Clopidogrel (Oral Route)

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Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

More common
  • Chest pain
  • Collection of blood under the skin
  • Deep, dark purple bruise
  • Itching, pain, redness, or swelling
  • Pain in general
  • Red or purple spots on the skin, varying in size from pinpoint to large bruises
Less common
  • Nosebleed
  • Painful or difficult urination
  • Shortness of breath
  • Vomiting of blood or material that looks like coffee grounds
Rare
  • Black, tarry stools
  • Blistering, flaking, or peeling of the skin
  • Blood in the urine or stools
  • Confusion
  • Fever, chills, or sore throat
  • Headache (sudden, severe)
  • Nausea or vomiting
  • Stomach pain (severe)
  • Ulcers, sores, or white spots in the mouth
  • Unusual bleeding or bruising
  • Weakness (sudden)
Incidence not known
  • Abdominal or stomach cramps or swelling
  • Back pain or backaches
  • Blurred vision
  • Change in mental status
  • Cough or hoarseness
  • Dark urine
  • Difficulty with breathing or swallowing
  • Difficulty with speaking
  • Dizziness
  • Dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
  • Fast heartbeat
  • Feeling of discomfort
  • General feeling of tiredness or weakness
  • Hives
  • Inflammation of the joints
  • Itching
  • Light-colored stools
  • Lower back or side pain
  • Muscle aches
  • Pale color of the skin
  • Puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  • Rash
  • Reddening of the skin, especially around the ears
  • Seizures
  • Sweating
  • Swelling of the eyes, face, or inside of the nose
  • Swollen lymph glands
  • Swollen or painful glands
  • Tightness in the chest
  • Unusual tiredness or weakness
  • Upper right abdominal or stomach pain
  • Watery or bloody diarrhea
  • Wheezing
  • Yellow eyes or skin

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Incidence not known
  • Bad, unusual, or unpleasant (after) taste
  • Bloating
  • Change in taste
  • Constipation
  • Diarrhea
  • Difficulty with moving
  • Headache
  • Hives or welts
  • Indigestion
  • Loss of appetite
  • Muscle pain or stiffness
  • Noisy breathing
  • Pain in the joints
  • Pains in the stomach, side, or abdomen, possibly radiating to the back
  • Redness, soreness, or itching skin
  • Seeing, hearing, or feeling things that are not there
  • Skin blisters
  • Sores, welting, or blisters
  • Swelling or inflammation of the mouth

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

Precautions
DR600469 Portions of this document last updated: Feb. 1, 2012

Source: Drug Information provided by: Micromedex

Copyright © 2012 Thomson Healthcare Inc. All rights reserved. Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes.

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