to further investigate differences in the responses of normals and patients with duodenal ulcer with respect to gastrin release and acid and pepsin secretion , we infused bombesin ( 1 microgram/kg x h ) or bethanechol ( 40 micrograms/kg x h ) during the middle hour of a 3-h infusion of pentagastrin and compared the results with a pentagastrin infusion without added drug .
C0017151
gastrin
C0030859
pentagastrin