Properties: Florfenicol is white or off-white crystalline powder, odorless and bitter in taste. This product is easily soluble in dimethylformamide, soluble in methanol, slightly soluble in glacial acetic acid, slightly soluble in water or chloroform. Uses: animal-specific antibacterial drugs for pigs caused by sensitive bacteria; bacterial diseases of chickens and fish, especially for respiratory system infections and intestinal infections. Indications: 1. Livestock: used for the prevention and treatment of swine asthma, infectious pleuropneumonia, atrophic rhinitis, swine pneumonia, streptococcosis, etc. caused by dyspnea, elevated body temperature, cough, choking, decreased feed intake, It has a strong curative effect on weight loss, etc. It is effective for yellow and white diarrhea, enteritis, blood dysentery, and edema disease of piglets caused by Escherichia coli. 2. Poultry: It is used to prevent cholera, chicken pullorum, diarrhea, intractable diarrhea, yellow-white-green stool, watery stool, diarrhea, intestinal mucosal spots or other diseases caused by Escherichia coli, Salmonella, Pasteurella, etc. Diffuse hemorrhage, omphalitis, pericardial, hepatic, bacterial, mycoplasma, etc. caused by chronic respiratory disease, infectious rhinitis, air sac opacity, cough, tracheal rattle, dyspnea, etc. 3. It has obvious effect on infectious serositis, Escherichia coli and Pseudomonas aeruginosa of ducks.