Prof. Francisco Silveira Guimarães graduated in Medicine from the Federal University of Rio Grande do Sul (1981), obtained a doctoral degree (1987) and full professorship (2007) in Pharmacology in the Faculty of Medicine of Ribeirao Preto, University of Sao Paulo. He performed his postdoctoral studies at the University of Manchester, UK (1989–1990) under the supervision of Dr. JFW Deakin. He is currently a Full Professor in the Department of Pharmacology, Faculty of Medicine of Ribeirao Preto, University of Sao Paulo. Dr. Guimarães has experience in the area of pharmacology with emphasis on neuropsychopharmacology. He has published more than 300 papers in journals of international impact, 22 book chapters and three books (co-authored). His research interests mainly include nitric oxide, anxiety, depression, glutamate, serotonin, cannabinoids and stress.