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- Fast or irregular heartbeat
- Fever
- Abnormal bleeding
- Bloody or black tarry stools
- Bruises and/or red spots on the skin
- Fainting
- Nausea, heartburn, and/or indigestion (severe or continuing)
- Nosebleeds
- Stiff neck
- Stomach pain, cramping, or burning (severe)
- Swelling of the tongue
- Vomiting of blood or material that looks like coffee grounds
- Abdominal or stomach pain
- Area rash
- Bleeding gums
- Bleeding tendency
- Blistering, peeling, loosening of skin
- Blood in urine or stools
- Blurred vision
- Chest pain
- Chills
- Clay-colored stools
- Confusion
- Cough or hoarseness
- Coughing up blood
- Dark urine
- Diarrhea
- Difficult breathing
- Drowsiness
- Fever with or without chills
- General feeling of tiredness or weakness
- Headache, sudden and severe
- Inability to speak
- Irregular heartbeat
- Itching of eyes
- Itching of skin
- Joint or muscle pain
- Lab results that show problems with the liver
- Light-colored stools
- Loss of appetite
- Loss of consciousness
- Lower back or side pain
- Nausea and vomiting
- Painful or difficult urination
- Pinpoint red spots on skin
- Red, irritated eyes
- Red skin lesions, often with a purple center
- Seizures
- Shortness of breath
- Skin rash
- Slurred speech
- Sores, ulcers, or white spots on lips or in mouth
- Stomach pain
- Swollen glands
- Temporary blindness
- Unpleasant breath odor
- Unusual bleeding or bruising
- Unusual tiredness or weakness
- Weakness in arm and/or leg on one side of the body, sudden and severe
- Weakness of part of body
- Wheezing
- Yellow eyes or skin
- Diarrhea
- Dizziness or lightheadedness when getting up from a lying or sitting position
- Fast or irregular heartbeat
- Headache (severe)
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:
More common- Back pain
- Dizziness
- Gas
- Headache
- Increased cough
- Pain or stiffness in muscles
- Pounding heartbeat
- Runny or stuffy nose
- Sore throat
- Swelling of arms or legs
- Bone pain
- Burning feeling in throat or chest
- Difficulty in swallowing
- Hives
- Pain or stiffness in joints
- Ringing or buzzing in ears
- Swelling of face, fingers, and/or lower legs
- Bruising
- Hot flushes
- Pain
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.


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