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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 as soon as possible if any of the following side effects occur:
More common- Chest pain or discomfort
- Fever
- Loss of appetite
- Lower back or side pain
- Nausea and/or vomiting
- Nervousness
- Pain or burning while urinating
- Painful or difficult urination
- Sores on the skin
- Tingling, burning, or prickling sensations
- Unusual tiredness
- Yellow eyes or skin
- Black, tarry stools
- Bloody vomit
- Blurred vision
- Chills or sore throat
- Coldness
- Convulsions (seizures)
- Cough or hoarseness
- Dark urine
- Dry, puffy skin
- Eye pain
- Fainting
- Influenza (flu)-like symptoms
- Irregular heartbeat
- Kidney stones
- Persistent anorexia
- Pruritus
- Right upper quadrant tenderness
- Seeing things that are not there
- Shortness of breath
- Slow or irregular heartbeat
- Unusual tiredness or weakness
- Weight gain
- Continuing vomiting
- General feeling of tiredness or weakness
- Headache
- Light-colored stools
Get emergency help immediately if any of the following symptoms of overdose occur:
Symptoms of overdose- Blurred vision
- Change in consciousness
- Chest pain or discomfort
- Confusion
- Decreased awareness or responsiveness
- Difficult or troubled breathing
- Dizziness, faintness or lightheadedness when getting up from a lying position
- Irregular, fast or slow, or shallow breathing
- Lightheadedness, dizziness or fainting
- Loss of consciousness
- Pale or blue lips, fingernails, or skin
- Severe sleepiness
- Shortness of breath
- Sleepiness or unusual drowsiness
- Slow or irregular heartbeat
- Sweating
- Unusual tiredness or weakness
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- Anxiety
- Back pain
- Constipation
- Depression
- Diarrhea
- Difficulty in speaking
- Dizziness or lightheadedness, especially when getting up from a lying or sitting position
- Drowsiness
- Dry mouth
- Heartburn
- Increased sweating
- Increased muscle spasms or tone
- Muscle weakness
- Pain or burning in throat
- Runny nose
- Skin rash
- Sleepiness
- Stomach pain
- Uncontrolled movements of the body
- Difficulty swallowing
- Dry skin
- General feeling of discomfort or illness
- Increased need to urinate
- Joint or muscle pain or stiffness
- Loss of hair
- Migraine headache
- Mood changes
- Neck pain
- Passing urine more often
- Shivering
- Swelling of feet or lower legs
- Swollen area that feels warm and tender
- Trembling or shaking
- Trouble sleeping
- Unusual feeling of well-being
- Unusual tiredness or weakness
- Weight loss
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.
