%0 Journal Article %T Effect of fentanyl on midbrain units and its antagonism by naloxone in rabbits %A Wang Chun-an %A Yang Yan-hua %A Chen Yi-zhang %J Acta Pharmacologica Sinica %D 2016 %B 2016 %9 %! Effect of fentanyl on midbrain units and its antagonism by naloxone in rabbits %K %X In the 92 units, 24 units (26%) showed excitatory effects; 33 (36%) inhibitory; 13 (14%) inhibitory-excitatory and 22 (24%) no effect. Naloxone showed a reversal effect on both fentanyl-excitation and fentanyl-inhibition, but the time course of naloxone—reversal for excitatory effect was much shorter than that for inhibitory effect. %U http://www.chinaphar.com/article/view/4570 %V 3 %N 3 %P 147-150 %@ 1745-7254