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:


  1. Agitation
  2. false beliefs that cannot be changed by facts
  3. seeing, hearing, or feeling things that are not there

Incidence not known

  1. Blurred vision
  2. chest discomfort or pain
  3. dark-colored urine
  4. difficulty breathing
  5. dizziness
  6. faintness
  7. false or unusual sense of wellbeing
  8. fast, pounding, or irregular heartbeat or pulse
  9. fever
  10. headache
  11. muscle cramps, spasms, pain, or stiffness
  12. pounding in the ears
  13. restlessness
  14. shakiness in the legs, arms, hands, or feet
  15. swelling of the feet or lower legs
  16. trembling or shaking of the hands or feet
  17. trouble sleeping
  18. twitching, twisting, or uncontrolled repetitive movements of the tongue, lips, face, arms, or legs
  19. uncontrolled vocal outbursts and tics
  20. unusual tiredness or weakness

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

Symptoms of overdose

  1. Aggressive
  2. angry
  3. confusion
  4. dark urine
  5. dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
  6. fainting
  7. fast breathing
  8. fast, slow, or irregular heartbeat
  9. muscle cramps, spasms, pain, or stiffness
  10. nausea
  11. restlessness
  12. seeing, hearing, or feeling things that are not there
  13. seizures
  14. stomach cramps
  15. sweating
  16. tremor
  17. unusual tiredness or weakness
  18. vomiting

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. Bad, unusual, or unpleasant (after) taste
  2. change in taste
  3. constipation
  4. decreased interest in sexual intercourse
  5. dry mouth
  6. hives or welts, itching, or skin rash
  7. inability to have or keep an erection
  8. indigestion
  9. loss in sexual ability, desire, drive, or performance
  10. passing of gas
  11. redness of the skin
  12. 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.

From Mayo Clinic to your inbox

Sign up for free and stay up to date on research advancements, health tips, current health topics, and expertise on managing health. Click here for an email preview.

To provide you with the most relevant and helpful information, and understand which information is beneficial, we may combine your email and website usage information with other information we have about you. If you are a Mayo Clinic patient, this could include protected health information. If we combine this information with your protected health information, we will treat all of that information as protected health information and will only use or disclose that information as set forth in our notice of privacy practices. You may opt-out of email communications at any time by clicking on the unsubscribe link in the e-mail.