Side Effects

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. Black, tarry stools
  2. bladder pain
  3. bleeding gums
  4. bloating or swelling of the face, arms, hands, lower legs, or feet
  5. blood in the urine or stools
  6. bloody nose
  7. body aches or pain
  8. burning, numbness, tingling, or painful sensations
  9. chest pain
  10. chills
  11. cloudy urine
  12. confusion
  13. constipation
  14. cough
  15. decreased or increased urination
  16. difficult, burning, or painful urination
  17. difficulty with breathing
  18. discouragement
  19. dizziness
  20. dry mouth
  21. ear congestion
  22. fast or irregular heartbeat
  23. feeling sad or empty
  24. fever
  25. frequent urge to urinate
  26. headache
  27. incoherent speech
  28. increased thirst
  29. irritability
  30. lack of appetite
  31. loss of appetite
  32. loss of interest or pleasure
  33. loss of voice
  34. lower back or side pain
  35. metallic taste
  36. muscle pain or cramps
  37. muscle weakness
  38. nasal congestion
  39. nausea
  40. numbness or tingling in the hands, feet, or lips
  41. pain
  42. pale skin
  43. pinpoint red spots on the skin
  44. rapid weight gain
  45. runny nose
  46. shakiness in the legs, arms, hands, or feet
  47. sneezing
  48. sore throat
  49. stomach pain
  50. tightness in the chest
  51. trembling or shaking of the hands or feet
  52. trouble concentrating
  53. trouble sleeping
  54. troubled breathing with exertion
  55. ulcers, sores, or white spots in the mouth
  56. unsteadiness or awkwardness
  57. unusual bleeding or bruising
  58. unusual weight gain or loss
  59. vomiting
  60. weakness in the arms, hands, legs, or feet

Less common

  1. Anxiety
  2. dizziness or lightheadedness
  3. fainting
  4. pain, redness, or swelling in the arm or leg
  5. troubled breathing

Incidence not known

  1. Blistering, peeling, or loosening of the skin
  2. diarrhea
  3. difficulty in passing urine (dribbling)
  4. itching
  5. joint pain
  6. red skin lesions, often with a purple center
  7. red, irritated eyes
  8. unusual tiredness or weakness
  9. weakness or heaviness of the legs
  10. 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. Back pain
  2. blurred vision
  3. decreased appetite
  4. difficulty with moving
  5. flushed, dry skin
  6. fruit-like breath odor
  7. increased hunger
  8. increased sweating
  9. lack or loss of strength
  10. muscle spasms or stiffness
  11. night sweats
  12. rash

Incidence not known

  1. Feeling of constant movement of self or surroundings
  2. sensation of spinning

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.