It has antibacterial effects on most Gram-positive and Gram-negative bacteria, and inhibits the early synthesis of bacterial cell walls, which blocks bacterial cell wall synthesis and leads to their death. The antibacterial spectrum includes Staphylococcus aureus, Escherichia coli, Shigella, Serratia, Shigella, Pseudomonas aeruginosa, Klebsiella pneumoniae and Enterobacter aerogenes.

It can relax the sphincter of Oddi, has strong antispasmodic and analgesic effects, and can also gently and continuously promote bile secretion, strengthen gallbladder contraction and antibacterial effects, has obvious choleretic effects, is conducive to the discharge of stones, and has a certain stone discharge effect on common bile duct stones. Some patients with elevated alanine aminotransferase will return to normal after taking the medicine as the inflammation is eliminated. This product has low toxicity, and the acute toxicity LD50 of mice is 5375mg/kg.

This product is a non-narcotic antitussive drug that mainly blocks the afferent sensory nerve impulses of the lung and pleural receptors, and also directly inhibits the antitussive center. It also has a papaverine-like smooth muscle spasmolytic effect.

This product is a non-narcotic antitussive drug that mainly blocks the afferent sensory nerve impulses of the lung and pleural receptors, and also directly inhibits the antitussive center. It also has a papaverine-like smooth muscle spasmolytic effect.

It has a broad-spectrum antimicrobial effect in vitro, including aerobic Gram-negative and Gram-positive bacteria, anaerobes, Rickettsia, spirochetes and Chlamydia. It has a bactericidal effect on Haemophilus influenzae, Streptococcus pneumoniae and Neisseria meningitidis; it only has an antibacterial effect on anaerobic bacteria such as Staphylococcus aureus, Streptococcus pyogenes, Streptococcus viridans, Group B hemolytic Streptococcus, Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Salmonella typhi, Salmonella paratyphi, Shigella, Bacteroides fragilis, etc. Pseudomonas aeruginosa, Acinetobacter, Enterobacter, Serratia marcescens, indole-positive Proteus, methicillin-resistant Staphylococcus and Enterococcus are usually resistant to chloramphenicol. Chloramphenicol is fat-soluble and enters bacterial cells by diffusion, reversibly binds to the 50S subunit of bacterial ribosomes, inhibits the formation of peptide chains, and thus prevents protein synthesis.