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. Absence of or decrease in body movement
  2. difficulty with swallowing
  3. drooling
  4. inability to sit still
  5. incremental or ratchet-like movement of the muscle
  6. loss of balance control
  7. mask-like face
  8. muscle discomfort
  9. muscle trembling, jerking, or stiffness
  10. need to keep moving
  11. restlessness
  12. rigid or stiff muscles
  13. shakiness in the legs, arms, hands, or feet
  14. shuffling walk
  15. slow movements
  16. slow reflexes
  17. slurred speech
  18. stiffness of the arms and legs
  19. tic-like (jerky) movements of the head, face, mouth, and neck
  20. trembling or shaking of the hands or feet
  21. twisting movements of the body
  22. uncontrolled movements, especially of the face, neck, and back

Less common

  1. Arm, back, or jaw pain
  2. blurred vision
  3. burning while urinating
  4. changes in patterns and rhythms of speech
  5. chest pain or discomfort
  6. chills
  7. cold sweats
  8. confusion
  9. convulsions
  10. difficult or painful urination
  11. difficulty opening the mouth
  12. difficulty with breathing
  13. dizziness
  14. dizziness, faintness, or lightheadedness when getting up from a lying or sitting position
  15. fast, pounding, or irregular heartbeat or pulse
  16. fixed position of the eye
  17. headache
  18. high fever
  19. inability to move the eyes
  20. inability to speak
  21. increased blinking or spasms of the eyelid
  22. increased sweating
  23. lockjaw
  24. loss of bladder control
  25. muscle spasm, especially of the neck and back
  26. nervousness
  27. pale skin
  28. pounding in the ears
  29. seizures
  30. severe muscle stiffness
  31. severe or sudden headache
  32. shortness of breath
  33. slow or fast heartbeat
  34. slurred speech
  35. sticking out of the tongue
  36. sweating
  37. temporary blindness
  38. tiredness
  39. trouble with breathing, speaking, or swallowing
  40. troubled breathing with exertion
  41. uncontrolled twisting movements of the neck, trunk, arms, or legs
  42. unusual bleeding or bruising
  43. unusual facial expressions
  44. unusual tiredness or weakness
  45. unusually pale skin
  46. weakness in the arm or leg on one side of the body, sudden and severe

Rare

  1. Black, tarry stools
  2. bloody urine
  3. breast pain or swelling
  4. cough
  5. dark-colored urine
  6. decreased frequency or amount of urine
  7. fever
  8. increased thirst
  9. large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
  10. loss of appetite
  11. lower back or side pain
  12. muscle cramps or spasms
  13. muscle pain or stiffness
  14. nausea
  15. sore throat
  16. sores, ulcers, or white spots on the lips or in the mouth
  17. swelling of the face, fingers, or lower legs
  18. swollen glands
  19. troubled breathing
  20. vomiting
  21. weight 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:

More common

  1. Acid or sour stomach
  2. anxiety
  3. belching
  4. drowsiness
  5. dry mouth
  6. heartburn
  7. hyperventilation
  8. indigestion
  9. irritability
  10. relaxed and calm
  11. sleepiness or unusual drowsiness
  12. sleeplessness
  13. stomach discomfort, upset, or pain
  14. trouble sleeping
  15. unable to sleep
  16. unusually deep sleep
  17. unusually long duration of sleep

Less common

  1. Abnormal dreams
  2. anxiety
  3. back pain
  4. blurred vision
  5. burning feeling in the chest or stomach
  6. decreased appetite
  7. diarrhea
  8. feeling of constant movement of self or surroundings
  9. indigestion
  10. itching
  11. sensation of spinning
  12. skin rash
  13. sweating
  14. tenderness in the stomach area
  15. watering of mouth and drooling

Rare

  1. Decreased interest in sexual intercourse
  2. inability to have or keep an erection
  3. loss in sexual ability, desire, drive, or performance
  4. unexpected or excess milk flow from the breasts

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.