Fig. 5. Comparison of spontaneous recovery (left ) and edrophonium-accelerated recovery (right ) of GW280430A in the monkey. Continuous recording of the twitch (TW) of the extensor digitorum of the foot, elicited at 0.15 Hz. At arrows , GW280430A (0.05 mg/kg) was given intravenously. At E , edrophonium (0.5 mg/kg) was given intravenous together with atropine (0.1 mg/kg). Time scale (minutes) is at the top , and calibrations are at the left . At T , train-of-four stimulation was interposed.