Side Effects

Drug information provided by: Merative, 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. Fast, irregular, pounding, or racing heartbeat or pulse

Incidence not known

  1. Black, tarry stools
  2. bloody or cloudy urine
  3. changes in behavior
  4. chest pain or discomfort
  5. chills
  6. confusion
  7. cough
  8. dark urine
  9. difficulty in breathing
  10. discouragement
  11. drowsiness
  12. false or unusual sense of well-being
  13. fast heartbeat
  14. feeling sad or empty
  15. fever
  16. general tiredness and weakness
  17. headache
  18. irritability
  19. lack of appetite
  20. light-colored stools
  21. loss of interest or pleasure
  22. muscle pain
  23. nausea and vomiting
  24. painful or difficult urination
  25. rash sore throat
  26. sores, ulcers, or white spots on the lips or in the mouth
  27. swelling of the face, feet, or lower legs
  28. swollen glands
  29. swollen, painful, or tender lymph glands in the neck, armpit, or groin
  30. thoughts of killing oneself
  31. tiredness
  32. trouble concentrating
  33. trouble sleeping
  34. unusual tiredness or weakness
  35. unusual weight gain
  36. upper right abdominal or stomach pain
  37. yellow eyes and skin

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. Blurred vision
  2. change in walking and balance
  3. changes in patterns and rhythms of speech
  4. clumsiness or unsteadiness
  5. constipation
  6. dizziness or lightheadedness
  7. double vision
  8. feeling of constant movement of self or surroundings
  9. seeing double
  10. sensation of spinning
  11. shakiness and unsteady walk
  12. sleepiness or unusual drowsiness
  13. slurred speech
  14. trouble in speaking
  15. uncontrolled eye movements
  16. unsteadiness, trembling, or other problems with muscle control or coordination

Less common

  1. Abdominal or stomach pain
  2. acid or sour stomach
  3. back pain
  4. belching
  5. change in taste
  6. decreased appetite
  7. diarrhea
  8. dry mouth
  9. heartburn
  10. impaired memory
  11. indigestion
  12. itching skin
  13. lack or loss of strength
  14. loss of taste
  15. muscle aches
  16. problems with speech or speaking
  17. sore throat
  18. stomach discomfort or upset
  19. stuffy or runny nose

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.

Portions of this document last updated: Sept. 01, 2023