Frequently asked questions about warfarin

Can I drink alcohol while taking warfarin?

  • Talk with your doctor about how much alcohol you can drink.
  • If you do drink alcohol, it is recommended to not have more than two drinks (can of beer, glass of wine, shot of spirit) per day for men or one drink per day for women.
  • If you drink more alcohol than this, you may have a higher risk for bleeding.
  • It is not safe to binge drink by having many drinks in one day.

What should I do if I cut myself or get injured?

  • In general, small cuts or scrapes will stop bleeding after putting pressure on the cut.
  • Call your health-care provider right away if you have a hard fall or hit your head. You may need to be seen by a doctor.

What if I become pregnant?

  • If you become pregnant or are planning to become pregnant, let your health-care provider know right away.
  • Warfarin should not be taken during pregnancy because it can hurt the fetus.
  • If you need a blood thinner during pregnancy, your doctor can change your medicine to one taken by a shot. This will help you safely take blood thinners during pregnancy.

Can I do sports or physical activities?

  • If you take warfarin you can do physical activities that have a low risk for getting hurt.
  • Certain contact sports or activities where you can get hurt may increase risk for bleeding.

Can I travel while taking warfarin?

  • Yes, you can travel.
  • If you are going to be gone a long time, it is very important you tell your health-care provider of your travel plans.
  • You may need to get your blood drawn before you leave or make plans to have your blood tested while you’re away.
  • Try and keep your eating habits and the time you take warfarin the same.
  • Make sure that you have enough warfarin with you.
  • If on a long car or plane trip, try to move around every two to three hours to decrease the risk for getting blood clots.

How should I store warfarin?

Keep this medicine away from children. Store it at room temperature. Keep it away from too much heat and moisture, such as in the bathroom. Get rid of any medicine that is expired or no longer needed.

Do all warfarin tablets look the same?

No, the shape and color of the tablet may not be the same. Different companies make warfarin, but the color for each tablet strength will be the same. For example, the five mg tablets are peach and 2 1/2 mg tablets are green. Always check your tablets to make sure you are taking the right dose.

The table below shows warfarin tablet strengths and their colors.

Dose Color
One mg Pink
Two mg Lavender
2 1/2 mg Green
Three mg Tan
Four mg Blue
Five mg Peach
Six mg Teal
7 1/2 mg Yellow
10 mg White

Coumadin (warfarin tablets)

Chart of different Warfarin dose colors

Warfarin tablets (Barr brand)

Chart of different Warfarin colors

Last reviewed: 
August 2017

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