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- Cough
- Difficulty with speaking
- Drooling
- Fear or nervousness
- Fever
- Inability to sit still
- Loss of balance control
- Muscle trembling, jerking, or stiffness
- Need to keep moving
- Restlessness
- Shuffling walk
- Sneezing
- Sore throat
- Stiffness of the limbs
- Twisting movements of the body
- Uncontrolled movements, especially of the face, neck, and back
- Blurred vision
- Body aches or pain
- Chest pain
- Congestion
- Dizziness
- Fast, pounding, or irregular heartbeat or pulse
- Headache
- Hoarseness
- Nervousness
- Pounding in the ears
- Runny nose
- Slow or fast heartbeat
- Swelling of the tongue
- Tender, swollen glands in the neck
- Trouble with swallowing
- Voice changes
- Fainting or feeling faint
- Feeling faint upon standing
- Persistent, painful erection
- Seizures
- Inability to move the eyes
- Increased blinking or spasms of the eyelid
- Sticking out of tongue
- Trouble with breathing, speaking, or swallowing
- Uncontrolled twisting movements of the neck, trunk, arms, or legs
- Unusual facial expressions
Get emergency help immediately if any of the following symptoms of overdose occur:
Symptoms of overdose- Drowsiness
- Shakiness in the legs, arms, hands, or feet
- Sleepiness
- Slurred speech
- Trembling or shaking of the hands or feet
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- Acid or sour stomach
- Belching
- Constipation
- Diarrhea
- Heartburn
- Indigestion
- Lack or loss of strength
- Nausea
- Rash
- Stomach discomfort, upset, or pain
- Weakness
- Weight gain
- Blistering, crusting, irritation, itching, or reddening of the skin
- Burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
- Change in vision
- Cracked, dry, or scaly skin
- Depression
- Difficulty with moving
- Dry mouth
- Increase in salivation
- Itching or reddening of the skin
- Joint pain
- Loss of appetite
- Muscle ache
- Muscle pains or stiffness
- Muscle tightness
- Stuffy nose
- Swelling
- Swollen joints
- Vomiting
- Weakness of the arms and legs
- 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.


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