The invention relates to superfine
powder of a Fibrates lipid-lowering
drug and a preparation method therefor. The Fibrates lipid-lowering
drug is a main therapeutic
drug for resisting
hyperlipidemia, and due to influence resulting from factors such as relatively poor water
solubility and the like, the
bioavailability of the Fibrates lipid-lowering drug is not high. The method for preparing the superfine
powder of the Fibrates lipid-lowering drug, provided by the invention, comprises the steps of applying ultrasonic
waves, of which the frequency is 10kHz to 500kHz, the power is 1mW to 5,000W and the
sound intensity is 0.1mW / cm<2> to 500W / cm<2>, to a Fibrates lipid-lowering drug containing homogeneous solution so as to rapidly obtain Fibrates lipid-lowering
drug crystals, and then, carrying out normal operations such as
solid collecting, washing,
drying and the like, thereby directly obtaining the superfine
powder of the Fibrates lipid-lowering drug. According to the superfine powder prepared by the method, the
bioavailability of the drug is improved, the dosage of the drug is reduced, the
solubility of the drug is improved, and the drug absorption can be enhanced, so that the application is wider.