Enrofloxacin is a broad spectrum antibiotic bactericidal agent used in veterinary medicine to treat animals afflicted with certain bacterial infections.dogs and cats the product is indicated in the treatment of bacterial infections of the alimentary, respiratory and urogenital tracts, skin, secondary wound infections and otitis externa where clinical experience, supported where possible by sensitivity testing of the causal organism, indicates enrofloxacin as the drug of choice. cattle diseases of the respiratory and alimentary tract of bacterial or mycoplasmal origin (e.g. pasteurellosis, mycoplasmosis, coli-bacillosis, coli-septicaemia and salmonellosis) and secondary bacterial infections subsequent to viral conditions (e.g. viral pneumonia) where clinical experience, supported where possible by sensitivity testing of the causal organism, indicates enrofloxacin as the drug of choice. pigs Diseases of the respiratory and alimentary tract of bacterial or mycoplasmal origin (e.g. pasteurellosis, actinobacillosis, mycoplasmosis, coli-bacillosis, coli-septicaemia and salmonellosis) and mulifactorial diseases such as atrophic rhinitis and enzootic pneumonia, where clinical experience, supported where possible by sensitivity testing of the causal organism, indicates enrofloxacin as the drug of choice.1. Enrofloxacin aqueous solution was met with light and easy to change color and decompose, should be kept in dark place. 2. Drug-resistant strains of the product showed an increasing trend, not used at sub-therapeutic doses for long-term. 3. Antacids can inhibit the absorption of this product, should be avoided drinking at the same time. 4. In clinical application, can appropriately adjust dosage based on disease, concentration range of drinking water in poultry, per liter of water, added 25 to 100 mg. 5. withdrawal period of chicken is 8 days. Disabled in egg producing period of laying hen. 6. chicks are very sensitive to Enrofloxacin injection, had many poisoning report, the dose should be strictly controlled.