Evodiamine is a natural indole alkaloid found in the fruits of Wu Zhu Yu, a plant used in traditional Chinese medicine. Studies involving evodiamine have demonstrated beneficial effects in cancer, obesity, inflammation, and many other conditions. It can act as an aryl hydrocarbon antagonist (Ki = 28 nM), activator of the transient receptor potential vanilloid 1 channel (EC50 = 45 nM), and inhibit signaling through NF-κB.