Nitarid 500mg Tablet is an antiparasitic medication, used in the treatment of diarrhea and worm infections. It inhibits the growth of the parasite and thus treats your infection. Nitarid 500mg Tablet should be used in the dose and duration as advised by your doctor. It should be taken with food, preferably at a fixed time. Avoid skipping any doses and finish the full course of treatment even if you feel better. Do not take a double dose to make up for a missed dose. Simply take the next dose as planned. Some people may experience headaches, nausea, fever, hair loss, and vomiting as the side effects of this medicine. Please consult your doctor if these do not resolve or persist for a longer duration. You may be monitored with blood tests and liver function tests throughout your treatment.