What is VIP?
Vasoactive Intestinal Peptide (VIP) is a 28-amino acid neuropeptide with potent anti-inflammatory, immunomodulatory, and neuroprotective properties. Acting through VPAC1 and VPAC2 receptors, VIP regulates immune function, vascular tone, circadian rhythms, and neurological health. It has been extensively studied for chronic inflammatory response syndrome (CIRS), pulmonary conditions, autoimmune diseases, and most recently COVID-19 respiratory failure. The injectable form (Aviptadil/Zyesami) received