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:

Less common

  1. Excitement
  2. fast, irregular, pounding, or racing heartbeat or pulse
  3. fear or nervousness
  4. mood or mental changes
  5. nightmares
  6. restlessness
  7. shakiness and unsteady walk
  8. shakiness in legs, arms, hands, or feet
  9. sleeplessness
  10. swelling
  11. trouble sleeping
  12. unable to sleep
  13. unsteadiness, trembling, or other problems with muscle control or coordination


  1. Abdominal or stomach pain
  2. actions that are out of control
  3. black, tarry stools
  4. bleeding gums
  5. bloating
  6. blood in urine or stools
  7. blurred vision
  8. burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
  9. chest pain or discomfort
  10. chills
  11. clay-colored stools
  12. confusion
  13. confusion about identity, place, and time
  14. constipation
  15. continuing ringing or buzzing or other unexplained noise in ears
  16. convulsions
  17. cough or hoarseness
  18. dark urine
  19. decrease in frequency of urination
  20. decrease in urine volume
  21. difficulty in breathing
  22. difficulty in passing urine (dribbling)
  23. difficulty in speaking
  24. disturbed concentration
  25. dizziness, faintness, or lightheadedness when getting up from a lying or sitting position suddenly
  26. double vision
  27. drooling
  28. extremely high fever or body temperature
  29. false beliefs that cannot be changed by facts
  30. fast, weak heartbeat
  31. fever with or without chills
  32. general feeling of tiredness or weakness
  33. headache
  34. hearing loss
  35. high fever
  36. high or low blood pressure
  37. hives or welts
  38. inability to move arms, legs, or facial muscles
  39. inability to speak
  40. increased need to urinate
  41. increased sweating
  42. indigestion
  43. irritability
  44. itching
  45. lack of coordination
  46. light-colored stools
  47. lip smacking or puckering
  48. loss of appetite
  49. loss of bladder control
  50. lower back or side pain
  51. muscle cramps
  52. muscle spasm or jerking of all extremities
  53. muscle trembling, jerking, or stiffness
  54. nausea and vomiting
  55. nervousness
  56. numbness
  57. pain or discomfort in arms, jaw, back, or neck
  58. painful or difficult urination
  59. pains in stomach, side, or abdomen, possibly radiating to the back
  60. pale, clammy skin
  61. passing urine more often
  62. pinpoint red spots on skin
  63. pounding in the ears
  64. puffing of cheeks
  65. rapid or worm-like movements of tongue
  66. redness of skin
  67. seeing, hearing, or feeling things that are not there
  68. severe muscle stiffness
  69. shortness of breath
  70. shuffling walk
  71. skin rash
  72. slow speech
  73. sore throat
  74. sores, ulcers, or white spots on lips or in mouth
  75. stiffness of limbs
  76. sudden loss of consciousness
  77. sweating
  78. swollen glands
  79. talking, feeling, and acting with excitement
  80. testicular swelling
  81. thirst
  82. trouble in holding or releasing urine
  83. twisting movements of body
  84. uncontrolled chewing movements
  85. uncontrolled movements, especially of face, neck, and back
  86. unpleasant breath odor
  87. unusual bleeding or bruising
  88. unusually pale skin
  89. upper right abdominal pain
  90. vomiting of blood
  91. yellow eyes and skin

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

Symptoms of overdose

  1. Change in consciousness
  2. drowsiness
  3. epileptic seizure that will not stop
  4. fatigue
  5. increased blood pressure
  6. increased thirst
  7. loss of consciousness
  8. swelling of face, fingers, or lower legs
  9. total body jerking
  10. troubled breathing
  11. weight gain

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. Dry mouth

Less common

  1. Increased appetite
  2. increased flow of breast milk


  1. Agitation
  2. breast enlargement
  3. change in taste bad unusual or unpleasant (after)taste
  4. decreased interest in sexual intercourse
  5. depression
  6. excess air or gas in stomach or intestines
  7. full feeling
  8. hair loss, thinning of hair
  9. heartburn
  10. inability to have or keep an erection
  11. increased in sexual ability, desire, drive, or performance
  12. increased interest in sexual intercourse
  13. increased sensitivity of skin to sunlight
  14. loss in sexual ability, desire, drive, or performance
  15. menstrual changes
  16. nasal stuffiness
  17. painful ejaculation
  18. passing gas
  19. rapid weight gain
  20. redness or other discoloration of skin
  21. seizures
  22. severe sunburn
  23. stupor
  24. swollen, painful, or tender lymph glands on side of face or neck
  25. tearing of the eyes
  26. unexpected or excess milk flow from breasts

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.