Glucagon-like peptide 2 (GLP-2) is a recently identified intestinal epithelium-specific growth factor that has been shown to reduce the severity of inflammatory disorders of the intestine in rodent models. Currently Glucagon-Like Peptide 2 is used as a potential therapeutic agent for the human subjects with a broad variety of intestinal diseases characterized by intestinal damage and insufficiency.

Isoproterenol (Norisodrine) is a non-selective and orally active β-adrenoceptor agonist.Isoproterenol is a potent peripheral vasodilator and bronchodilator.

D-Cysteine is the D-isomer of cysteine and a powerful inhibitor of the growth of E. coli.