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:
Less common- Abdominal or stomach pain, cramping, or burning
- Bladder pain
- Bloating or swelling of the face, arms, hands, lower legs, or feet
- Bloody or black, tarry stools
- Blurred vision
- Chills
- Clay-colored stools
- Cloudy urine
- Constipation
- Cough
- Dark-colored urine
- Diarrhea
- Difficult, burning, or painful urination
- Dizziness
- Fever
- Frequent urge to urinate
- General feeling of discomfort or illness
- General feeling of tiredness or weakness
- Headache
- Heartburn
- Indigestion
- Itching
- Joint pain
- Light-colored stools
- Loss of appetite
- Lower back or side pain
- Muscle aches and pains
- Nausea
- Nervousness
- Pale skin
- Pounding in the ears
- Rapid weight gain
- Rash
- Runny nose
- Severe stomach pain
- Shivering
- Slow or fast heartbeat
- Sore throat
- Stomach pain, continuing
- Sweating
- Tingling of the hands or feet
- Trouble sleeping
- Troubled breathing with exertion
- Unpleasant breath odor
- Unusual bleeding or bruising
- Unusual tiredness or weakness
- Unusual weight gain or loss
- Vomiting
- Vomiting of blood or material that looks like coffee grounds
- Yellow eyes or skin
- Blistering, peeling, or loosening of the skin
- Change in consciousness
- Confusion as to time, place, or person
- Cracks in the skin
- Darkening of the skin
- Dry mouth
- Fainting
- Hallucinations
- Holding false beliefs that cannot be changed by fact
- Loss of consciousness
- Loss of heat from the body
- Mental depression
- Pain in lower back or side
- Pains in the chest, groin, or legs, especially calves of the legs
- Red skin lesions, often with a purple center
- Red, irritated eyes
- Red, swollen skin
- Scaly skin
- Seizures
- Severe headaches of sudden onset
- Sores, ulcers, or white spots in the mouth or on the lips
- Stiff neck or back
- Sudden loss of coordination
- Sudden onset of shortness of breath for no apparent reason
- Sudden onset of slurred speech
- Sudden vision changes
- Thirst
- Troubled breathing with exertion
- Unusual excitement, nervousness, or restlessness
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:
Less common- Acid or sour stomach
- Back pain
- Belching
- Body aches or pain
- Cough producing mucus
- Difficulty having a bowel movement (stool)
- Difficulty with moving
- Ear congestion
- Loss of voice
- Muscle stiffness
- Nasal congestion
- Pain or tenderness around the eyes and cheekbones
- Sneezing
- Stuffy nose
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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