| abstract |
An antitussive agent. A pharmaceutical composition for relieving, preventing and/or treating cough includes a sufficient amount of Morus australis Poir. extract as an active component. The effective Morus australis Poir. extract is prepared by extracting the root-bark of Morus australis Poir. with water, ethanol, acetone, ethyl acetate, or a combination thereof. The crude extract can be further fractioned by ultrafiltration or reverse phase column. |