Background: Ayahuasca, also called yagu00e9, is a psychoactive potion of various plant infusions consisting of the Banisteriopsis caapi vine, containing beta-carbolines, and the leaves of the N,N-dimethyltryptamine (DMT)-containing Psychotria viridis, which acts as a potent agonist to 5-HT2a receptors. Drinking ayahuasca has recently become very popular in shamanistic u2018healing...