Category: GlyR

Lever pressing in the active lever for delivery of just one 1 and 10 em /em g/ml of fentanyl increased throughout days 8-19 with the utmost mean reaching 50 active lever presses about day 19 (Fig. fentanyl self-administration (however, not food-maintained responding) in comparison to saline-injected settings. When agmatine was given after fentanyl self-administration have […]