Pancuronium, d-Tubocurarine, and Epinephrine-iriduced Arrhythmias during Halothane Anesthesia in Dogs

The authors studied the effects of pancuronium, 14–200 µg/kg, and d-tubocurarine, 100–400 µg/kg, on epinephrine-induced arrhythmias (premature, ventricular contractions) in dogs anesthetized with halothane, 1.4 MAC. Neither muscle relaxant significantly affected the arrhythmogenic dose of epinephrin