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. Abdominal or stomach cramps
  2. confusion
  3. convulsions
  4. decreased urine
  5. difficulty with breathing
  6. drowsiness
  7. dry mouth
  8. increased thirst
  9. irregular heartbeat
  10. loss of appetite
  11. mood or mental changes
  12. muscle cramps in the hands, arms, feet, legs, or face
  13. muscle pain or muscle spasms (tetany) or twitching
  14. nausea or vomiting
  15. numbness and tingling around the mouth, fingertips, or feet
  16. tremor
  17. unusual tiredness or weakness

Less common

  1. Anxiety
  2. back pain
  3. chest pain or discomfort
  4. chest tightness
  5. chills
  6. cough
  7. difficulty with speaking
  8. dizziness or lightheadedness
  9. double vision
  10. fainting
  11. fast heartbeat
  12. fever
  13. flushing
  14. headache
  15. heart stops
  16. inability to move the arms, legs, or facial muscles
  17. no breathing
  18. no pulse or blood pressure
  19. pain or discomfort in the arms, jaw, back, or neck
  20. pain, redness, or swelling in the arm or leg
  21. pains in the chest, groin, or legs, especially the calves of the legs
  22. severe headaches of sudden onset
  23. slow speech
  24. sudden loss of coordination
  25. sudden onset of slurred speech
  26. sudden shortness of breath or troubled breathing
  27. sudden vision changes
  28. sweating
  29. trouble breathing
  30. unconscious

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. Blemishes on the skin
  2. burning, dry, or itching eyes
  3. decreased weight
  4. diarrhea
  5. discharge or excessive tearing
  6. dry skin
  7. itching skin or rash
  8. loosening of the fingernails
  9. pimples
  10. rash with flat lesions or small raised lesions on the skin
  11. redness or soreness around the fingernails
  12. redness, pain, or swelling of the eye, eyelid, or inner lining of the eyelid
  13. swelling or inflammation of the mouth

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.