Substance P (7-11) is a C-terminal fragment of Substance P, which can cause an increase in the intracellular calcium concentration as measured by the fluorescent dye Fura-2. In addition, the C-terminal fragment of SP, SP-(7-11), increased PGE2 and collagenase production at concentrations greater than 1 mM.

(2-phenylethyl)hydrazine dihydrochloride is a chemical compound.

Exendin-3 is a biologically active peptides isolated from venoms of the Gila monster lizards, Heloderma horridurn . Exendin-3 is a pancreatic secretagogue, which is a member of the glucagon family. It is found in the venom of Heloderma horridurn, which is a Gila monster lizard.