Side Effects

Drug information provided by: IBM 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:


  1. Convulsions
  2. difficulty in breathing
  3. fast heartbeat
  4. high fever
  5. high or low blood pressure
  6. inability to move the eyes
  7. increased blinking or spasms of the eyelid
  8. increased sweating
  9. loss of bladder control
  10. seeing, hearing, or feeling things that are not there
  11. severe muscle stiffness
  12. sticking out of the tongue
  13. tiredness
  14. trouble in breathing, speaking, or swallowing
  15. uncontrolled twisting movements of the neck, trunk, arms, or legs
  16. unusual facial expressions
  17. unusually pale skin

Incidence not known

  1. Abdominal or stomach pain or tenderness
  2. black, tarry stools
  3. bluish-colored lips, fingernails, or palms
  4. blurred vision
  5. chest pain or discomfort
  6. chills
  7. clay colored stools
  8. confusion
  9. cough or hoarseness
  10. dark urine
  11. decrease in the amount of urine
  12. decreased appetite
  13. decreased urine output
  14. difficulty in swallowing
  15. dilated neck veins
  16. dizziness or lightheadedness
  17. dizziness, faintness, or lightheadedness when getting up from a lying or sitting position suddenly
  18. extreme fatigue
  19. fainting
  20. fast, slow, pounding, or irregular heartbeat or pulse
  21. fatigue
  22. feeling of warmth
  23. fever with or without chills
  24. fluid-filled skin blisters
  25. general feeling of tiredness or weakness
  26. headache
  27. inability to sit still
  28. increased need to urinate
  29. incremental or ratchet-like movement of the muscle
  30. itching of the skin
  31. large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
  32. light-colored stools
  33. loss of appetite
  34. loss of balance control
  35. lower back or side pain
  36. mask-like face
  37. mental depression
  38. mood or mental changes
  39. muscle discomfort
  40. nausea and vomiting
  41. need to keep moving
  42. nervousness
  43. noisy, rattling breathing
  44. painful or difficult urination
  45. pale skin
  46. palpitations
  47. passing urine more often
  48. pounding in the ears
  49. pounding, slow heartbeat
  50. rapid heart rate
  51. redness of the face, neck, arms and occasionally, upper chest
  52. restlessness of the arms legs, hands, or feet
  53. rigid or stiff muscles
  54. sensitivity to the sun
  55. shakiness in the legs, arms, hands, or feet
  56. shortness of breath
  57. shuffling walk
  58. skin rash
  59. skin thinness
  60. slow movement
  61. slow or irregular breathing
  62. slow reflexes
  63. slowed movements
  64. slurred speech
  65. sore throat and fever
  66. sores, ulcers, or white spots on the lips or in the mouth
  67. stiffness of the arms and legs
  68. sweating
  69. swelling of the face, fingers, feet, or lower legs
  70. thoughts of killing oneself changes in behavior
  71. tic-like (jerky) movements of the head, face, mouth, and neck
  72. tightness in the chest
  73. trembling and shaking of the fingers and hands
  74. troubled breathing at rest
  75. unusual bleeding or bruising
  76. unusual tiredness or weakness
  77. weight gain
  78. wheezing
  79. yellow eyes or skin

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

Symptoms of overdose

  1. Confusion about identity, place, and time
  2. drowsiness

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:

Incidence not known

  1. Absent, missed, or irregular menstrual periods
  2. blurred or loss of vision
  3. cough
  4. decreased interest in sexual intercourse
  5. diarrhea
  6. disturbed color perception
  7. double vision
  8. halos around lights
  9. hives or welts
  10. inability to have or keep an erection
  11. itching
  12. loss in sexual ability, desire, drive, or performance
  13. loss of strength or energy
  14. muscle pain or weakness
  15. night blindness
  16. noisy breathing
  17. overbright appearance of lights
  18. redness of the skin
  19. sleeplessness
  20. stopping of menstrual bleeding
  21. swelling of the breasts or unusual milk production
  22. swelling of the breasts or breast soreness in both females and males
  23. trouble sleeping
  24. tunnel vision
  25. unable to sleep
  26. unexpected or excess milk flow from the breasts
  27. unusual weak feeling

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.