Preparation method of TAK-438 nano emulsion

The invention provides a preparation method of TAK-438 nano emulsion, and belongs to the technical field of TAK-438 drug carrier. In the prior art, TAK-438 can only be made into tablets in industrial production, the tablet is difficult to swallow for the patients, in the provided preparation method, TAK-438 is made into emulsion, and the problem mentioned above is solved therefore. The preparation method comprises the steps of oil phase preparation, water phase preparation, emulsion, and homogenization. The TAK-438 nano emulsion prepared by the provided preparation method has a good stability, the preparation and storage of pharmaceutical TAK-438 nano emulsion become more convenient, the injection becomes easier, the pain caused by drug application is relieved for the patients, and the preparation method has the advantages of simple technology, mild conditions, low cost, and suitability for industrial production.