It is a semi-synthetic broad-spectrum penicillin antibiotic that mainly acts on the bacterial reproduction stage by inhibiting the biosynthesis of cell wall mucopolypeptides. It is effective against many Gram-positive and Gram-negative bacteria.

It has a β-lactam structure similar to penicillin and has only weak antibacterial activity itself, but it can inactivate enzymes produced by many bacteria by blocking the active site of β-lactamase. It is especially effective against clinically important plasmid-mediated β-lactamases (these enzymes are usually associated with changes in resistance to penicillins and cephalosporins).

It is a semi-synthetic broad-spectrum penicillin antibiotic that mainly acts on the bacterial reproduction stage by inhibiting the biosynthesis of cell wall mucopolypeptides. It is effective against many Gram-positive and Gram-negative bacteria.

It has a β-lactam structure similar to penicillin and has only weak antibacterial activity itself, but it can inactivate enzymes produced by many bacteria by blocking the active site of β-lactamase, especially for clinically important plasmid-mediated β-lactamase. It can protect amoxicillin from hydrolysis and destruction by β-lactamase, so it is still effective against resistant bacteria that produce β-lactamase.

It is a semi-synthetic broad-spectrum penicillin antibiotic that mainly acts on the bacterial reproduction stage by inhibiting the biosynthesis of cell wall mucopolypeptides. It is effective against many Gram-positive and Gram-negative bacteria.

It has a β-lactam structure similar to penicillin and has only weak antibacterial activity itself, but it can inactivate enzymes produced by many bacteria by blocking the active site of β-lactamase. It is especially effective against clinically important plasmid-mediated β-lactamases (these enzymes are usually associated with changes in resistance to penicillins and cephalosporins).

It mainly acts on the reproduction stage of microorganisms by inhibiting the biosynthesis of cell wall mucopolypeptides.

It has a β-lactam structure similar to penicillin and can inactivate most of the enzymes produced by bacteria by blocking the active site of β-lactamases, especially for clinically important plasmid-mediated β-lactamases.

Broad-spectrum penicillin antibiotics, which can be hydrolyzed by β-lactamase. When used in combination with potassium clavulanate, its antibacterial spectrum is expanded, and it has good effects on enzyme-producing Staphylococcus aureus, Staphylococcus epidermidis, coagulase-negative Staphylococci and enterococci. It also has good antibacterial activity against certain β-lactamase-producing Enterobacteriaceae, Haemophilus influenzae, Moraxella catarrhalis, Bacteroides fragilis, etc.

It has only weak antibacterial activity itself, but has a strong broad-spectrum β-lactamase inhibitory effect, which can protect amoxicillin from β-lactamase hydrolysis.