This product is a macrolide antibiotic for animals. Its mechanism of action mainly exerts its sterilization effect by hindering the synthesis of bacterial proteins. This product is easily absorbed in the body, excreted rapidly, and has no residue in the tissue. spp. positive bacteria, mycoplasma have special effects. In particular, it has very high activity against Actinobacillus pleuropneumoniae, and is the drug of choice for the treatment of chronic respiratory diseases of livestock and poultry caused by Mycoplasma.