COMPOSITION FOR INJECTION CONTAINING FLORFENICOL AND TYLOSIN

摘要

Provided is a composition for injection containing florfenicol and tylosin which has improved stability by reducing viscosity and is able to inhibit solubility lowering of florfenicol and content lowering of tylosin during storage while high concentration of florfenicol is contained by using safe solvent. The composition for injection contains 15-30 wt.% of florfenicol, 2-8 wt.% of tylosin or veterinarily acceptable salts thereof, 30-70 wt.% of dimethylsulfoxide, 2-20 wt.% of propylene glycol and 5-30 wt.% of water, further contains 0.5-5 wt.% of benzyl alcohol or 0.01-0.5 wt.% of dexamethasone or veterinarily acceptable salts thereof, wherein the composition has viscosity of 1-10 cp.