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- Anxiety
- Blurred vision
- Changes in patterns and rhythms of speech
- Confusion
- Cough
- Crying
- Delusions
- Dementia
- Depersonalization
- Difficulty breathing
- Difficulty in speaking
- Dizziness, faintness, or lightheadedness when getting up from a lying or sitting position suddenly
- Dry mouth
- Dysphoria
- Euphoria
- False or unusual sense of well-being
- Feeling of warmth or heat
- Flushing or redness of skin, especially on face and neck
- Headache
- Hyperventilation
- Irregular heartbeats
- Irritability
- Lack of coordination
- Mental depression
- Mood or mental changes
- Nervousness
- Noisy breathing
- Paranoia
- Quick to react or overreact emotionally
- Rapidly changing moods
- Restlessness
- Seizures
- Shakiness and unsteady walk
- Shortness of breath
- Slurred speech
- Sweating
- Tightness in chest
- Trouble in speaking
- Trouble sleeping
- Unsteadiness, trembling, or other problems with muscle control or coordination
- Unusual tiredness or weakness
- Wheezing
- Bladder pain
- Bloody or cloudy urine
- Difficult, burning, or painful urination
- Fever or chills
- Frequent urge to urinate
- Increase in body movements
- Lower back or side pain
- Painful or difficult urination
- Pale skin
- Swollen, painful, or tender lymph glands in neck, armpit, or groin
- Unusual bleeding or bruising
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- Sleepiness or unusual drowsiness
- Diarrhea
- Feeling of constant movement of self or surroundings
- Hiccups
- Lack or loss of strength
- Rash
- Runny nose
- Sensation of spinning
- Sneezing
- Stuffy nose
- Bigger, dilated, or enlarged pupils (black part of eye)
- Increased sensitivity of eyes to light
- Itching skin
- Loss of appetite
- Vomiting
- 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.


Find Mayo Clinic on