Used primarily in veterinary medicine as an antibacterial agent to treat bacterial infections in livestock and poultry. It belongs to the sulfonamide class of drugs and works by inhibiting bacterial growth, particularly against susceptible strains causing respiratory, gastrointestinal, and urinary tract infections. Commonly administered through feed or drinking water, it helps control outbreaks in farm animals. Its use is regulated due to concerns about residues in food products and the development of antibiotic resistance.