“…However, anaesthetic agents, particularly suxamethonium, may provoke a variety of reactions in normal and diseased muscle. Muscle pains (Wylie and Churchill Davidson, 1972), hyperkalaemia (Cooperman, 1970), rhabdomyolysis (Jensen et al, 1968) and contracture in myotonic disorders (Thiel, 1967) have been reported. Careful evaluation ofindividual cases is therefore mandatory; the pathophysiology of the episodes described in our patient remains uncharacterized.…”