Figure 1From: Medications for analgesia and sedation in the intensive care unit: an overviewFunctional binding sites on the GABA receptor. Adapted from the PACT Sedation module (European Society of Intensive Care Medicine http://www.esicm.org). Reprinted from Richards G, Schoch P, Haefely W: Benzodiazepine receptors: new vistas. Seminars in Neuroscience 1991, 3:191–203. © 1991 with permission from Elsevier.Back to article page