This product has effective broad spectrum antibiotic ability. It can effectively kill Gram-positive bacteria, Gram-negative bacteria( including strains producing β-lactamase) and partial anaerobic bacteria. Ceftiofur sodium contains stable β-lactam ring which is very resistant to drug-resistant bacteria. Ceftiofur sodium can damage Gram-positive bacteria and Gram-negative bacteria producing β-lactamase, and significantly improve the drug sensitivity of bacteria. This product can be rapidly absorbed by tissues after intramuscular or subcutaneous injection, and it can maintain high concentration in blood and tissue for a long time.