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. When this medicine is used for short periods of time, side effects usually are rare. However, when it is used for a long time and/or in high doses, side effects are more likely to occur and may be serious.

Check with your doctor immediately if any of the following side effects occur:

Less common

  1. Blurred vision or any other change in vision—this side effect may also occur or get worse after you stop taking this medicine


  1. Convulsions (seizures)
  2. increased muscle weakness
  3. mood or other mental changes
  4. ringing or buzzing in ears or any loss of hearing
  5. sore throat and fever
  6. unusual bleeding or bruising
  7. unusual tiredness
  8. weakness

Symptoms of overdose

  1. Drowsiness
  2. headache
  3. increased excitability

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. Diarrhea
  2. difficulty in seeing to read
  3. headache
  4. itching (more common in black patients)
  5. loss of appetite
  6. nausea or vomiting
  7. stomach cramps or pain

Less common

  1. Bleaching of hair or increased hair loss
  2. blue-black discoloration of skin, fingernails, or inside of mouth
  3. dizziness or lightheadedness
  4. nervousness or restlessness
  5. skin rash

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.