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, itching, or skin rash
  23. increase in heart rate
  24. increased thirst
  25. increased volume of pale, dilute urine
  26. lightheadedness
  27. muscle pain or cramps
  28. nausea or vomiting
  29. puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  30. rapid breathing
  31. rapid weight gain
  32. severe constipation
  33. severe vomiting
  34. shakiness in the legs, arms, hands, or feet
  35. sunken eyes
  36. sweating
  37. swelling or puffiness of the face
  38. swollen, painful, or tender lymph glands in the neck, armpit, or groin
  39. thirst
  40. tingling of the hands or feet
  41. trembling or shaking of the hands or feet
  42. unusual tiredness or weakness
  43. unusual weight gain or loss
  44. 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. pale or blue lips, fingernails, or skin
  12. unconsciousness
  13. unpleasant breath odor
  14. very slow heartbeat
  15. 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. continuous ringing or buzzing or other unexplained noise in the ears
  11. crying
  12. decreased interest in sexual intercourse
  13. dental caries or tooth decay
  14. depersonalization
  15. depression
  16. difficulty with speaking
  17. dry skin
  18. dryness or soreness of the throat
  19. excess air or gas in the stomach or intestines
  20. excessive muscle tone
  21. feeling of constant movement of self or surroundings
  22. feeling of unreality
  23. general feeling of discomfort or illness
  24. headache, severe and throbbing
  25. hearing loss
  26. hoarseness
  27. hyperventilation
  28. inability to have or keep an erection
  29. increase in body movements
  30. increased appetite
  31. increased cough
  32. irritability
  33. loss in sexual ability, desire, drive, or performance
  34. loss of heat from the body
  35. loss of memory
  36. loss of strength or energy
  37. muscle pain or weakness
  38. muscle stiffness
  39. muscle tension or tightness
  40. neck pain
  41. paranoia
  42. passing of gas
  43. problems with memory
  44. quick to react or overreact emotionally
  45. rapidly changing moods
  46. red, swollen skin
  47. restlessness
  48. runny nose
  49. scaly skin
  50. sensation of spinning
  51. sense of detachment from self or body
  52. severe sleepiness
  53. stomach pain, fullness, or discomfort
  54. swelling or inflammation of the mouth
  55. tender, swollen glands in the neck
  56. unusual weak feeling
  57. 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.