10 2 6+1 take 0.5 tab for 6 days and 2 tabs for 1 day for total weekly dose 10 dispense 2 mg tabs
10 2.5 6+1 take 0.5 tab for 6 days and 1 tab for 1 day for total weekly dose 10 dispense 2.5 mg tabs
11 1 6+1 take 1.5 tabs for 6 days and 2 tabs for 1 day for total weekly dose 11 dispense 1 mg tabs
11.25 2.5 6+1 take 0.5 tab for 6 days and 1.5 tabs for 1 day for total weekly dose 11.25 dispense 2.5 mg tabs
12 3 6+1 take 0.5 tab for 6 days and 1 tab for 1 day for total weekly dose 12 dispense 3 mg tabs
12.5 1 6+1 take 2 tabs for 6 days and 0.5 tab for 1 day for total weekly dose 12.5 dispense 1 mg tabs
12.5 2.5 6+1 take 0.5 tab for 6 days and 2 tabs for 1 day for total weekly dose 12.5 dispense 2.5 mg tabs
13 1 6+1 take 2 tabs for 6 days and 1 tab for 1 day for total weekly dose 13 dispense 1 mg tabs
13 2 6+1 take 1 tab for 6 days and 0.5 tab for 1 day for total weekly dose 13 dispense 2 mg tabs
13.5 1 6+1 take 2 tabs for 6 days and 1.5 tabs for 1 day for total weekly dose 13.5 dispense 1 mg tabs
13.5 3 6+1 take 0.5 tab for 6 days and 1.5 tabs for 1 day for total weekly dose 13.5 dispense 3 mg tabs
15 2 6+1 take 1 tab for 6 days and 1.5 tabs for 1 day for total weekly dose 15 dispense 2 mg tabs
15 3 6+1 take 0.5 tab for 6 days and 2 tabs for 1 day for total weekly dose 15 dispense 3 mg tabs
16 2 6+1 take 1 tab for 6 days and 2 tabs for 1 day for total weekly dose 16 dispense 2 mg tabs
16 4 6+1 take 0.5 tab for 6 days and 1 tab for 1 day for total weekly dose 16 dispense 4 mg tabs
16.25 2.5 6+1 take 1 tab for 6 days and 0.5 tab for 1 day for total weekly dose 16.25 dispense 2.5 mg tabs
18 4 6+1 take 0.5 tab for 6 days and 1.5 tabs for 1 day for total weekly dose 18 dispense 4 mg tabs
18.75 2.5 6+1 take 1 tab for 6 days and 1.5 tabs for 1 day for total weekly dose 18.75 dispense 2.5 mg tabs
19 2 6+1 take 1.5 tabs for 6 days and 0.5 tab for 1 day for total weekly dose 19 dispense 2 mg tabs
19.5 3 6+1 take 1 tab for 6 days and 0.5 tab for 1 day for total weekly dose 19.5 dispense 3 mg tabs
20 2 6+1 take 1.5 tabs for 6 days and 1 tab for 1 day for total weekly dose 20 dispense 2 mg tabs
20 2.5 6+1 take 1 tab for 6 days and 2 tabs for 1 day for total weekly dose 20 dispense 2.5 mg tabs
20 4 6+1 take 0.5 tab for 6 days and 2 tabs for 1 day for total weekly dose 20 dispense 4 mg tabs
20 5 6+1 take 0.5 tab for 6 days and 1 tab for 1 day for total weekly dose 20 dispense 5 mg tabs