Tilmicosin solution and preparation method thereof

The invention provides a tilmicosin solution and a preparation method thereof, and solves the technical problems that the existing tilmicosin solution is inevitably layered after being stored for a long time, and the quality guarantee storage and subsequent use of a product are influenced. The tilmicosin solution is prepared from the following raw materials in parts by weight: 1-2 parts of hydroxypropyl methylcellulose, 0.1-0.2 part of a raw material A, 8-12 parts of tilmicosin and a proper amount of purified water; wherein the viscosity of the hydroxypropyl methylcellulose ranges from 3 mPas to 2000 mPas; the raw material A is one of sodium alginate, sulfate alginate and sodium alginate polysaccharide diester; the invention further discloses a preparation method of the tilmicosin solution. The invention can be widely applied to the technical field of pharmaceutical preparations. 本发明提供了一种替米考星溶液及其制备方法，其解决了现有替米考星溶液长时间储存不可避免的分层，影响产品保质储存与后续使用的技术问题。替米考星溶液由如下重量份的原料制成：羟丙甲纤维素为1～2份，原料A为0.1～0.2份，替米考星为8～12份，纯化水适量；其中，羟丙甲