[The effect of verapamil on external respiratory function in bronchial asthma patients during high-altitude speleotherapy].

To study the effect of speleotherapy on external respiration (ER) in asthma, ER was investigated in 2 randomized groups of 20 asthma subjects each. Speleotherapy was conducted in 24-day courses in salt caves of Chon-Tuz (2100 m above the sea level). The overall exposure lasted 160 hrs.