VIP

Vasoactive Intestinal Peptide (VIP) is a naturally occurring neuropeptide and hormone that functions as both a neurotransmitter and a signaling molecule in the body. It is involved in regulating smooth muscle relaxation, vasodilation, and secretion processes in the gastrointestinal, respiratory, and cardiovascular systems.

In research settings, VIP is studied for its broad immunomodulatory and anti-inflammatory effects, as well as its role in maintaining homeostasis in airway and gut tissues. It has been investigated for its potential influence on inflammatory signaling pathways, mucosal protection, and neural communication.

Because of its wide-ranging physiological activity, VIP is of interest in experimental studies related to respiratory conditions, inflammatory diseases, and neuroimmune interactions. However, it remains primarily a research compound and is not broadly approved as a general therapeutic medication.