Nizonide 500 mg is a brand name for Nitazoxanide, an antiparasitic and antiviral drug. It is primarily used to treat protozoal infections, including Cryptosporidiosis and Giardiasis. Nitazoxanide is effective against a broad spectrum of parasites and some viruses. Here are the most important facts about Nizonide 500 mg Active Ingredient: Nitazoxanide Nitazoxanide is the...