Sulfachlorpyridazine Sodium can block the synthesis of microbial tetrahydrofolate, has broad-spectrum antibacterial effect, and can resist Gram-positive and Gram-negative bacteria. This product is used as an anti-inflammatory and antibacterial drug for poultry and livestock. It is mainly used for infectious diseases such as Chicken Escherichia coli, Staphylococcus infection, white crown disease, chicken Hodgkin's disease and typhoid.