protoberberines are most effective , followed in decreasing order by benzophenanthridines , benzylisoquinolines , aporphines , tetrahydroprotoberberines , pavines , protopines , isoquinolines , tetrahydrobenzylisoquinolines , morphinanes , and tetrahydroisoquinolines .
C0022248
isoquinolines
C0259969
tetrahydroisoquinolines