Nitazoxanide 200 mg | Nizonide 200 | Dosepharmacy Nitazoxanide is an antiparasitic and antiviral medication used to treat various infections, particularly those caused by protozoa and helminths. It is commonly prescribed for conditions such as giardiasis, a diarrheal illness caused by Giardia lamblia, and cryptosporidiosis, a disease caused by Cryptosporidium parasites. https://www.dosepharmacy.com/nizonide-200mg-tablet