Clopidogrel is used to lower your risk of having a stroke, blood clot, or serious heart problem after you’ve had a heart attack, severe chest pain (angina), or circulation problems.
Clopidogrel may also be used for purposes not listed in this medication guide.
Before taking this medicine
You should not use clopidogrel if you are allergic to it, or if you have:
- any active bleeding; or
- a stomach ulcer or bleeding in the brain (such as from a head injury).
Tell your doctor if you have ever had:
- an ulcer in your stomach or intestines; or
- a bleeding disorder or blood clotting disorder.
Clopidogrel may not work as well if you have certain genetic factors that affect the breakdown of this medicine in your body. Your doctor may perform a blood test to make sure clopidogrel is right for you.
This medicine is not expected to harm an unborn baby. However, taking clopidogrel within 1 week before childbirth can cause bleeding in the mother. Tell your doctor if you are pregnant or plan to become pregnant.
You should not breast-feed while using this medicine.
Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Clopidogrel increases your risk of bleeding, which can be severe or life-threatening. Call your doctor or seek emergency medical attention if you have bleeding that will not stop, if you have blood in your urine, black or bloody stools, or if you cough up blood or vomit that looks like coffee grounds.
Also call your doctor at once if you have:
- pale skin, easy bruising, purple spots under your skin or in your mouth;
- jaundice (yellowing of your skin or eyes);
- fast heartbeats, shortness of breath;
- headache, fever, weakness, feeling tired;
- little or no urination;
- a seizure; or
- signs of a blood clot–sudden numbness or weakness, confusion, problems with vision or speech.