The effects of other drugs on the stimulation of laryngospasm in the cat: Atropine; thiopentone; suxamethonium; local analgesics

Abstract

The effects of atropine, thiopentone, suxamethonium and local analgesics on the stimulation of laryngospasm were studied in anaesthetized and decerebrate cats. Atropine and thiopentone had no significant effect on the laryngeal reflex in these preparations. Suxamethonium prevented laryngospasm by paralyzing the intrinsic laryngeal muscles. The use of local analgesic sprays in the pharynx and larynx caused a considerable reduction in the effects of stimulation of the respiratory tract by volatile anaesthetic agents. © 1971 John Sherratt and Son Ltd.