We investigated the effect of clonidine on intravenous (iv) lidocaine-induced haemodynamic changes and convulsions in awake rats. Wistar rats (200-250 g) were divided into three groups of eight and were pretreated with iv clonidine or normal saline 15 rain before lidocaine infusion. Group 1 received normal saline; Group 2, and Group 3, (Group 1:10.5 + 0.3, Group 2:10.8 5: 0.3, respectively (groupe I: 41,8 5: 2,2; groupe 2:43,8 • 2,3; groupe 3:42,3 + 2 rag" kg -t) (groupe 1:10,5 -t-0,3; groupe 2:10,8 4-0,3; groupe 3:10,6 + 0,3 ttg" ml-J)
ni les concentrations plasmatiques de lidoca?ne ddclenchant les convulsions