Effect of lidocaine on the ventilatory and airway responses to exercise in asthmatics.

An aerosol of 4% lidocaine was delivered during the last third of inspiration to patients with bronchial asthma while they were quietly breathing. After this procedure, both cough reflex (inhalation of 10% citric acid) and gag reflex (mechanical irritation of the larynx) were absent in all patients for 15 to 20 min. This type of anesthesia was tolerated… CONTINUE READING