Side Effects

Drug information provided by: Micromedex

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 or nurse immediately if any of the following side effects occur:

More common

  1. Difficulty with speaking
  2. drooling
  3. loss of balance control
  4. muscle trembling, jerking, or stiffness
  5. restlessness
  6. shuffling walk
  7. stiffness of the limbs
  8. twisting movements of the body
  9. uncontrolled movements, especially of the face, neck, and back

Less common

  1. Blurred vision
  2. dizziness
  3. fast, pounding, or irregular heartbeat or pulse
  4. headache
  5. inability to move the eyes
  6. increased blinking or spasms of the eyelid
  7. nervousness
  8. pounding in the ears
  9. sticking out the tongue
  10. trouble breathing or swallowing
  11. unusual facial expressions


  1. Convulsions
  2. fast heartbeat
  3. high fever
  4. increased sweating
  5. lip smacking or puckering
  6. loss of bladder control
  7. muscle spasm or jerking of all extremities
  8. puffing of the cheeks
  9. rapid or worm-like movements of the tongue
  10. severe muscle stiffness
  11. sudden loss of consciousness
  12. tiredness
  13. uncontrolled chewing movements
  14. uncontrolled movements of the arms and legs
  15. unusually pale skin

Incidence not known

  1. Hives or welts, itching, or skin rash
  2. itching, puffiness, or swelling of the eyelids or around the eyes, face, lips, or tongue
  3. large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
  4. redness of the skin
  5. tightness in the chest
  6. 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

  1. Acid or sour stomach
  2. belching
  3. difficulty having a bowel movement (stool)
  4. dry mouth
  5. fear
  6. fever
  7. headache
  8. heartburn
  9. hyperventilation
  10. inability to sit still
  11. indigestion
  12. irritability
  13. lightheadedness
  14. need to keep moving
  15. runny nose
  16. shaking
  17. sore throat
  18. stomach discomfort, upset, or pain
  19. trouble sleeping
  20. weight gain

Less common

  1. Accidental injury
  2. bloating or swelling of the face, arms, hands, lower legs, or feet
  3. body aches or pain
  4. congestion
  5. coughing
  6. difficulty with moving
  7. hoarseness
  8. increased appetite
  9. joint pain
  10. muscle aching or cramping
  11. muscle pains or stiffness
  12. sneezing
  13. stuffy nose
  14. swollen joints
  15. tender, swollen glands in the neck
  16. tingling of the hands or feet
  17. tremor
  18. unusual weight gain or loss
  19. voice changes

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.