Active Ingredient

Furazolidone

Furazolidone is an antibiotic that belongs to the nitrofuran class. It is commonly used to treat bacterial and protozoal infections.

This medication is often used in situations where other antibiotics may not be effective, particularly for gastrointestinal infections.

Written By Douglas C. Goldberg, MD

Reviewed By Philip Schein, MD

Last Updated 28 Nov 2025

Available Furazolidone Brands

Furazolidone

Strengths 100-mg

Furazolidone Uses

Furazolidone is used to treat various infections caused by bacteria and protozoa.

Diarrhea caused by bacteria
Giardiasis
Cholera
Enteritis
Infections caused by certain protozoa

How Furazolidone Works

Furazolidone works by interfering with the enzymes that bacteria and protozoa need to multiply and survive. This action helps to stop the spread of infection.

As a nitrofuran antibiotic, it targets the cellular processes of the microorganisms, leading to their destruction.

This mechanism makes it effective against a variety of gastrointestinal pathogens.

Common side effects of Furazolidone

While not everyone experiences side effects, some may occur and are usually mild and temporary.

Nausea
Vomiting
Diarrhea
Stomach pain
Dizziness
Headache
Loss of appetite

If you experience serious or persistent symptoms, contact your doctor.

Monitor your symptoms and report any severe reactions to your healthcare provider.
Avoid consuming alcohol while taking this medication.
Be cautious of potential interactions with other medications; consult your doctor.
Do not use if you have a known allergy to nitrofuran antibiotics.
Inform your doctor if you experience symptoms like severe abdominal pain or allergic reactions.

Always consult your doctor for personalized medical advice.

Frequently Asked Questions

What is Furazolidone used for?

Furazolidone is used to treat infections caused by bacteria and protozoa, particularly in the gastrointestinal tract.

How long does it take for Furazolidone to work?

The time it takes to feel better can vary, but some people may notice improvement within a few days. Always complete the prescribed course.

Can I drink alcohol while taking Furazolidone?

It is advisable to avoid alcohol while taking Furazolidone, as it may increase the risk of side effects.

Are there any common side effects of Furazolidone?

Common side effects include nausea, vomiting, diarrhea, and stomach pain. These are generally mild and temporary.

Can Furazolidone interact with other medications?

Yes, Furazolidone can interact with other medications. Inform your doctor about any other drugs you are taking.