Nitazoxanide is an antiprotozoal agent.

Nitazoxanide is used to treat diarrhea in adults and children caused by the protozoa Giardia lamblia. Nitazoxanide is also used to treat diarrhea caused by the protozoa Cryptosporidium parvum. These conditions are also sometimes referred to as travelers' diarrhea.

Nitazoxanide may also be used for purposes other than those listed in this medication guide.

Take nitazoxanide with food.

Talk to your doctor before taking other prescription or over-the-counter medications, including vitamins, minerals, and herbal products during treatment with nitazoxanide.

Talk to your doctor before taking nitazoxanide if you have

• liver disease;

• kidney disease; or

• HIV infection or problems with your immune system.

You may not be able to take nitazoxanide, or you may require a dosage adjustment or special monitoring during treatment if you have any of the conditions listed above.

The nitazoxanide oral suspension contains 1.48 grams of sucrose per 5 mL (teaspoon). Individuals with diabetes may need to monitor their intake of sucrose.

Nitazoxanide is in the FDA pregnancy category B. This means that it is not expected to be harmful to an unborn baby. Do not take nitazoxanide without first talking to your doctor if you are pregnant or could become pregnant during treatment.

It is not known whether nitazoxanide passes into breast milk. Do not take nitazoxanide without first talking to your doctor if you are breast-feeding a baby.