Objective To explore the effects of aconite-licorice combined decoction and aconite-licorice mixed liquid on the isolated frog heart and their material basis.Methods The effects of aconite-licorice combined decoction and aconite-licorice mixed liquid on the isolated normal and failing frog hearts were evaluated by isolated frog heart experiment.Their HPLC fingerprints were established and compared.Results There was a difference in the cardiotonic effect between aconite-licorice combined decoction and aconite-licorice mixed liquid.The content of index components changed significantly after the ...