An interaction involving histaminergic and opioidergic methods within the CNS was recommended almost thirty decades back, by way of an observation that morphine administration resulted in the discharge of histamine and its enhanced turnover during the periaqueductal grey (Nishibori, Oishi, Itoh, & Saeki, 1985), suggesting that analgesia produced by https://norwichv069zyw5.wikiexpression.com/user