Rafeeq Alam Khan, Shireen Sadruddin, Rizwanul Haq, Talat Mirza.
Antitussive effect of herbal tea on chemical induced coughing in mice.
J Basic Applied Sci Jan ;2(2):79-82.

The antitussive activity of herbal tea was evaluated in un-anaesthetized mice. A cough model described by Miyagoshi et al., 1986, using SO2 for induction of cough was used. Herbal tea inhibited the cough induction in a dose-dependent manner when administered in the dose of 0.14, 0.2 and 4gm/kg following oral administration to the mice. The antitussive activity of herbal tea was comparable to dextromethorphan against coughing induced by sulfur dioxide gas.

PakMediNet -Pakistan's largest Database of Pakistani Medical Journals - http://www.pakmedinet.com