[Main ingredient]Ceftiofur sodium [ Character ] This product is white to gray yellow powder or loose block. [Pharmacological action] Pharmacodynamics Ceftiofur is a β-lactam antibacterial agent with a broad spectrum bactericidal effect, and it is effective against Gram-positive bacteria and Gram-negative bacteria (including β-lactamase producing bacteria). Its antibacterial mechanism is to inhibit the synthesis of bacterial cell wall and lead to bacterial death. The sensitive bacteria were mainly Pasteurella multocida, Pasteurella haemolyticus, Actinobacillus pleuropneumonia, Salmonella, Escherichia coli, Streptococcus, Staphylococcus, etc. Some Pseudomonas aeruginosa and Enterococcus were resistant to drug. This product is more active than ampicillin and more active against streptococcus than fluoroquinolones. Pharmacokinetics Ceftiofur is rapidly absorbed and widely distributed by intramuscular and subcutaneous injections but does not cross the blood-brain barrier. The con…