This product is a β-lactamase-stable cephalosporin bactericidal antibiotic that works by blocking the synthesis of the main cell wall polymer, peptidoglycan. Because it can quickly penetrate the bacterial cell wall and bind to the target enzyme (penicillin binding protein) with high affinity, it can kill a wide spectrum of Gram-negative and Gram-positive pathogens at low concentrations.

It kills bacteria by inhibiting bacterial cell wall synthesis and has high resistance to β-lactamase produced by bacteria. Some common Gram-positive, Gram-negative aerobic and anaerobic pathogens are highly sensitive to this product. It is resistant to Pseudomonas aeruginosa, most strains of enterococci, and Escherichia coli.

It kills bacteria by inhibiting bacterial cell wall synthesis and has high resistance to β-lactamase produced by bacteria. Some common Gram-positive, Gram-negative aerobic and anaerobic pathogens are highly sensitive to this product. It is resistant to Pseudomonas aeruginosa, most strains of enterococci, and Escherichia coli.

Cefazolin is a first-generation cephalosporin with a broad antibacterial spectrum. Except for Enterococcus and methicillin-resistant Staphylococcus, this product has good antibacterial activity against other Gram-positive cocci, and Streptococcus pneumoniae and hemolytic Streptococcus are highly sensitive to this product. Diphtheria Corynebacterium, anthrax Bacillus, Listeria and Clostridium are also very sensitive to this product. This product has good antibacterial activity against some Escherichia coli, Proteus mirabilis and Klebsiella pneumoniae, but has poor antibacterial effect on Staphylococcus aureus. Salmonella typhi, Shigella and Neisseria are sensitive to this product, while other Enterobacteriaceae, Acinetobacter and Pseudomonas aeruginosa are resistant. Enzyme-producing Neisseria gonorrhoeae is resistant to this product; Haemophilus influenzae is only moderately sensitive. Gram-positive anaerobes and some Gram-negative anaerobes are mostly sensitive to this product. Bacteroides fragilis is resistant.

Cefazolin is a first-generation cephalosporin with a broad antibacterial spectrum. Except for Enterococcus and methicillin-resistant Staphylococcus, this product has good antibacterial activity against other Gram-positive cocci, and Streptococcus pneumoniae and hemolytic Streptococcus are highly sensitive to this product. Diphtheria Corynebacterium, anthrax Bacillus, Listeria and Clostridium are also very sensitive to this product. This product has good antibacterial activity against some Escherichia coli, Proteus mirabilis and Klebsiella pneumoniae, but has poor antibacterial effect on Staphylococcus aureus. Salmonella typhi, Shigella and Neisseria are sensitive to this product, while other Enterobacteriaceae, Acinetobacter and Pseudomonas aeruginosa are resistant. Enzyme-producing Neisseria gonorrhoeae is resistant to this product; Haemophilus influenzae is only moderately sensitive. Gram-positive anaerobes and some Gram-negative anaerobes are mostly sensitive to this product. Bacteroides fragilis is resistant.