• A Hayes, D Breslin, J Reid, and R K Mirakhur.
• Department of Anaesthetics, The Queen's University of Belfast, Whitla Medical Building, 97 Lisburn Road, Belfast BT9 7BL, UK.
• Anaesthesia. 2000 Sep 1;55(9):859-63.

AbstractThe neuromuscular blocking effects of a single dose of rapacuronium 1.5 mg x kg(-1) with or without reversal with neostigmine have been examined in the present study and compared with a dose of succinylcholine 1.0 mg x kg(-1). Neuromuscular block was measured mechanomyographically using train-of-four stimulation. Complete block occurred within 1 min with both agents. Twenty-five per cent recovery of the first response of the train-of-four occurred in a median [range] time of 7.6 [5.7-11.3] min in the succinylcholine group and in 14.2 [8.8-23.6] and 15.1 [9.6-23.4] min in the rapacuronium groups with and without neostigmine reversal, respectively. Spontaneous recovery to a train-of-four ratio of 0.8 took 33.4 [20.0-79.0] min with rapacuronium but this was reduced to about 21.2 [13.9-33.7] min when neostigmine was administered at 25% recovery of first twitch of the train-of-four.

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