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 immediately if any of the following side effects occur:

Less common

  1. Shakiness and unsteady walk
  2. unsteadiness, trembling, or other problems with muscle control or coordination


  1. Being forgetful
  2. burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
  3. continuing ringing or buzzing or other unexplained noise in the ears
  4. discouragement
  5. false or unusual sense of well-being
  6. fast, pounding, or irregular heartbeat or pulse
  7. feeling sad or empty
  8. hearing loss
  9. irritability
  10. lack of appetite
  11. loss of interest or pleasure
  12. nightmares
  13. tiredness
  14. trouble concentrating
  15. trouble sleeping

Incidence not known

  1. Abdominal or stomach pain
  2. actions that are out of control
  3. aggressiveness
  4. anxiety
  5. changes in patterns and rhythms of speech
  6. chest pain
  7. chills
  8. clay-colored stools
  9. confusion about identity, place, and time
  10. dark urine
  11. decrease in frequency of urination
  12. decrease in urine volume
  13. difficulty in passing urine (dribbling)
  14. dizziness
  15. drowsiness
  16. dry mouth
  17. environment seems unreal
  18. fainting
  19. falling
  20. false beliefs that cannot be changed by facts
  21. feeling of unreality
  22. fever
  23. headache
  24. hyperventilation
  25. inability to move the eyes
  26. increased blinking or spasms of the eyelid
  27. increased muscle spasm
  28. irregular heartbeats
  29. loss of bladder control
  30. loss of memory
  31. nausea
  32. nervousness
  33. nightmares
  34. painful urination
  35. problems with memory
  36. rash
  37. relaxed and calm
  38. restlessness
  39. seeing, hearing, or feeling things that are not there
  40. sense of detachment from self or body
  41. sleep walking
  42. sleepiness
  43. slurred speech
  44. sticking out of tongue
  45. talking, feeling, and acting with excitement
  46. trouble breathing, speaking, or swallowing
  47. uncontrolled twisting movements of the neck, trunk, arms, or legs
  48. unpleasant breath odor
  49. unusual excitement, nervousness, restlessness, or irritability
  50. unusual facial expressions
  51. unusual tiredness or weakness
  52. vomiting of blood
  53. yellow eyes or skin

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. Lightheadedness


  1. Any change in vision
  2. blistering, crusting, irritation, itching, or reddening of the skin
  3. change in taste, or bad, unusual, or unpleasant (after) taste
  4. cracked, dry, or scaly skin
  5. cramps
  6. diarrhea
  7. difficulty having a bowel movement (stool)
  8. dry mouth
  9. swelling
  10. weakness

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. increase interest in sexual intercourse
  5. itching skin
  6. loss in sexual ability, desire, drive, or performance
  7. menstrual changes
  8. redness, swelling, or soreness of the tongue
  9. swelling or inflammation of the mouth
  10. 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.