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:

More common

  1. Body aches or pain
  2. chills
  3. cough
  4. difficulty with breathing
  5. discouragement
  6. dizziness
  7. ear congestion
  8. feeling sad or empty
  9. fever
  10. headache
  11. irritability
  12. lack of appetite
  13. loss of interest or pleasure
  14. loss of voice
  15. nasal congestion
  16. poor coordination
  17. runny nose
  18. shakiness and unsteady walk
  19. sleepiness or unusual drowsiness
  20. sneezing
  21. sore throat
  22. tiredness
  23. trouble with concentrating
  24. trouble with sleeping
  25. unsteadiness, trembling, or other problems with muscle control or coordination
  26. unusual tiredness or weakness

Less common

  1. Being forgetful
  2. bladder pain
  3. bloody or cloudy urine
  4. changes in patterns and rhythms of speech
  5. diarrhea
  6. difficult, burning, or painful urination
  7. frequent urge to urinate
  8. general feeling of discomfort or illness
  9. joint pain
  10. loss of appetite
  11. lower back or side pain
  12. mood or mental changes
  13. muscle aches and pains
  14. nausea
  15. nervousness
  16. problems in urination or increase in the amount of urine
  17. shivering
  18. slurred speech
  19. sore throat
  20. sweating
  21. trouble with speaking
  22. vomiting


  1. Burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
  2. changes in skin color
  3. chest pain or discomfort
  4. cold sweats
  5. colds
  6. confusion
  7. cough or hoarseness
  8. difficulty with sleeping
  9. dizziness, faintness, or lightheadedness when getting up from a lying or sitting position
  10. excessive dreaming
  11. excessive muscle tone
  12. excitement
  13. falling
  14. fast, irregular, pounding, or racing heartbeat or pulse
  15. feeling mad
  16. feeling of unreality
  17. flu-like symptoms
  18. headache, severe and throbbing
  19. lack of feeling or emotion
  20. lack or loss of self-control
  21. muscle stiffness
  22. muscle tension or tightness
  23. nightmares
  24. pain, inflammation, or swelling in the calves, shoulders, or hands
  25. pain or swelling in the arms or legs without any injury
  26. pain, tenderness, or swelling of the foot or leg
  27. partial or slight paralysis
  28. scaling
  29. sense of detachment from self or body
  30. shakiness in the legs, arms, hands, or feet
  31. shortness of breath
  32. skin rash
  33. sleeplessness
  34. swelling around the eyes
  35. swelling of the face, ankle, foot, or knees
  36. thoughts of killing oneself changes in behavior
  37. tightness in the chest
  38. trembling or shaking of the hands or feet
  39. troubled breathing
  40. unable to sleep
  41. uncaring
  42. vision changes
  43. wheezing

Incidence not known

  1. Anxiety
  2. black, tarry stools
  3. bleeding gums
  4. blood in the urine or stools
  5. change in consciousness
  6. chest congestion
  7. difficulty with coordination
  8. double vision
  9. drowsiness
  10. dry mouth
  11. feeling that others are watching you or controlling your behavior
  12. feeling that others can hear your thoughts
  13. feeling, seeing, or hearing things that are not there
  14. hyperventilation
  15. irregular, fast, slow, or shallow breathing
  16. irregular, twisting uncontrolled movement of the face, hands, arms, or legs
  17. loss of consciousness
  18. loss of interest or pleasure
  19. loss of memory
  20. loss of strength or energy
  21. loss of voice
  22. muscle weakness
  23. pale or blue lips, fingernails, or skin
  24. pinpoint red spots on the skin
  25. problems with memory
  26. restlessness
  27. right upper abdominal pain and fullness
  28. severe mood or mental changes
  29. sores, ulcers, or white spots on the lips or in the mouth
  30. swollen glands
  31. troubled breathing with exertion
  32. uncontrolled eye movements
  33. unusual behavior
  34. unusual bleeding or bruising
  35. unusual weak feeling
  36. vivid dreams
  37. weight loss or gain

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:

Less common

  1. Decreased interest in sexual intercourse
  2. difficulty with swallowing
  3. dryness or soreness of the throat
  4. heavy bleeding
  5. hives
  6. inability to have or keep an erection
  7. longer than usual time to ejaculation of semen
  8. loss in sexual ability, desire, drive, or performance
  9. pain or tenderness around the eyes and cheekbones
  10. puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  11. voice changes


  1. Acid or sour stomach
  2. ankle, knee, or great toe joint pain
  3. belching
  4. bleeding after defecation
  5. blistering, burning, crusting, dryness, or flaking of the skin
  6. bloated
  7. blurred or loss of vision
  8. decrease or change in vision
  9. difficulty with moving
  10. disturbed color perception
  11. double vision
  12. dryness of the eyes
  13. earache
  14. excess air or gas in stomach or intestines
  15. feeling of constant movement of self or surroundings
  16. feeling of warmth
  17. frequent bowel movements
  18. full feeling
  19. hair loss or thinning of the hair
  20. halos around lights
  21. heartburn
  22. increased watering of the mouth
  23. indigestion
  24. irregularities in menstruation
  25. itching in genital or other skin areas
  26. itching, scaling, severe redness, soreness, or swelling of the skin
  27. joint stiffness or swelling
  28. leg or muscle cramps
  29. loss of taste
  30. night blindness
  31. nosebleeds
  32. overbright appearance of lights
  33. pain in the breasts or pelvic area
  34. pain in the leg, nape, or back
  35. passing gas
  36. red, sore eyes
  37. redness of the face, neck, arms, and occasionally, upper chest
  38. redness or swelling in the ear
  39. sensation of spinning
  40. skin rash cracks in the skin at the corners of the mouth
  41. smaller amount of semen ejaculated than usual
  42. sore on the edge of the eyelid
  43. soreness or redness around the fingernails and toenails
  44. stomach discomfort, upset, or pain
  45. thickening of the tongue
  46. thirst
  47. tooth disorder
  48. toothache
  49. tunnel vision
  50. twitching of the eyes
  51. uncomfortable swelling around the anus
  52. worsening of acne

Incidence not known

  1. Burning feeling in the chest or stomach
  2. difficulty having a bowel movement (stool)
  3. increased appetite
  4. increased hair growth, especially on the face
  5. increased in sexual ability, desire, drive, or performance
  6. increased interest in sexual intercourse
  7. sore gums
  8. tenderness in the stomach area

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.