Cefapirin is a first-generation cephalosporin antibiotic primarily used in veterinary medicine for the treatment of bacterial infections, particularly mastitis in dairy cattle. It is effective against gram-positive bacteria and some gram-negative bacteria, helping to reduce inflammation and bacterial load in the udder. This ensures the health of the cattle and maintains the quality of milk production. Additionally, it may be used for other infections in animals, such as skin or respiratory infections, contributing to overall livestock health management. Use should be under veterinary supervision to prevent antibiotic resistance or adverse effects.