Aminoglycoside antibiotics, with an antibacterial spectrum similar to that of kanamycin but weaker, have good antibacterial activity against Escherichia coli, Klebsiella, Proteus and other Enterobacteriaceae, and also have good effects on some Staphylococci (methicillin-sensitive strains), Neisseria gonorrhoeae, and Neisseria meningitidis, have weak effects on Mycobacterium tuberculosis and Streptococcus, and have no effect on Pseudomonas aeruginosa and anaerobic bacteria. It mainly inhibits bacterial protein synthesis by binding to the 30S subunit of the bacterial ribosome, and has lower toxicity than kanamycin.

It is a semi-synthetic penicillin antibiotic that has antibacterial effects on sensitive strains of Gram-negative bacteria, Gram-positive bacteria and anaerobic bacteria.

It is a beta-lactamase inhibitor. Its combination with piperacillin can enhance its antibacterial activity, especially against beta-lactamase-producing resistant strains.

It is a semi-synthetic penicillin antibiotic that has antibacterial effects on piperacillin-sensitive bacteria and beta-lactamase-producing piperacillin-resistant bacteria, including Gram-negative bacteria, Gram-positive bacteria and anaerobic bacteria.

It is a beta-lactamase inhibitor. When used in combination with piperacillin, it can enhance the antibacterial effect against beta-lactamase-producing bacteria.

This product is a semi-synthetic penicillin, which is acid-resistant and penicillinase-resistant. It has antibacterial activity against Gram-positive cocci and Neisseria. Its antibacterial activity against enzyme-producing strains of Staphylococcus (including Staphylococcus aureus and coagulase-negative Staphylococci) is stronger than that of oxacillin, but its antibacterial effect against penicillin-sensitive Staphylococci and various streptococci is weaker than that of penicillin, and it is ineffective against methicillin-resistant Staphylococci.

This product is a semi-synthetic penicillin antibiotic. It has antibacterial effects on Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumoniae, Proteus, Enterobacter, Citrobacter, Serratia, Acinetobacter, and Gram-positive cocci sensitive to penicillin. It has a bactericidal effect in large doses. Its antibacterial activity against Escherichia coli, Enterobacter, Klebsiella pneumoniae, Citrobacter, Serratia, and Acinetobacter is stronger than carbenicillin and ampicillin; its antibacterial activity against indole-positive Proteus and Pseudomonas aeruginosa is stronger than carbenicillin and sulbenicillin; its antibacterial activity against Gram-positive bacteria such as Staphylococcus aureus is similar to that of carbenicillin, and its antibacterial activity against Streptococcus faecalis is superior to that of carbenicillin and sulbenicillin. It has good antibacterial effect against most anaerobic bacteria such as Bacteroides fragilis.