The antibacterial spectrum is broader than that of ampicillin and carbenicillin. It has high activity against both Gram-positive bacteria (including anaerobic cocci and bacilli) and Gram-negative bacteria. Comparative studies have shown that the antibacterial effect of chloramphenicol is 7 to 10 times stronger than that of carbenicillin against mouse infection caused by Pseudomonas aeruginosa; 2 to 15 times stronger against Escherichia coli; 8 times stronger against Klebsiella pneumoniae, and 2 times stronger against hemolytic Streptococcus.

When used in combination with sulbactam sodium, it can reduce the MIC of Staphylococcus aureus, Haemophilus influenzae, Escherichia coli, Bacteroides fragilis, etc., which are resistant to penicillins and cephalosporins due to enzyme production, to within the sensitive range. It has a strong affinity for PBP1 of Bacillus paradoxalis.

This product is a semi-synthetic beta-lactamase inhibitor. It has strong antibacterial activity against Neisseria gonorrhoeae, Neisseria meningitidis and Acinetobacter calcoaceticus. It has poor effects on other bacteria, but has strong and irreversible competitive inhibition of beta-lactamase produced by Staphylococcus aureus and most Gram-negative bacteria. The concentration of 2mg/L has a strong inhibitory effect on Richmond classification type II, III, IV and V beta-lactamase, but has a poor effect on type I beta-lactamase. It has a strong affinity for PBP2 of Acinetobacter calcoaceticus.

This product is a semi-synthetic penicillin, which has good antibacterial effect on Gram-positive bacteria, Gram-negative bacteria and Pseudomonas aeruginosa. It can produce synergistic effect when used in combination with amikacin, gentamicin and netilmicin.

This product is a semi-synthetic penicillin, which has good antibacterial effect on Gram-positive bacteria, Gram-negative bacteria and Pseudomonas aeruginosa. It can produce synergistic effect when used in combination with amikacin, gentamicin and netilmicin.

It is a penicillin antibiotic. When combined with sulbactam sodium, it not only protects itself from enzymatic hydrolysis, but also expands the antibacterial spectrum. It has good antibacterial activity against enzyme-producing strains of Staphylococcus aureus, Acinetobacter spp. and Bacteroides fragilis.

It is a semi-synthetic β-lactamase inhibitor, which has strong antibacterial activity against Neisseria gonorrhoeae, Neisseria meningitidis and Acinetobacter calcoaceticus, and has strong irreversible competitive inhibition against β-lactamase produced by Staphylococcus aureus and most Gram-negative bacteria. It can be combined with ampicillin to expand the antibacterial spectrum.