Gastrointestinal sites where camostat influences ingestive behavior were examined.
CCK-A receptor antagonist attenuated camostat-induced decreases in food intake.
CCK-A receptor action in the celiac artery was necessary for camostat effects on meal size.
CCK-A receptor action in the cardiac mesenteric artery was necessary for camostat effects on internal interval.
Camostat affects different aspects of food intake by acting in different gastrointestinal sites.