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. Blurred vision
  2. burning, numbness, tingling, or painful sensations
  3. confusion
  4. decreased urination
  5. difficulty with breathing or swallowing
  6. dizziness
  7. dry mouth
  8. fainting
  9. headache
  10. increase in heart rate
  11. lightheadedness
  12. nervousness
  13. pain in the chest, groin, or legs, especially the calves
  14. pounding in the ears
  15. rapid breathing
  16. redness, swelling, or pain of the skin
  17. scaling of the skin on the hands and feet
  18. severe, sudden headache
  19. skin ulcers
  20. slow or fast heartbeat
  21. slurred speech
  22. sudden loss of coordination
  23. sudden, severe weakness or numbness in the arm or leg
  24. sunken eyes
  25. thirst
  26. unsteadiness or awkwardness
  27. unusual tiredness or weakness
  28. vision changes
  29. weakness in the arms, hands, legs, or feet
  30. wrinkled skin

Less common

  1. Bleeding gums
  2. bloody, black, or tarry stools
  3. coughing up blood
  4. heartburn
  5. heavy jaw feeling
  6. increased menstrual flow or vaginal bleeding
  7. indigestion
  8. loosening of a tooth
  9. nausea
  10. nosebleeds
  11. pain, swelling, or numbness in the mouth or jaw
  12. paralysis
  13. prolonged bleeding from cuts
  14. red or dark brown urine
  15. severe abdominal or stomach pain, cramping, or burning
  16. trouble breathing
  17. vomiting of material that looks like coffee grounds, severe and continuing

Rare

  1. Disturbed color perception
  2. double vision
  3. halos around lights
  4. night blindness
  5. overbright appearance of lights
  6. seizures
  7. tunnel vision

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. Belching
  2. bleeding after defecation
  3. change in taste
  4. changes in hair color
  5. decreased appetite
  6. decreased weight
  7. diarrhea
  8. difficulty having a bowel movement
  9. difficulty with moving
  10. dry skin
  11. fear
  12. hair loss or thinning of the hair
  13. hoarseness
  14. lack or loss of strength
  15. loss of taste
  16. muscle pain, spasm, or stiffness
  17. pain in the joints
  18. rash
  19. sore throat
  20. stomach discomfort, upset, or pain
  21. swelling or inflammation of the mouth
  22. uncomfortable swelling around the anus
  23. voice changes
  24. 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.