Coleman, P., de Lecea, L., Gotter, A., Hagan, J., Hills, R., Kilduff, T., Kukkonen, J.P., Porter, R., Renger, J., Siegel, J.M., Sutcliffe, G., Upton, N. and Winrow, C.J. 2019. Orexin receptors (version 2019.4) in the IUPHAR/BPS Guide to Pharmacology Database. IUPHAR/BPS Guide to Pharmacology CITE. 2019, 4 (Sep. 2019). DOI:https://doi.org/10.2218/gtopdb/F51/2019.4.