Your Warfarin Dose
Every person taking warfarin responds differently to the drug and needs an individual dosing schedule which changes with time and circumstances. That is why there is no “regular” dose of warfarin.

At the start of therapy, your dose may change quite a bit while we determine the proper dose for you. Even after you have been on warfarin for some time, the dose you need may change for a number of reasons.

Using the Anticoagulant Therapy Drug Dosage Calendar can help you take your warfarin exactly as directed. This can help avoid taking the wrong dose, missing doses or taking double doses.

Time of Day
You should take warfarin at the same time every day. Make it a time that is easy for you to remember. You may take warfarin with or without food.

Missed Doses
If you miss a dose of warfarin but remember later that same day, go ahead and take your dose. If you don’t remember until the next day, skip that dose. Don’t double up on doses. Write the dose you missed in your Drug Dosage Calendar and simply take your usual dose.

Brand vs. Generic
You may take brand name Coumadin or generic warfarin. The important thing is that you are consistent in whichever you decide to purchase. Switching between products may cause changes in your blood test levels. A way to make sure that you are getting the same product is to make sure the color and shape of the tablet are the same each time you go to the pharmacy. If something has changed, ask the pharmacist.