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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- Clumsiness or unsteadiness
- Continuous, uncontrolled, back-and-forth or rolling eye movements
- Aggressive behavior or other behavior problems
- Anxiety
- Concentration problems and change in school performance
- Crying
- Depression
- False sense of well-being
- Hyperactivity or increase in body movements
- Rapidly changing moods
- Reacting too quickly, too emotionally, or overreacting
- Restlessness
- Suspiciousness or distrust
- Black, tarry stools
- Chest pain
- Chills
- Cough
- Depression, irritability, or other mood or mental changes
- Fever
- Loss of memory
- Pain or swelling in the arms or legs
- Painful or difficult urination
- Shortness of breath
- Sore throat
- Sores, ulcers, or white spots on the lips or in the mouth
- Swollen glands
- Unusual bleeding or bruising
- Unusual tiredness or weakness
- Abdominal or stomach pain
- Blistering, peeling, or loosening of the skin
- Clay-colored stools
- Coma
- Confusion
- Convulsions
- Dark urine
- Decreased urine output
- Diarrhea
- Dizziness
- Fast or irregular heartbeat
- Headache
- Increased thirst
- Itching
- Joint pain
- Large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
- Loss of appetite
- Muscle ache or pain
- Nausea
- Red irritated eyes
- Red skin lesions, often with a purple center
- Skin rash
- Unpleasant breath odor
- Vomiting of blood
- Yellow eyes or skin
Get emergency help immediately if any of the following symptoms of overdose occur:
Symptoms of overdose- Double vision
- Drowsiness
- Sluggishness
- Slurred speech
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- Blurred vision
- Cold or flu-like symptoms
- Delusions
- Dementia
- Hoarseness
- Lack or loss of strength
- Lower back or side pain
- Swelling of the hands, feet, or lower legs
- Trembling or shaking
- Accidental injury
- Appetite increased
- Back pain
- Bloated full feeling
- Body aches or pain
- Burning, dry, or itching eyes
- Change in vision
- Change in walking and balance
- Clumsiness or unsteadiness
- Congestion
- Constipation
- Cough producing mucus
- Decrease in sexual desire or ability
- Dementia
- Difficulty with breathing
- Dryness of the mouth or throat
- Earache
- Excess air or gas in stomach or intestines
- Excessive tearing
- Eye discharge
- Feeling faint, dizzy, or lightheadedness
- Feeling of warmth or heat
- Flushing or redness of the skin, especially on the face and neck
- Flushed, dry skin
- Frequent urination
- Fruit-like breath odor
- Impaired vision
- Incoordination
- Increased hunger
- Increased sensitivity to pain
- Increased sensitivity to touch
- Increased thirst
- Indigestion
- Low blood pressure
- Nervousness
- Noise in the ears
- Pain, redness, rash, swelling, or bleeding where the skin is rubbed off
- Passing gas
- Redness or swelling in the ear
- Redness, pain, swelling of the eye, eyelid, or inner lining of the eyelid
- Runny nose
- Shortness of breath
- Sneezing
- Sweating
- Tender, swollen glands in the neck
- Tightness in the chest
- Tingling in the hands and feet
- Troubled breathing
- Trouble with sleeping
- Trouble with swallowing
- Trouble with thinking
- Twitching
- Unexplained weight loss
- Voice changes
- Vomiting
- Weakness or loss of strength
- Weight gain
- Wheezing
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.
