Loxiglumide is a potent, orally bioavailable, and selective CCK-A receptor antagonist which stimulates calorie intake and hunger feelings in humans.

Nastorazepide, formerly known as Z-360, is a selective, orally bioavailable, 1,5-benzodiazepine-analogue gastrin/cholecystokinin 2 (CCK-2) receptor antagonist with potential antineoplastic activity.

Caerulein (Caerulein; Cerulein; FI-6934) is a novel, potent and specific decapeptide-based cholecystokinin receptor agonist, it is produced in the skin of Hila caerulea, an Australian amphibian.

Sincalide (CCK-8) is a cholecystokinetic drug used to treat cholecystitis and to diagnose disorders of the gallbladder and pancreas.