An interaction between histaminergic and opioidergic devices within the CNS was proposed almost thirty decades ago, by an observation that morphine administration resulted in the discharge of histamine and its improved turnover from the periaqueductal gray (Nishibori, Oishi, Itoh, & Saeki, 1985), suggesting that analgesia produced by opioids could https://harryv577ftg5.mappywiki.com/user