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. Fast heartbeat

Less common

  1. Chest pain
  2. fever
  3. joint pain
  4. skin rash or hives


  1. Black, tarry stools
  2. blood in the urine or stools
  3. blurred vision or other changes in vision
  4. crusting, dryness, or flaking of the skin
  5. muscle cramps
  6. pinpoint red spots on the skin
  7. scaling, severe redness, soreness, or swelling of the skin
  8. seizures
  9. uncontrolled vocal outbursts or tics (uncontrolled and repeated body movements)
  10. unusual bleeding or bruising

Incidence not known

  1. Agitation
  2. arm, back or jaw pain
  3. bleeding gums
  4. bloody nose
  5. chest discomfort, tightness, or heaviness
  6. chills
  7. clenching, gnashing, or grinding teeth
  8. confusion
  9. cough
  10. dark urine
  11. decreased interest in sexual intercourse
  12. diarrhea
  13. difficulty with speaking
  14. difficulty with swallowing
  15. discouragement
  16. dizziness
  17. double vision
  18. drowsiness
  19. fainting
  20. fast, pounding, or irregular heartbeat or pulse
  21. feeling like surroundings are not real
  22. feeling sad or empty
  23. feeling that others are watching you or controlling your behavior
  24. feeling that others can hear your thoughts
  25. feeling, seeing, or hearing things that are not there
  26. headache
  27. heavier menstrual periods
  28. inability to have or keep an erection
  29. inability to move the arms, legs, or facial muscles
  30. inability to speak
  31. irritability
  32. itching skin
  33. large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or genitals
  34. loss in sexual ability, desire, drive, or performance
  35. loss of interest or pleasure
  36. mood swings
  37. muscle pain, stiffness, or spasms
  38. nausea
  39. nervousness
  40. numbness of the hands
  41. overactive reflexes
  42. painful or difficult urination
  43. pale skin
  44. paleness or cold feeling in the fingertips and toes
  45. poor coordination
  46. pounding in the ears
  47. puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  48. red, irritated eyes
  49. red, swollen, or scaly skin
  50. redness, soreness, or itching skin
  51. restlessness
  52. right upper stomach tenderness
  53. seeing, hearing, or feeling things that are not there
  54. severe or sudden headache
  55. shivering
  56. slow speech
  57. slowed growth in children
  58. sore throat
  59. sores, ulcers, or white spots on the lips or in the mouth
  60. stuffy or runny nose
  61. sudden loss of coordination
  62. sudden slurring of speech
  63. sweating
  64. swollen glands
  65. talking or acting with excitement you cannot control
  66. tingling or pain in the fingers or toes when exposed to cold temperatures
  67. trembling or shaking
  68. tremor
  69. trouble concentrating
  70. trouble sleeping
  71. trouble breathing
  72. twitching, twisting, or uncontrolled repetitive movements of the tongue, lips, face, arms, or legs
  73. unusual behavior
  74. unusual tiredness or weakness
  75. weight loss
  76. yellow skin or eyes

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

Symptoms of overdose

  1. Agitation
  2. anxiety
  3. bigger, dilated, or enlarged pupils of the eyes
  4. blurred vision
  5. change in consciousness
  6. chest pain or discomfort
  7. confusion as to time, place, or person
  8. dark urine
  9. diarrhea
  10. dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
  11. dry eyes, mouth, nose, or throat
  12. false or unusual sense of well-being
  13. fast, slow, irregular, pounding, or racing heartbeat or pulse
  14. fever
  15. headache
  16. holding false beliefs that cannot be changed by fact
  17. inability to speak
  18. increased sensitivity of the eyes to light
  19. loss of consciousness
  20. muscle pain, cramps, stiffness, or twitching
  21. nausea
  22. nervousness
  23. overactive reflexes
  24. pain or discomfort in the arms, jaw, back, or neck
  25. pale, clammy skin
  26. palpitations
  27. pounding in the ears
  28. rapid, shallow breathing
  29. seeing, hearing, or feeling things that are not there
  30. seizures
  31. shivering
  32. slurred speech
  33. sweating
  34. talking or acting with excitement you cannot control
  35. temporary blindness
  36. thirst
  37. trembling or shaking
  38. trouble breathing
  39. unusual excitement, nervousness, or restlessness
  40. unusual tiredness or weakness
  41. vomiting
  42. weakness in the arm or leg on one side of the body, sudden and severe

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. Loss of appetite
  2. stomach pain

Less common

  1. Acid or sour stomach
  2. anger
  3. belching
  4. fear
  5. heartburn
  6. indigestion
  7. irritability
  8. scalp hair loss
  9. stomach discomfort or upset
  10. 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.

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