An interaction in between histaminergic and opioidergic programs within the CNS was instructed approximately thirty yrs back, by an observation that morphine administration resulted in the discharge of histamine and its increased turnover from the periaqueductal grey (Nishibori, Oishi, Itoh, & Saeki, 1985), suggesting that analgesia made by opioids https://everettw269zul7.bimmwiki.com/user