One of the major disabling symptoms of gastroparesis is nausea and vomiting which can be difficult to control with currently available treatments. It is postulated that signaling of gastrointestinal causes of nausea starts with activation of vagal afferent nerves that trigger the central emetic pathway. Most vagal afferent nerves are unmyelinated C-fibers, many of which express the vanilloid receptor TRPV1 and respond to capsaicin. Resiniferatoxin is a very potent capsaicin analogue that has a much more favorable ratio of desensitization to excitation than capsaicin leading to more effective desensitization without irritation. The present invention describes methods of alleviating acute or chronic nausea, vomiting by the administration of resiniferatoxin.

The Board of Regents of the University of Texas System

Antagonists of the transient receptor potential vanilloid 1 and uses thereof

Methods and compositions are provided for the oral delivery of temporally increasing concentrations of capsaicin, its derivatives, and analogs (collectively, "capsaicinoids"), to provide oral or pharyngeal analgesia while minimizing sensations of nausea and burning associated with the oral administration of capsaicinoids. The methods and compositions described herein soothe and relieve oral or pharynx pain. In one embodiment, one or more capsaicinoids are dispersed within a lollipop, with successively decreasing concentrations of capsaicin from the center out to the periphery, and administered to a patient in need of amelioration of oral pain. Alternatively, the capsaicinoid can be dispersed, with decreasing concentrations from the center to the periphery, in a tablet, caplet, lozenge, troche, pill, candy, or similar formulation. Capsaicinoids include dihydrocapsaicin, norhydrocapsaicin, homocapsaicin, homodihydrocapsaicin I, norhydrocapsaicin, homodihydrocapsaicin, nordihydrocapsaicin, civamide, nonivamide, NE-19550 (also called olvanil), NE-21610, NE-28345 (also called N-oleyl-homovanillamide), their analogs, and derivatives.

capsaicin/nausea

Antagonists of the transient receptor potential vanilloid 1 and uses thereof

Method and compositions for controlling oral and pharyngeal pain using capsaicinoids

Heillasta gagnagrunnur lækningajurtanna sem studdur er af vísindum