Broad-spectrum semi-synthetic penicillin has a broad-spectrum killing effect on Gram-positive and Gram-negative bacteria. It has a strong antibacterial effect on hemolytic streptococci, pneumococci and non-penicillinase-producing staphylococci, which is similar to or slightly inferior to penicillin. It also has a good antibacterial effect on viridans streptococci, and is better than penicillin on enterococci and Listeria. It has antibacterial effects on Corynebacterium diphtheriae, Bacillus anthracis, Actinomyces, Haemophilus influenzae, Bordetella pertussis, and Neisseria.

Acid-resistant and enzyme-resistant semisynthetic penicillin, it has a broad-spectrum killing effect on Gram-positive and Gram-negative bacteria, and is effective against penicillin-resistant Staphylococcus aureus. When used in combination with ampicillin, it can enhance the effects of each other and make up for the shortcomings of each alone.

Broad-spectrum semi-synthetic penicillin has a broad-spectrum killing effect on Gram-positive and Gram-negative bacteria. It has a strong antibacterial effect on hemolytic streptococci, pneumococci and non-penicillinase-producing staphylococci, which is similar to or slightly inferior to penicillin. It also has a good antibacterial effect on viridans streptococci, and is better than penicillin on enterococci and Listeria. It has antibacterial effects on Corynebacterium diphtheriae, Bacillus anthracis, Actinomyces, Haemophilus influenzae, Bordetella pertussis, and Neisseria.

Acid-resistant and enzyme-resistant semi-synthetic penicillin has a broad-spectrum killing effect on Gram-positive and Gram-negative bacteria. It is effective against penicillin-resistant Staphylococcus aureus and can make up for the shortcomings of ampicillin sodium used alone.

Amoxicillin is a broad-spectrum penicillin antibiotic, which can be used in combination with potassium clavulanate to protect it from hydrolysis by β-lactamase. It has a good effect on enzyme-producing Staphylococcus aureus, Staphylococcus epidermidis, coagulase-negative Staphylococci and enterococci, and also has good antibacterial activity against certain β-lactamase-producing Enterobacteriaceae, Haemophilus influenzae, Moraxella catarrhalis, Bacteroides fragilis, etc.

Clavulanate potassium itself has only weak antibacterial activity, but it has a strong broad-spectrum β-lactamase inhibitory effect and can protect amoxicillin from β-lactamase hydrolysis.

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.

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.