Skip to content
My WebMD Sign In, Sign Up

Genetic Test for Clopidogrel

Font Size

Topic Overview

Clopidogrel (Plavix) is a medicine to prevent blood clots, which can cause heart attacks and strokes. It may be prescribed after a heart attack, after angioplasty, and for people who have heart disease or peripheral arterial disease.

Some people have changes, or mutations, to a certain gene (CYP2C19). These changes may keep the body from being able to use clopidogrel to prevent blood clots. If a person with these genetic changes takes clopidogrel, the medicine may not work. This may raise the person's chance of having a heart attack or a stroke.

Recommended Related to Health A-Z

Chilaiditi's Syndrome

Important It is possible that the main title of the report Chilaiditi's Syndrome is not the name you expected.

Read the Chilaiditi's Syndrome article > >

A genetic test might be used if your doctor thinks that your body is not using clopidogrel properly. This test checks to see if you have genes that let your body use clopidogrel. But experts aren't yet sure whether genetic changes keep clopidogrel from preventing a heart attack or stroke. This genetic test alone is not enough to tell whether the medicine will help you. You also may have a test that shows how your body's platelets are working to clot blood. Having a platelet test after you take an antiplatelet can show if the medicine is working.

The test is done by swabbing the inside of your cheek.

1

WebMD Medical Reference from Healthwise

Last Updated: February 13, 2013
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
Next Article:

Genetic Test for Clopidogrel Topics

Hot Topics

Health Solutions From Our Sponsors

WebMD Video: Now Playing

Click here to wach video: Dirty Truth About Hand Washing

Which sex is the worst about washing up? Why is it so important? We’ve got the dirty truth on how and when to wash your hands.

Click here to watch video: Dirty Truth About Hand Washing

Popular Slideshows & Tools on WebMD

hands on abdomen
Can you catch one?
Woman sitting in front of UV lights
Is yours working?
woman using breath spray
What's causing yours?
womans hand on abdomen
Are you ready for baby?
MS Overview
Recognizing symptoms.
bowl of yogurt with heart shape
Eat for a healthy heart.
woman doing pushups
To help you get fit.
Colored x-ray of tooth decay
Know what to look for.
Woman sitting with child
Do you know the symptoms?
mosquito
Stings, bites, burns, and more.
Allentown, PA
Are you living in one?
Thyroid exam
See how much you know.

Women's Health Newsletter

Find out what women really need.