in the past 4 years , niclofolan and praziquantel ( 2-cyclohexyl-carbonyl-1,2,3,6,7,11b-hexahydro - 4h - pyrazino [ 2,1-a ] isoquinolin-4-one , embay 8440 , biltricide ) have been used .
C0032911
praziquantel
C0702014
biltricide