Side Effects

Drug information provided by: IBM 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:

More common

  1. Black, tarry stools
  2. chills
  3. dark urine
  4. dizziness
  5. fever
  6. headache
  7. itching, skin rash
  8. light-colored stools
  9. loss of appetite
  10. nausea
  11. stomach pain
  12. unpleasant breath odor
  13. unusual tiredness or weakness
  14. vomiting of blood
  15. yellow eyes or skin


  1. Cough
  2. fever with or without chills
  3. general feeling of tiredness or weakness
  4. hoarseness
  5. lower back or side pain
  6. painful or difficult urination
  7. sore throat
  8. sores, ulcers, or white spots on the lips or in the mouth
  9. unusual bleeding or bruising

Incidence not known

  1. Back, leg, or stomach pains
  2. bleeding gums
  3. bloating
  4. blood in the urine or stools
  5. blue lips and fingernails
  6. blurred vision
  7. burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
  8. chest pain or discomfort
  9. cloudy urine
  10. clumsiness
  11. confusion
  12. constipation
  13. coughing that sometimes produces a pink frothy sputum
  14. decreased awareness or responsiveness
  15. decreased frequency or amount of urine
  16. difficult or labored breathing
  17. difficult, fast, noisy breathing
  18. difficulty in passing urine (dribbling)
  19. difficulty with swallowing
  20. dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
  21. drowsiness
  22. dry mouth
  23. extremely shallow or slow breathing
  24. fainting
  25. fast or deep breathing
  26. fast, slow, irregular, pounding, or racing heartbeat
  27. feeling of warmth
  28. general body swelling
  29. hives or welts
  30. increased sweating
  31. increased thirst
  32. indigestion
  33. large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or genitals
  34. lightheadedness
  35. muscle aches, tremors, or weakness
  36. nervousness
  37. nosebleeds
  38. pains in the stomach, side, or abdomen, possibly radiating to the back
  39. pale skin
  40. pinpoint red spots on the skin
  41. pounding in the ears
  42. puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  43. rapid, deep or shallow breathing
  44. redness of the face, neck, arms, and occasionally, upper chest
  45. restlessness
  46. seizures
  47. severe constipation
  48. severe sleepiness
  49. severe vomiting
  50. skin blisters
  51. sleepiness
  52. stomach cramps
  53. sunken eyes
  54. sweating
  55. swelling of the face, fingers, lower legs, or ankles
  56. thirst
  57. tightness in the chest
  58. tiredness
  59. vomiting
  60. weakness or heaviness of the legs
  61. weight gain

Get emergency help immediately if any of the following symptoms of overdose occur:

Symptoms of overdose

  1. Bluish lips or skin
  2. change in consciousness
  3. cold, clammy skin
  4. extreme sleepiness
  5. general feeling of discomfort or illness
  6. loss of consciousness
  7. low blood pressure or pulse
  8. slow breathing
  9. unconsciousness

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. Relaxed and calm feeling

Incidence not known

  1. Agitation
  2. bad, unusual or unpleasant (after) taste
  3. belching
  4. change in taste
  5. cold sweats
  6. constricted, pinpoint, or small pupils (black part of the eye)
  7. continuing ringing or buzzing or other unexplained noise in the ears
  8. cool, pale skin
  9. depression
  10. diarrhea
  11. difficulty with moving
  12. disturbed color perception
  13. double vision
  14. excess air or gas in the stomach or bowels
  15. false or unusual sense of well-being
  16. flushed, dry skin
  17. fruit-like breath odor
  18. full feeling
  19. general feeling of discomfort or illness
  20. halos around lights
  21. hearing loss
  22. heartburn
  23. increased hunger
  24. increased urination
  25. indigestion
  26. joint pain
  27. lack or loss of strength
  28. muscle cramps, spasms, pain, or stiffness
  29. night blindness
  30. nightmares
  31. overbright appearance of lights
  32. seeing, hearing, or feeling things that are not there
  33. seizures
  34. shakiness
  35. slurred speech
  36. stomach discomfort, upset, or pain
  37. swollen joints
  38. trouble sleeping
  39. tunnel vision
  40. unexplained weight loss
  41. unusual drowsiness, dullness, tiredness, weakness, or feeling of sluggishness

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.