Antitussive, Expectorant and Antiasthmatic Effects of Tankeqing Capsule

Results of experiments such as ammonia steaming test in mice and citric acid test in guinea pigs, phenol red secretion test in mice and capillary expectorant test in rats, in-vivo and in-vitro antiasthmatic tests in guinea pigs proved that Tankeqing capsule had good antitussive, expectorant and antiasthmatic effects and a significant time-effect relationship was showed. The antitussive effect and expectorant effect arrived to the peak in 1-6h after oral administration, and the antiashmatic effect in about 1h.