Used primarily in veterinary medicine to treat bacterial infections in livestock and poultry, especially respiratory and gastrointestinal infections caused by susceptible organisms. Commonly administered in feed or drinking water for the prevention and control of coccidiosis in poultry when combined with other agents. Also applied in aquaculture to manage bacterial diseases in farmed fish. Its long-acting sulfonamide properties make it effective for sustained antimicrobial activity, reducing dosing frequency. Due to concerns over residues and antimicrobial resistance, its use is regulated in many countries, with withdrawal periods required before animal products can enter the food chain.