Important things to remember about warfarin

  • Take your warfarin exactly as you are told.
  • Get your blood tested as ordered.
  • Check with your provider before you change, start, or stop taking any medicines or herbal products.
  • Do not make big changes in the food you eat, lifestyle, or activities without talking to your provider first.
  • Limit or stop drinking alcohol.
  • Do not take 2 doses if you miss a dose. Record the day you missed your dose.
  • Tell anyone giving you medical or dental care that you are taking warfarin.
  • Some procedures and surgeries cannot be done if you are on warfarin.
    • Carry a patient identification (ID) card.
    • Wear a medical alert bracelet or necklace.

Call your health-care provider right away if you have any of the following:

  • Have unusual bleeding or bruising
  • Get sick or injured
  • Have signs of a blood clot
  • Are planning or become pregnant
  • Miss doses for 2 or more days
Last reviewed: 
December 2021

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