Amino Acid Sequence Glp-Gln-Asp-Tyr(SO3H)-Thr-Gly-Trp-Met-Asp-Phe-NH2 Other Notes A cholecystokinin analog. Review2; In studies on protease zymogens3 Biochem/physiol Actions Effects on perception of pain are conflicting. It prevents gall bladder pain, renal colic, and the pain of intermittent claudication; however, in general, it is seen as an antagonist of endogenous opioids.1 |