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Furoxone Side Effects

Generic Name: furazolidone

Note: This page contains information about the side effects of furazolidone. Some of the dosage forms included on this document may not apply to the brand name Furoxone.

Applies to furazolidone: oral suspension, oral tablet

In addition to its needed effects, some unwanted effects may be caused by furazolidone (the active ingredient contained in Furoxone). In the event that any of these side effects do occur, they may require medical attention.

Major Side Effects

You should check with your doctor immediately if any of these side effects occur when taking furazolidone:

  • Fever
  • itching
  • joint pain
  • skin rash or redness
  • sore throat

Minor Side Effects

Some of the side effects that can occur with furazolidone may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:

Less common:
  • Abdominal or stomach pain
  • diarrhea
  • headache
  • nausea or vomiting

This medicine commonly causes dark yellow to brown discoloration of urine. This side effect does not usually need medical attention.

Not all side effects for Furoxone may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

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