Biltricide, containing the active ingredient Praziquantel, is an antiparasitic medication used to treat infections caused by parasitic worms, such as schistosomiasis. It is generally taken as a single dose or a short treatment course, depending on the condition. Side effects may include headaches, dizziness, and nausea. Biltricide should be used cautiously in individuals with liver problems and is not recommended during pregnancy unless absolutely necessary. Regular monitoring may be required during treatment.