when succinylcholine is used as the substrate and the product choline assayed by choline oxidase-peroxidase-quinone dye colorimetry , the rate of the choline production as optical density change was reduced to 50 % by 19.5 x 10 ( -6 ) m metoclopramide at 20 degrees c .
C0038627
succinylcholine
C0008405
choline