Heart Disease Home > Coumadin

What If I Take an Overdose?

An overdose with Coumadin could potentially cause life-threatening problems as the result of dangerous internal bleeding. If you happen to take too much of this drug, seek immediate medical attention.
(Click Coumadin Overdose for more information.)

How Should Coumadin Be Stored?

Coumadin should be stored at room temperature, away from moisture and heat. Keep this and all other medications out of the reach of children.

What Should I Do If I Miss a Dose?

If you do not take your Coumadin as scheduled, take your missed dose as soon as possible on the same day. However, do not take two doses on the same day or take a double dose. Be sure to keep track of any missed doses (perhaps on a calendar), as your healthcare provider will use this information when monitoring your response to the medication.
If you miss one or more doses, be sure to contact your healthcare provider for further instructions.

Strengths of Coumadin

Coumadin tablets come in the following strengths:
  • Coumadin 1 mg (pink)
  • Coumadin 2 mg (lavender)
  • Coumadin 2.5 mg (green)
  • Coumadin 3 mg (tan)
  • Coumadin 4 mg (blue)
  • Coumadin 5 mg (peach)
  • Coumadin 6 mg (teal)
  • Coumadin 7.5 mg (yellow)
  • Coumadin 10 mg (white).
An injectable version of Coumadin is also available.
Each tablet is a different color. The colors of the tablets are important, as it is essential to make sure you have the correct strength (taking too little or too much can be dangerous). Every time you refill your prescription, make sure the tablets are the correct color.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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