Animal experiment:

Male albino mice of Swiss-Webster strain (33-36 g) are used, and all substances are given by i.p. injection in a volume of 0.5 mL. CPZ, haloperidoi and mescaline are all in time form of timeir imydrochlorides and the dose solutions are prepared at concentrations of 1.0, 0.66 and 3.3 mg/mL of 0.9% saline, respectively. The doses are: CPZ, 15 mg/kg; haloperidol, 10 mg/kg; mescaline, 50 mg/kg. Mice are pretreated with either CPZ or haloperidol 30 minutes before administration of mescaline. In some instances CPZ is injected 45 minutes after mescaline. Time animals are hmoused individually in a plexiglas cage and the gross behavior and locomotor activity. At selected intervals after mescaline, groups of mice are sacrificed by decapitation. Plasma is separated and stored at -20°C. The brain, liver, kidney, lung, spleen and heart are frozen on dry ice and stored at -20°C for 18 to 20 hours before they are used for assays.

References:

[1]. Furuta Y, et al. Effects of enzyme inhibitors of catecholamine metabolism and of haloperidol on the pancreatic secretion induced by L-DOPA and by dopamine in dogs. Br J Pharmacol. 1973 Jan;47(1):77-84.
[2]. Shah NS, et al. Effects of chlorpromazine and haloperidol on the disposition of mescaline-14C in mice. J Pharmacol Exp Ther. 1973 Aug;186(2):297-304.