Tulathromycin A is primarily used in veterinary medicine as an antimicrobial agent to treat respiratory diseases in cattle and swine. It is effective against a range of bacterial infections, including those caused by Mannheimia haemolytica, Pasteurella multocida, and Actinobacillus pleuropneumoniae. The compound is administered via injection, providing a long-lasting effect that reduces the need for frequent dosing. Its broad-spectrum activity and extended release make it a valuable tool in managing bacterial infections in livestock, contributing to improved animal health and productivity. Additionally, it helps minimize the spread of infections within herds, supporting overall herd management and welfare.