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 or nurse immediately if any of the following side effects occur:

Incidence not known

  1. Abdominal or stomach pain
  2. blurred vision
  3. change in consciousness
  4. change in the ability to see colors, especially blue or yellow
  5. chest pain or discomfort
  6. cold, clammy skin
  7. confusion
  8. cough
  9. difficult or troubled breathing
  10. dizziness
  11. fast, pounding, or irregular heartbeat or pulse
  12. headache
  13. irregular, fast, slow, or shallow breathing
  14. lightheadedness, dizziness, or fainting
  15. loss of appetite
  16. noisy breathing
  17. pale or blue lips, fingernails, or skin
  18. severe constipation
  19. severe vomiting
  20. slow or irregular heartbeat
  21. sweating
  22. tightness in the chest
  23. trouble with sleeping
  24. unusual tiredness
  25. very slow heartbeat or pulse
  26. vomiting

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

Symptoms of overdose

  1. Change in consciousness
  2. cold and clammy skin
  3. convulsions (seizures)
  4. drowsiness that is so severe you are not able to answer when spoken to or, if asleep, cannot be awakened
  5. pale or blue lips, fingernails, or skin
  6. pinpoint (small) pupils in the eyes
  7. sleepiness or unusual drowsiness
  8. slow heartbeat
  9. unable to speak
  10. very slow or troubled breathing
  11. weak muscle tone

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:

Incidence not known

  1. Anxiety
  2. bad, unusual, or unpleasant (after) taste
  3. burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
  4. change in taste
  5. chills
  6. constricted, pinpoint, or small pupils (black part of the eye)
  7. decrease in the frequency or amount of urination
  8. diarrhea
  9. difficulty having a bowel movement (stool)
  10. difficulty in passing urine (dribbling)
  11. double vision
  12. dry mouth
  13. false or unusual sense of well-being
  14. fast or rapid breathing
  15. feeling of warmth
  16. hives or welts
  17. irritability
  18. itching
  19. loss of appetite
  20. muscle stiffness or tightness
  21. nausea
  22. painful urination
  23. redness, pain, or swelling at the injection site
  24. redness of the face, neck, arms, and occasionally, upper chest
  25. relaxed or calm feeling
  26. seeing, hearing, or feeling things that are not there
  27. seeing double
  28. shaking
  29. sleepiness
  30. uncontrolled eye movements
  31. upper stomach pain
  32. weight loss

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