Duka T, Bonetti E P, Bondiolotti G P, Wüster M
Experientia. 1981;37(8):881-2. doi: 10.1007/BF01985692.
The effect of naloxone on muscle tone was investigated in mice and rats at various times after administration. The naloxone effect was also tested in diazepam-pretreated animals. Naloxone was found to display muscle relaxant activity. This effect appeared to be additive to that of diazepam.