Nitazoxanide 500 mg is a prescription medicine used to treat certain intestinal infections caused by parasites. It is especially effective against giardiasis (caused by Giardia lamblia) and cryptosporidiosis (caused by Cryptosporidium parvum), which often lead to diarrhea. Doctors may also use it for some viral or bacterial infections, but its main role is fighting parasites in the stomach and intestines.

This medication works by stopping the parasites from growing and multiplying, allowing the body to get rid of the infection. Nitazoxanide usually comes in tablet or oral suspension (liquid) form. It is commonly prescribed for three days, but the exact duration may vary depending on the infection and the patient’s age.

Nitazoxanide can be used in both adults and children, though the dose is adjusted by age and weight. It is usually taken with food to improve absorption. Most people tolerate it well, but some may experience mild side effects such as stomach pain, nausea, headache, or diarrhea.

It is important to follow the doctor’s instructions carefully and complete the full course, even if symptoms improve.

In short: Nitazoxanide is a safe and effective antiparasitic medicine that helps clear up infections causing diarrhea, restoring gut health and well-being.