title: Lack of effect of naloxone on pain perception in humans.
mesh_terms: D006801:Humans; D009270:Naloxone / Q000494:pharmacology*; D009419:Nerve Tissue Proteins / Q000502:physiology; D009842:Oligopeptides / Q000502:physiology; D010146:Pain / Q000503:physiopathology*; D011957:Receptors, Opioid / Q000187:drug effects*
chemical_list: D009419:Nerve Tissue Proteins; D009842:Oligopeptides; D011957:Receptors, Opioid; D009270:Naloxone