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)sort icon Dosing schedule Instructions Same-Day Dosing (Identical all 7 days) Difference between specified weekly dose
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
22.5 5 6+1 take 0.5 tab for 6 days and 1.5 tabs for 1 day for total weekly dose 22.5 dispense 5 mg tabs
22.5 5 5+2 take 0.5 tab for 5 days and 1 tab for 2 day for total weekly dose 22.5 dispense 5 mg tabs
25 5 6+1 take 0.5 tab for 6 days and 2 tabs for 1 day for total weekly dose 25 dispense 5 mg tabs
25 5 4+3 take 0.5 tab for 4 days and 1 tab for 3 day for total weekly dose 25 dispense 5 mg tabs
27.5 5 5+2 take 0.5 tab for 5 days and 1.5 tabs for 2 day for total weekly dose 27.5 dispense 5 mg tabs
27.5 5 4+3 take 1 tab for 4 days and 0.5 tab for 3 day for total weekly dose 27.5 dispense 5 mg tabs
30 5 5+2 take 1 tab for 5 days and 0.5 tab for 2 day for total weekly dose 30 dispense 5 mg tabs
32.5 5 6+1 take 1 tab for 6 days and 0.5 tab for 1 day for total weekly dose 32.5 dispense 5 mg tabs
32.5 5 5+2 take 0.5 tab for 5 days and 2 tabs for 2 day for total weekly dose 32.5 dispense 5 mg tabs
32.5 5 4+3 take 0.5 tab for 4 days and 1.5 tabs for 3 day for total weekly dose 32.5 dispense 5 mg tabs
37.5 5 6+1 take 1 tab for 6 days and 1.5 tabs for 1 day for total weekly dose 37.5 dispense 5 mg tabs
37.5 5 4+3 take 1.5 tabs for 4 days and 0.5 tab for 3 day for total weekly dose 37.5 dispense 5 mg tabs
40 5 6+1 take 1 tab for 6 days and 2 tabs for 1 day for total weekly dose 40 dispense 5 mg tabs
40 5 5+2 take 1 tab for 5 days and 1.5 tabs for 2 day for total weekly dose 40 dispense 5 mg tabs
40 5 4+3 take 0.5 tab for 4 days and 2 tabs for 3 day for total weekly dose 40 dispense 5 mg tabs
42.5 5 5+2 take 1.5 tabs for 5 days and 0.5 tab for 2 day for total weekly dose 42.5 dispense 5 mg tabs
42.5 5 4+3 take 1 tab for 4 days and 1.5 tabs for 3 day for total weekly dose 42.5 dispense 5 mg tabs
45 5 5+2 take 1 tab for 5 days and 2 tabs for 2 day for total weekly dose 45 dispense 5 mg tabs
45 5 4+3 take 1.5 tabs for 4 days and 1 tab for 3 day for total weekly dose 45 dispense 5 mg tabs
47.5 5 6+1 take 1.5 tabs for 6 days and 0.5 tab for 1 day for total weekly dose 47.5 dispense 5 mg tabs
47.5 5 5+2 take 1.5 tabs for 5 days and 1 tab for 2 day for total weekly dose 47.5 dispense 5 mg tabs
47.5 5 4+3 take 2 tabs for 4 days and 0.5 tab for 3 day for total weekly dose 47.5 dispense 5 mg tabs
50 5 6+1 take 1.5 tabs for 6 days and 1 tab for 1 day for total weekly dose 50 dispense 5 mg tabs
50 5 4+3 take 1 tab for 4 days and 2 tabs for 3 day for total weekly dose 50 dispense 5 mg tabs