An interaction amongst histaminergic and opioidergic systems within the CNS was proposed just about 30 decades back, by means of an observation that morphine administration resulted in the release of histamine and its improved turnover from the periaqueductal grey (Nishibori, Oishi, Itoh, & Saeki, 1985), suggesting that analgesia made https://johns962gav4.wikijournalist.com/user