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Warfarin and Other Blood Thinners for Heart Disease

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When Should I Call my Doctor About Warfarin?

If you take warfarin, call your doctor if you notice any of the following signs of bleeding or illness that can affect the way your warfarin works:

  • Feeling more weak or tired than usual or looking pale (symptoms of anemia).
  • Bleeding from cuts that won't stop after applying pressure for 10 minutes.
  • Coughing or vomiting blood (which may look like coffee grounds).
  • Bleeding from the nose, gums, or ears.
  • Unusual color of the urine or stool (including dark brown urine, or red or black, tarry stools).
  • Unusual bruising (black and blue marks on your skin) for unknown reasons.
  • Menstrual bleeding that is heavier or lasts longer than normal.
  • A fever or illness that gets worse.
  • A serious fall or a blow to the head.
  • Unusual pain or swelling.
  • Unusual headache.
  • Dizziness.
  • Difficulty breathing.

If you notice any of these symptoms, your doctor may want to do a blood test, stop the warfarin or prescribe medication to stop the bleeding.

Also contact your doctor if you have any other symptoms that cause concern.

 

WebMD Medical Reference

Reviewed by James Beckerman, MD, FACC on February 19, 2014
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