of the compounds tested unlabeled phencyclidine ( pcp ) was the most potent followed by ( - ) -cyclazocine greater than dextrorphan greater than ( + ) ketamine greater than ( + ) cyclazocine greater than ( + ) - skf10 ,047 greater than levorphanol greater than dextromethorphan greater than ( - ) skf10 ,047 greater than ( - ) -ketamine greater than ( +/- ) pentazocine and greater than ( +/- ) ethylketocyclazocine .
C0010526
cyclazocine
C0079314
ethylketocyclazocine