Preparation method for extracting and separating emetini hydrochloridium and cephaeline hydrochloride from ipecace

The invention discloses a preparation method for separating emetini hydrochloridium and cephaeline hydrochloride from ipecace. The maguireothamnus speciosus ipecace has the functions of being emetic, antitussive and expectorant, and contains six alkaloids such as emetini hydrochloridium, cephaeline hydrochloride and the like at present. The preparation method provided by the invention can be used for preparing the emetini hydrochloridium and cephaeline hydrochloride with the content which is more than 98% from the ipecace by the following steps of extracting, purifying, freeze drying, etc.