No specific pharmacological effects mentioned

Unspecified

Pharmacological action not specified

This product is a semi-synthetic β-lactamase inhibitor, which has strong antibacterial activity against Neisseria gonorrhoeae, Neisseria meningitidis and Acinetobacter calcoaceticus, and has poor effects on other bacteria, but has strong irreversible competitive inhibition of β-lactamase produced by Staphylococcus aureus and most Gram-negative bacteria. When used in combination with penicillins and cephalosporins, it can reduce the MIC of Staphylococcus aureus, Haemophilus influenzae, Escherichia coli, Bacteroides fragilis, etc., which are resistant to the first two types of antibiotics due to enzyme production, to within the sensitive range. This product has a strong affinity for PBP1 of Bacillus mirabilis and PBP2 of Acinetobacter calcoaceticus.

Cephalexin is a first-generation cephalosporin with an antibacterial spectrum similar to that of cephalothin, but its antibacterial activity is poorer than that of the latter. Except for Enterococcus and methicillin-resistant Staphylococci, most strains of Streptococcus pneumoniae, hemolytic Streptococcus, and Staphylococcus aureus that produces or does not produce penicillinase are sensitive to this product. This product has a good antibacterial effect on Neisseria, but Haemophilus influenzae is less sensitive to this product. This product has a certain antibacterial effect on some Escherichia coli, Proteus mirabilis, Salmonella and Shigella. The remaining Enterobacteriaceae, Acinetobacter, Pseudomonas aeruginosa, and Bacteroides fragilis are resistant to this product. Fusobacterium and Veillonella are generally sensitive to this product. Anaerobic Gram-positive cocci are moderately sensitive to this product.

Trimethoprim is an antibacterial agent that acts by interfering with bacterial folate metabolism.