Netazox Syrup is used to treat diarrhoea caused by parasite infections of the intestines (Cryptosporidium parvum and Giardia lamblia). It also treats protozoan infections caused by single-cell parasites that thrive in moist environments, such as lakes, streams, and soil. It contains Nitazoxanide, which inhibits the production of chemical substances required for energy metabolism and the growth of protozoa, helminths (worm-like parasites), anaerobic (microbes that survive without oxygen), microaerophilic (requiring little oxygen to survive), and viruses. It is effective in treating gastrointestinal infections. In some cases, it may cause side effects such as nausea, vomiting, stomach pain, fever, hair loss, dizziness, giddiness, and headaches.