The standard treatment for diphyllobothriasis, as well as many other tapeworm infections is a single dose of Praziquantel, 5–10 mg/kg PO once for both adults and children. An alternative treatment is Niclosamide, 2 g PO once for adults or 50 mg/kg PO once.[11] One should note that Praziquantel is not FDA approved for this indication and Niclosamide is not available for human use in the United States
