It is an oxidized derivative of adrenaline and has no adrenaline-mimetic effect, so it does not affect blood pressure and heart rate, but it can enhance the resistance of capillaries to damage, stabilize the acidic mucopolysaccharides in blood vessels and surrounding tissues, reduce the permeability of capillaries, and enhance the retraction effect of damaged capillary ends, making it difficult for blood clots to fall off the tube wall, thereby shortening the hemostasis time, but it does not affect the coagulation process.

It works by inhibiting DNA gyrase and DNA replication in bacterial prokaryotes. Due to its unique mechanism of action, it has the characteristics of a broad antibacterial spectrum and strong antibacterial activity, and has a strong antibacterial effect on both Gram-positive and Gram-negative bacteria. It is effective against infections such as Staphylococcus, Streptococcus pyogenes, Streptococcus hemolyticus, Enterococcus, Pneumococcus, Escherichia coli, Citrobacter, Klebsiella pneumoniae, Enterobacter, Serratia, Proteus, Pseudomonas aeruginosa, Haemophilus influenzae, Acinetobacter, CamPylobacter, PeptostoreptoCoCus, and Chlamydia sensitive strains. There is no cross-resistance between this product and other antibacterial drugs.

After lomefloxacin eye drops are instilled into rabbit eyes, they are stored in the conjunctival sac for a long time and at a high concentration, which is higher than the MIC50 of lomefloxacin against sensitive bacteria, and can migrate into the aqueous humor. The concentration of lomefloxacin in inflamed eye tissues is higher than that in normal eye tissues, with the highest concentration in the cornea, followed by the eyelids, aqueous humor, iris and ciliary body, bulbar conjunctiva, extraocular muscles, sclera, and retinal choroid.

This product belongs to the quinolone antibacterial drug. Its main mechanism of action is to inhibit the activity of DNA gyrase and DNA topoisomerase IV of Staphylococcus aureus, hinder DNA synthesis and cause bacterial death; it has a weak inhibitory effect on human topoisomerase II. This product has the characteristics of a broad antibacterial spectrum and strong antibacterial effect. It has good antibacterial activity against G+ bacteria such as Staphylococcus, Streptococcus, Enterococcus, and against G- bacteria such as Escherichia coli, Proteus mirabilis, Klebsiella, Enterobacter cloacae, Citrobacter rodentium, Acinetobacter calcoaceticus, Haemophilus influenzae, Moraxella catarrhalis, Pseudomonas aeruginosa, etc. This product also has good antibacterial activity against some anaerobic bacteria such as Clostridium perfringens, Fusobacterium nucleatum, Propionibacterium acnes, Porphyromonas, some Peptostreptococci, Bacteroides fragilis and Prevotella.

This product is a H2 receptor blocker of the guanyl thiazole class, which has the characteristics of high affinity for H2 receptors, and has a significant inhibitory effect on gastric acid secretion, and has an inhibitory effect on basal secretion and the increase of gastric acid and pepsin caused by various stimuli. This product does not change the gastric emptying rate, does not interfere with pancreatic function, and has no adverse effects on the cardiovascular system and kidney function. This product is different from cimetidine, but it is similar to ranitidine, that is, long-term high-dose treatment does not cause adverse reactions of androgen antagonism such as male breast development, impotence, lack of sexual desire, and female breast pain, galactorrhea, etc. It has no teratogenic, carcinogenic, drug enzyme inhibitory and androgen inhibitory effects.