2-(cyclohexanecarbonyl)-3,6,7,11b-tetrahydro-1H-pyrazino[2,1-a]isoquinolin-4-one; (+/-)-Praziquantel; Azinox; Biltricide; Cesol; Cysticide; Distocide; Droncit; Embay 8440; Prazinon; Pyquiton; Warmnil; 4H -Pyrazino[2,1-a]isoquinolin-4-one, 2-(cyclohexylcarbonyl)-1,2,3,6,7,11b-hexahydro; 2-(Cyclohexylcarbonyl)-1,2,3,6,7,11b-hexahydro-4H -pyrazino[2,1-a]isoquinolin-4-one (USP)