The document summarizes the history and development of the IUPHAR-DB database and the IUPHAR/BPS Guide to Pharmacology. It discusses how IUPHAR-DB was originally developed in 2000 to provide in-depth information on drug receptors and channels. In 2011, IUPHAR collaborated with the British Pharmacological Society to create a single online resource combining IUPHAR-DB and the 5th Edition of GRAC. This became the IUPHAR/BPS Guide to Pharmacology, which presents pharmacological information on drug targets and ligands in an accessible format. The Guide contains detailed data on many target families including kinases, proteases, epigenetic targets, and those implicated in Alzheimer's disease.