Tilmicosin solid dispersing agent and preparation method thereof

The invention relates to a tilmicosin solid dispersing agent and a preparation method thereof. The solid dispersing agent consists of 1-3 parts of tilmicosin and 3-9 parts of a mixed carrier in parts by weight. The solid dispersing agent is prepared by such steps as melting the carrier, mixing the carrier with the tilmicosin, curing, drying, crushing and the like. According to the tilmicosin solid dispersing agent and the preparation method thereof, the reasonable compatibility of carrier combination is achieved, the solid dispersing agent is prepared by virtue of a melting process and the use of an organic solvent is avoided, so that the solubility of a finished product in water is greatly improved and the bioavailability of the finished product is effectively improved. The solid dispersing agent can be used for effectively treating infectious diseases, such as pneumonia, mycoplasma pneumoniae of swine, chronic respiratory disease in chickens and the like, caused by sensitive bacteria in such animals as catt