Cannabinoid receptor antagonists AM251 and AM630 activate TRPA1 in sensory neurons.

Patil M, Patwardhan A, Salas MM, Hargreaves KM, Akopian AN. "Cannabinoid receptor antagonists AM251 and AM630 activate TRPA1 in sensory neurons." Neuropharmacology. 2011;61(4):778-88.