Praziquantel (Biltricide) is an anthelmintic effective against flatworms. As of 2005, praziquantel is the primary treatment for human schistosomiasis, for which it is usually effective in a single dose.[1] It is also used to treat paragonimiasis, echinococcosis, cysticercosis, intestinal tapeworms and the liver flukes except for fascioliasis. In veterinary medicine it is widely used against tapeworms, going by the trade name of Droncit.