41 patients ( 20 females and 21 males aged from 8 to 68 years ) were prescribed 2-cyclohexylcarbonyl-1,2,3,6,7,11b-hexahydro-4h-pyrazino [ 2,1-a ] isoquinolin-4-one ( praziquantel , embay 8440 , biltricide ) at a dose of 25 mg/kg body weight given three times on a single day at intervals of 4 h , for the treatment of opisthorchiasis .
C0032911
praziquantel
C0029106
opisthorchiasis