Sulfaquinoxaline sodium salt is primarily used in veterinary medicine as an antimicrobial agent. It is effective against a range of bacterial and protozoal infections, particularly in poultry and livestock. The compound is commonly administered in drinking water or feed to control and prevent diseases such as coccidiosis, which affects the intestinal tract of animals. Its use helps in improving animal health and productivity by reducing the incidence of infections that can lead to significant economic losses in farming operations. Additionally, it is sometimes employed in combination with other drugs to enhance its efficacy and broaden its spectrum of activity. Proper dosage and adherence to withdrawal periods are essential to ensure food safety and prevent the development of drug-resistant strains of pathogens.