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)sort icon Pill strength (mg) Dosing schedule Instructions Same-Day Dosing (Identical all 7 days) Difference between specified weekly dose
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
16.25 2.5 5+2 take 0.5 tab for 5 days and 2 tabs for 2 day for total weekly dose 16.25 dispense 2.5 mg tabs
16.25 2.5 4+3 take 0.5 tab for 4 days and 1.5 tabs for 3 day for total weekly dose 16.25 dispense 2.5 mg tabs
16.5 3 5+2 take 0.5 tab for 5 days and 1.5 tabs for 2 day for total weekly dose 16.5 dispense 3 mg tabs
16.5 3 4+3 take 1 tab for 4 days and 0.5 tab for 3 day for total weekly dose 16.5 dispense 3 mg tabs
17 2 5+2 take 1.5 tabs for 5 days and 0.5 tab for 2 day for total weekly dose 17 dispense 2 mg tabs
17 2 4+3 take 1 tab for 4 days and 1.5 tabs for 3 day for total weekly dose 17 dispense 2 mg tabs
17.5 5 7 take 0.5 tab for 7 days for total weekly dose 17.5 dispense 5 mg tabs
18 2 5+2 take 1 tab for 5 days and 2 tabs for 2 day for total weekly dose 18 dispense 2 mg tabs
18 2 4+3 take 1.5 tabs for 4 days and 1 tab for 3 day for total weekly dose 18 dispense 2 mg tabs
18 3 5+2 take 1 tab for 5 days and 0.5 tab for 2 day for total weekly dose 18 dispense 3 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 4 5+2 take 0.5 tab for 5 days and 1 tab for 2 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
18.75 2.5 4+3 take 1.5 tabs for 4 days and 0.5 tab for 3 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 2 5+2 take 1.5 tabs for 5 days and 1 tab for 2 day for total weekly dose 19 dispense 2 mg tabs
19 2 4+3 take 2 tabs for 4 days and 0.5 tab for 3 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
19.5 3 5+2 take 0.5 tab for 5 days and 2 tabs for 2 day for total weekly dose 19.5 dispense 3 mg tabs
19.5 3 4+3 take 0.5 tab for 4 days and 1.5 tabs for 3 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 4+3 take 1 tab for 4 days and 2 tabs for 3 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