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. Blurred vision
  2. change in color vision
  3. changes in behavior
  4. confusion
  5. diarrhea
  6. hearing loss
  7. nausea
  8. ringing in the ears
  9. stomach cramps or pain
  10. vomiting

Less common

  1. Anxiety
  2. behavior change, similar to drunkenness
  3. black, tarry stools
  4. bloody urine
  5. blurred vision or change in vision
  6. chills
  7. cold sweats
  8. confusion
  9. cool pale skin
  10. cough
  11. difficulty concentrating
  12. drowsiness
  13. excessive hunger
  14. fast heartbeat
  15. fever
  16. headache
  17. hoarseness
  18. loss of consciousness
  19. lower back or side pain
  20. nervousness
  21. nightmares
  22. painful or difficult urination
  23. pinpoint red spots on the skin
  24. restless sleep
  25. seizures
  26. shakiness
  27. slurred speech
  28. sore throat
  29. unusual bleeding or bruising
  30. unusual tiredness or weakness


  1. Difficulty breathing or swallowing
  2. disturbed color perception
  3. double vision
  4. hives
  5. increased sweating
  6. muscle aches
  7. night blindness
  8. reddening of the skin, especially around ears
  9. ringing or buzzing in the ears
  10. swelling of the eyes, face, inside of the nose, fingers, feet, or lower legs

Incidence not known

  1. Back, leg, or stomach pains
  2. bleeding gums
  3. bleeding under the skin
  4. blindness
  5. blistering, peeling, or loosening of the skin
  6. bloody nose
  7. blue-yellow color blindness
  8. change in mental status
  9. chest pain
  10. cold sweats
  11. confusion
  12. cool, pale skin
  13. cough
  14. dark urine
  15. decreased frequency or amount of urine
  16. decreased vision
  17. depression
  18. diarrhea
  19. difficulty breathing
  20. difficulty in moving
  21. difficulty speaking
  22. dizziness
  23. dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
  24. eye pain
  25. fainting
  26. fast, pounding, or irregular heartbeat or pulse
  27. general body swelling
  28. general feeling of discomfort, illness, or weakness
  29. hoarseness
  30. heavier menstrual periods
  31. hoarseness
  32. increased hunger
  33. increased or decreased urination
  34. increased sensitivity of the skin to sunlight
  35. increased thirst
  36. irregular heartbeat, recurrent
  37. irritation
  38. itching, skin rash
  39. joint pain, stiffness, or swelling
  40. light-colored stools
  41. loss of appetite
  42. muscle cramps, weakness, or stiffness
  43. nervousness
  44. nightmares
  45. nosebleeds
  46. painful or difficult urination
  47. pale color of the skin
  48. pale skin
  49. red skin lesions, often with a purple center
  50. red, irritated eyes
  51. redness or other discoloration of the skin
  52. severe
  53. sunburn
  54. sores, ulcers, or white spots in the mouth or on the lips
  55. tightness in the chest
  56. troubled swallowing
  57. upper right abdominal pain
  58. weakness
  59. weight gain
  60. yellow eyes or skin

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

Symptoms of an overdose

  1. Blindness
  2. blurred vision or change in vision
  3. chest pain
  4. dizziness
  5. double vision
  6. fainting
  7. lightheadedness
  8. rapid or irregular heartbeat
  9. sleepiness

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. Feeling of warmth
  2. heartburn
  3. lack or loss of strength
  4. pain or burning in the throat
  5. problems with speech or speaking
  6. restlessness
  7. thoughts or attempts of killing oneself tremors
  8. unsteadiness, trembling, or other problems with muscle control or coordination
  9. 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.

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