[Studies on antitussive, antiasthmatic, expectorant and anti-inflammatory effects of Jin'an kechuan granules].

OBJECTIVE

To study the pharmacologic effect of Jin'an Kechuan granules.

METHODS

Routine antitussive, antiasthmatic and expectorant methods were used.

RESULTS

Jin'an Kechuan granules in the doses of 16, 8, 4 g.kg-1 ig could significantly decrease the frequency of cough caused by ammonia water in mice, and increase the secretion of phenol red from mouse tracheas in a dose-dependent manner. The granules also help increase the threshold voltage to induce cats to cough, prolong the latent period of asthma induced by histamine and acetylcholine mixture, and antagonize the contraction of isolated trachea strips induced by histamine and acetylcholine in guinea pigs. Jin'an Kechuan granules had inhibitory effects on common bacteria in the respiratory tract as well as on the swelling of acute inflammation in mice and rats.

CONCLUSIONS

Jin'an Kechuan granules have antitussive, antiasthmatic, expectorant and anti-inflammatory, antibacterial effects.