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A prescription antibiotic, Furadantin is a medication used for the treatment and prevention of urinary tract infections. It comes in the form of a liquid, which makes it ideal for children, and is typically taken four times a day. Commonly reported side effects include vomiting, nausea, and loss of appetite; however, most people do not experience problems.

What Is Furadantin?

Furadantin® (nitrofurantoin suspension) is a prescription antibiotic approved to treat and prevent urinary tract infections (UTIs). Because this medication comes in a liquid form, it is ideal for use in children.
(Click Furadantin Uses for more information, including possible off-label uses.)

Who Makes Furadantin?

Furadantin is made by Sciele Pharma, Inc.

How Does It Work?

Furadantin works in a unique way, compared to other antibiotics. In bacterial cells, the drug is changed into a highly reactive form that destroys certain bacterial proteins and molecules. As a result, the drug interferes with bacteria's ability to make essential cell components such as protein, DNA, and cell walls.

When and How Do I Take It?

Considerations to keep in mind when taking this drug include the following:
  • The medication comes as a suspension (liquid) that is usually taken by mouth four times daily, although it may be taken just once a day for long-term UTI prevention.
  • Furadantin should be taken with food, as food increases the absorption of this antibiotic.
  • It does not matter what times of day you take this medication. However, try to space the doses out evenly per day, as reasonably as possible.
  • For Furadantin to work properly, you have to take it as prescribed. It will not work adequately if you stop taking it too soon.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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