in [ 3h ] choline-prelabeled rat hippocampal slices , the machr agonists oxotremorine ( ec50 = 15 microm ) and carbachol ( ec50 = 80 microm ) caused atropine-reversible inhibition of [ 3h ] ach release up to a maximum of 80 % reduction .
C0008405
choline
C0006945
carbachol