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. Bladder pain
  2. bloating or swelling of the face, arms, hands, lower legs, or feet
  3. bloody or cloudy urine
  4. decreased urine
  5. difficult, burning, or painful urination
  6. dry mouth
  7. fever
  8. frequent urge to urinate
  9. increased thirst
  10. irregular heartbeat
  11. loss of appetite
  12. lower back or side pain
  13. mood changes
  14. muscle pain or cramps
  15. nausea
  16. numbness or tingling in the hands, feet, or lips
  17. rapid weight gain
  18. seizures
  19. unusual tiredness or weakness
  20. unusual weight gain or loss
  21. vomiting

Less common

  1. Change in the frequency of urination or amount of urine
  2. difficulty with breathing
  3. drowsiness
  4. weakness

Rare

  1. Hives
  2. redness or other discoloration of the skin
  3. scaling or welting of the skin
  4. skin rash

Incidence not known

  1. Black, tarry stools
  2. bleeding gums
  3. blistering, peeling, or loosening of the skin
  4. blurred vision
  5. chills
  6. confusion
  7. continuing ringing or buzzing or other unexplained noise in the ears
  8. cough
  9. diarrhea
  10. difficulty with swallowing
  11. dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
  12. fast heartbeat
  13. feeling of constant movement of self or surroundings
  14. feeling of fullness in the ears
  15. hearing loss
  16. itching
  17. joint or muscle pain
  18. loss of balance
  19. lower back or side pain
  20. pale skin
  21. pinpoint red spots on the skin
  22. puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  23. red skin lesions, often with a purple center
  24. red, irritated eyes
  25. ringing or buzzing in the ears
  26. sensation of spinning
  27. sore throat
  28. sores, ulcers, or white spots in the mouth or on the lips
  29. sweating
  30. tightness in the chest
  31. troubled breathing with exertion
  32. unusual bleeding or bruising

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. bitter or unpleasant taste
  3. excess air or gas in the stomach or bowels
  4. headache
  5. mouth irritation
  6. passing gas
  7. stomach pain

Incidence not known

  1. Depression
  2. difficulty having a bowel movement
  3. trouble sleeping

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.