the ed50 values ( 95 % confidence limits ) for the protective effect of meptazinol of electric eel ache against 1 and 3 microm physostigmine and 1 microm neostigmine were 2.6 ( 1.4-4.9 ) , 9.5 ( 5-18 ) and 3 ( 1.6-5.7 ) microm , respectively , while for protection of horse serum butyrylcholinesterase ( buche ) against the same inhibitors , the ed50 values were 12 ( 5.4-26.4 ) , 42 ( 27-65.1 ) and 8 ( 3.6-17.6 ) microm , respectively .
C0001044
ache
C0008429
butyrylcholinesterase