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 or nurse immediately if any of the following side effects occur:

More common

  1. Bloody, black, or tarry stools
  2. diarrhea
  3. fever
  4. heartburn
  5. indigestion
  6. itching, skin rash
  7. nausea
  8. severe stomach pain, cramping, or burning
  9. unusual tiredness or weakness
  10. vomiting
  11. vomiting of material that looks like coffee grounds, severe and continuing
  12. watery or bloody diarrhea

Less common

  1. Blistering, crusting, irritation, itching, or reddening of the skin
  2. bloody or cloudy urine
  3. blurred vision or other changes in vision
  4. burning, dry, or itching eyes
  5. burning, tingling, numbness or pain in the hands, arms, feet, or legs
  6. chest pain
  7. chills
  8. clay-colored stools
  9. cough
  10. cracked, dry, or scaly skin
  11. dark urine
  12. darkening of the skin
  13. decreased appetite
  14. decreased frequency or amount of urine
  15. difficulty with breathing, chewing, swallowing, or talking
  16. dizziness
  17. double vision
  18. drooping eyelids
  19. drowsiness
  20. eye discharge or excessive tearing
  21. eye pain or sensitivity to light
  22. fainting
  23. headache, possibly severe
  24. hives or welts
  25. loss of appetite
  26. mental depression
  27. muscle weakness
  28. pain, itching, burning, swelling, bleeding, or a lump under the skin where the needle was placed
  29. painful or difficult urination
  30. redness, pain, or swelling of the eye, eyelid, or inner lining of the eyelid
  31. sensation of pins and needles
  32. severe tiredness
  33. sore throat
  34. sores, ulcers, or white spots on the lips or in the mouth
  35. stabbing pain
  36. stomach tenderness
  37. swelling of the face, feet, or lower legs
  38. swollen glands
  39. unusual bleeding or bruising
  40. unusual weight gain
  41. yellow eyes or skin

Rare

  1. Anxiety
  2. bloating
  3. blue or pale skin
  4. chest pain, possibly moving to the left arm, neck, or shoulder
  5. confusion
  6. constipation
  7. difficulty with moving
  8. fast heartbeat
  9. general feeling of discomfort or illness
  10. increased thirst
  11. lower back or side pain
  12. muscle pain or stiffness
  13. muscle weakness
  14. pain or burning in the throat
  15. pain, swelling, or redness in the joints
  16. pains in the stomach or side, possibly radiating to the back
  17. skin irritation or rash, including rash that looks like psoriasis
  18. sores, welts, or blisters on the skin
  19. stiff neck or back

Incidence not known

  1. Back, leg, or stomach pains
  2. bleeding gums
  3. general body swelling
  4. inability to move the arms and legs
  5. nosebleeds
  6. throbbing pain

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. Headache
  2. trouble sleeping
  3. 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.