Used for the treatment of infectious disease caused by gram-positive bacteria and mycoplasma, indicated for the treatment and prevention of respiratory tract infections in poultry like mycoplasmosis, chronic respiratory disease (CRD), Gram-Positive Bacteria: Streptococci species, Staphylococci species, Clostridia species, Actinomyces species, and some Bacillus anthracis Gram-Negative Bacteria: Escherichia coli, Salmonella species, Campylobacter species, Klebsiella species, and Pasteurella multocida