Side Effects

Drug information provided by: Merative, 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 immediately if any of the following side effects occur:

More common

  1. Drowsiness

Less common

  1. Dizziness


  1. Anxiety
  2. dry mouth
  3. hyperventilation
  4. increased muscle spasm
  5. irregular heartbeats
  6. irritability
  7. large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or genitals
  8. nightmares
  9. restlessness
  10. shaking
  11. trouble breathing
  12. unusual excitement, nervousness, restlessness, or irritability

Incidence not known

  1. Changes in patterns and rhythms of speech
  2. chills
  3. clay-colored stools
  4. dark urine
  5. decrease in frequency of urination
  6. decrease in urine volume
  7. difficulty in passing urine (dribbling)
  8. fever
  9. headache
  10. inability to move the eyes
  11. increased blinking or spasms of the eyelid
  12. itching or rash
  13. loss of appetite
  14. loss of bladder control
  15. nausea
  16. painful urination
  17. seizures
  18. shakiness in the legs, arms, hands, or feet
  19. slurred speech
  20. sticking out of the tongue
  21. stomach pain
  22. trembling or shaking of the hands or feet
  23. trouble in speaking or swallowing
  24. uncontrolled twisting movements of the neck, trunk, arms, or legs
  25. unpleasant breath odor
  26. unusual facial expressions
  27. unusual tiredness or weakness
  28. vomiting of blood
  29. yellow eyes or skin

Get emergency help immediately if any of the following symptoms of overdose occur:

Symptoms of overdose

  1. Agitation
  2. change in consciousness
  3. changes in patterns and rhythms of speech
  4. confusion
  5. loss of consciousness
  6. loss of strength or energy
  7. mood or mental changes
  8. nightmares
  9. shakiness and unsteady walk
  10. sleepiness or unusual drowsiness
  11. slurred speech
  12. talkativeness
  13. trouble speaking
  14. unsteadiness, trembling, or other problems with muscle control or coordination
  15. unusual drowsiness, dullness, tiredness, weakness, or feeling of sluggishness
  16. unusual excitement, nervousness, restlessness, or irritability
  17. unusual weak feeling

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:

Less common

  1. Acid or sour stomach
  2. belching
  3. heartburn
  4. indigestion
  5. stomach discomfort or upset

Incidence not known

  1. Decreased interest in sexual intercourse
  2. inability to have or keep an erection
  3. increase in sexual ability, desire, drive, or performance
  4. increased interest in sexual intercourse
  5. loss in sexual ability, desire, drive, or performance
  6. menstrual changes
  7. sweating
  8. vomiting

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.