Side Effects

Drug information provided by: 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. Chills
  2. cold sweats
  3. confusion
  4. difficult or labored breathing
  5. dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
  6. fever
  7. tightness in the chest
  8. twitching


  1. Abdominal or stomach pain
  2. bloating or swelling of the face, arms, hands, lower legs, or feet
  3. blood in the urine
  4. burning while urinating burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
  5. chest pain
  6. convulsions
  7. cough
  8. decrease in the frequency of urination
  9. decrease in urine volume
  10. decreased urine output
  11. difficult or painful urination
  12. difficulty in passing urine (dribbling)
  13. difficulty with swallowing
  14. dizziness
  15. dry mouth
  16. fainting
  17. fast, irregular, pounding, or racing heartbeat or pulse
  18. feeling of warmth or heat
  19. flushing or redness of the skin, especially on the face and neck
  20. frequent urination
  21. headache
  22. hives
  23. increase in heart rate
  24. increased thirst
  25. increased volume of pale, dilute urine
  26. itching
  27. lightheadedness
  28. muscle pain or cramps
  29. nausea or vomiting
  30. puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  31. rapid breathing
  32. rapid weight gain
  33. severe constipation
  34. severe vomiting
  35. shakiness in the legs, arms, hands, or feet
  36. skin rash
  37. sunken eyes
  38. sweating
  39. swelling or puffiness of the face
  40. swollen, painful, or tender lymph glands in the neck, armpit, or groin
  41. thirst
  42. tingling of the hands or feet
  43. trembling or shaking of the hands or feet
  44. unusual tiredness or weakness
  45. unusual weight gain or loss
  46. wrinkled skin

Incidence not known

  1. Blurred vision
  2. choking
  3. clay-colored stools
  4. cold, clammy skin
  5. dark urine
  6. diarrhea
  7. fast, weak pulse
  8. gagging
  9. irregular, fast, slow, or shallow breathing
  10. loss of appetite
  11. low blood pressure or pulse
  12. pale or blue lips, fingernails, or skin
  13. unconsciousness
  14. unpleasant breath odor
  15. very slow breathing
  16. very slow heartbeat
  17. yellow eyes or skin

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

Symptoms of overdose

  1. Change in consciousness
  2. chest pain or discomfort
  3. constricted, pinpoint, or small pupils (black part of the eye)
  4. decreased awareness or responsiveness
  5. extreme drowsiness
  6. loss of consciousness
  7. no muscle tone or movement
  8. severe sleepiness
  9. slow or irregular heartbeat

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. Difficulty having a bowel movement (stool)
  2. drowsiness
  3. lack or loss of strength
  4. relaxed and calm feeling
  5. sleepiness or unusual drowsiness

Less common

  1. Abnormal dreams
  2. acid or sour stomach
  3. anxiety
  4. belching
  5. burning feeling in the chest or stomach
  6. false or unusual sense of well-being
  7. heartburn
  8. hiccups
  9. indigestion
  10. stomach discomfort, upset, or pain
  11. tenderness in the stomach area
  12. trouble sleeping
  13. weight loss


  1. Absent, missed, or irregular menstrual periods
  2. bad, unusual or unpleasant (after) taste
  3. bloated or full feeling
  4. body aches or pain
  5. change in taste
  6. change in walking and balance
  7. changes in vision
  8. clumsiness or unsteadiness
  9. congestion
  10. continuing ringing or buzzing or other unexplained noise in the ears
  11. cracks in the skin
  12. crying
  13. decreased interest in sexual intercourse
  14. dental caries or tooth decay
  15. depersonalization
  16. depression
  17. difficulty with speaking
  18. dry skin
  19. dryness or soreness of the throat
  20. dysphoria
  21. excess air or gas in the stomach or intestines
  22. excessive muscle tone
  23. feeling of constant movement of self or surroundings
  24. feeling of unreality
  25. general feeling of discomfort or illness
  26. headache, severe and throbbing
  27. hearing loss
  28. hives or welts
  29. hoarseness
  30. hyperventilation
  31. inability to have or keep an erection
  32. increase in body movements
  33. increased appetite
  34. increased cough
  35. irritability
  36. loss in sexual ability, desire, drive, or performance
  37. loss of heat from the body
  38. loss of memory
  39. loss of strength or energy
  40. mental depression
  41. muscle pain or weakness
  42. muscle stiffness
  43. muscle tension or tightness
  44. neck pain
  45. paranoia
  46. passing of gas
  47. problems with memory
  48. quick to react or overreact emotionally
  49. rapidly changing moods
  50. red, swollen skin
  51. restlessness
  52. runny nose
  53. scaly skin
  54. sensation of spinning
  55. sense of detachment from self or body
  56. severe sleepiness
  57. stomach pain, fullness, or discomfort
  58. stopping of menstrual bleeding
  59. swelling or inflammation of the mouth
  60. tender, swollen glands in the neck
  61. unusual weak feeling
  62. voice changes

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.