Ro 25-1553 is a 31 amino acid vasoactive intestinal peptide (VIP) analog, that acts as an agonist for VIP2 receptor (VPAC2 receptor). Ro 25-1553 exhibits a bronchodilator effect in nerve-induced or Carbachol (HY-B1208)-induced tracheal smooth muscle contraction in guinea pig model[1].
References
[1] K?llstr?m BL, et al., Bronchodilating properties of the VIP receptor agonist Ro 25-1553 compared to those of formoterol on the guinea-pig isolated trachea. Eur J Pharmacol. 2001 Nov 2;430(2-3):335-40. DOI:10.1016/s0014-2999(01)01299-7
