Side Effects

Drug information provided by: Merative, Micromedex®

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:

Less common

  1. Arm, back, or jaw pain
  2. blurred vision
  3. chest pain, discomfort, tightness, or heaviness
  4. chills
  5. cold sweats
  6. confusion
  7. dizziness
  8. fainting
  9. faintness or lightheadedness when getting up suddenly from a lying or sitting position
  10. fast or irregular heartbeat
  11. headache
  12. hearing loss
  13. increased erection
  14. nausea
  15. nervousness
  16. pain or discomfort in the arms, jaw, back, or neck
  17. pounding in the ears
  18. slow or fast heartbeat
  19. spontaneous penile erection
  20. sweating
  21. unusual tiredness or weakness
  22. vomiting


  1. Painful or prolonged erection of the penis

Incidence not known

  1. Blindness
  2. blistering, peeling, or loosening of the skin
  3. cough
  4. cracks in the skin
  5. decrease or change in vision
  6. diarrhea
  7. difficulty with speaking
  8. double vision
  9. fast, irregular, pounding, or racing heartbeat or pulse
  10. headache, severe and throbbing
  11. hives or welts, itching, skin rash
  12. inability to move the arms, legs, or facial muscles
  13. inability to speak
  14. joint or muscle pain
  15. loss of heat from the body
  16. numbness or tingling of the face, hands, or feet
  17. red skin lesions, often with a purple center
  18. red, irritated eyes
  19. red, swollen skin
  20. redness of the skin
  21. redness or soreness of the eyes
  22. scaly skin
  23. slow speech
  24. sores, ulcers, or white spots in the mouth or on the lips
  25. stomach pain
  26. sudden cardiac death
  27. swelling of the feet or lower legs

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. heartburn
  3. indigestion
  4. stomach discomfort, upset, or pain

Less common

  1. Bloody nose
  2. body aches or pain
  3. burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
  4. burning, dry, or itching eyes
  5. burning feeling in the chest or stomach
  6. congestion
  7. difficulty with moving
  8. difficulty with swallowing
  9. dry mouth
  10. dryness or soreness of the throat
  11. excessive eye discharge
  12. eye pain
  13. feeling of constant movement of self or surroundings
  14. feeling of warmth, redness of the face, neck, arms and occasionally, upper chest
  15. fever
  16. hoarseness
  17. lack or loss of strength
  18. loose stools
  19. muscle aching, cramping, or stiffness
  20. neck pain
  21. pain in the arms or legs
  22. pain or burning in the throat
  23. redness, pain, swelling of the eye, eyelid, or inner lining of the eyelid
  24. reduced sensitivity to touch
  25. runny or stuffy nose
  26. sensation of spinning
  27. sleepiness or unusual drowsiness
  28. stomach upset
  29. swelling of the eyelids
  30. swelling or puffiness of the eyes or face
  31. swollen joints
  32. tearing
  33. tender, swollen glands in the neck
  34. tenderness in the stomach area
  35. trouble with sleeping
  36. upper stomach pain
  37. voice changes
  38. watering of the eyes


  1. Changes in color vision

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.

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