Rafael Guimarães dos Santos is a pharmacologist and clinical researcher specializing in the therapeutic applications of psychedelics and psychoactive plants. He has been one of the most prolific researchers in terms of scientific output at ICEERS, with contributions to studies on ayahuasca, ibogaine, cannabis, and polypharmacology. He is a professor at the Ribeirão Preto School of Medicine at the University of São Paulo. This page compiles the content associated with his name on the ICEERS website.