The invention provides a method for preparing a film agent by using
chitosan and Arabic gum as matrix, and relates to a preparation method of the film agent. With the adoption of the method for preparing the film agent by using the
chitosan and the Arabic gum as the matrix, the problem that the conventional film agent is poor in
absorption effect, or has high
drug-release incomplete residual amount, or has
irritation in long-term use can be solved. The preparation method provided by the invention comprises the steps of I, preparing a
chitosan solution; II, preparing an Arabic gum solution; and III, mixing the chitosan solution prepared by the step I with the Arabic gum solution prepared by the step II, so as to obtain a
mixed solution; heating the
mixed solution; stirring after adding drugs, a
plasticizer and an absorption
promoter, so as to obtain a mixture; and then preparing the film agent by using the mixture through a
film coating machine. The film agent is a film agent using the chitosan and the Arabic gum as the matrix. The film agent prepared by the invention has the advantages of low
drug residual amount and slight
irritation; the biological use rate is improved; the simple preparation process and the temperate conditions can be realized; and the desired raw auxiliary materials are cheap and easy to get. The method for preparing the film agent by using the chitosan and the Arabic gum as the matrix provided by the invention is applied to the field of preparing a pharmaceutical preparation.