What is "physalaemin"

n. (context biochemistry English) A tachykinin peptide obtained from the (taxlink Physalaemus species noshow=1) frog.

Physalaemin is a tachykinin peptide obtained from the Physalaemus frog, closely related to substance P. Its structure was first elucidated in 1964.

Like all tachykinins, physalaemin is a sialagogue (increases salivation) and a potent vasodilator with hypotensive effects.