This product is a first-generation cephalosporin, which has good antibacterial effect on some strains of Gram-positive cocci such as non-penicillinase-producing and penicillinase-producing Staphylococcus aureus, coagulase-negative Staphylococci, group A hemolytic Streptococcus, Streptococcus pneumoniae and viridans Streptococcus. Anaerobic Gram-positive bacteria are mostly sensitive to this product, while Bacteroides fragilis is resistant to it. Methicillin-resistant Staphylococci and Enterococci are resistant to this product. The effect of this product on Gram-positive and Gram-negative bacteria is similar to that of cephalexin. This product has a certain effect on Neisseria gonorrhoeae, and is also active against enzyme-producing Neisseria gonorrhoeae; its activity against Haemophilus influenzae is poor. The mechanism of action is the same as other cephalosporins, which is to inhibit the synthesis of bacterial cell walls.

It relaxes the smooth muscles of the corpus cavernosum and corpus spongiosum in a dose-dependent manner, and dilates the isolated penile artery strips pre-contracted by norepinephrine or prostaglandin PGE2α; injection of prostaglandin E1 into the corpus cavernosum of pig-tailed monkeys can increase penile artery blood flow in a dose-dependent manner.