This product can directly penetrate the cell membrane into the body cells, activate pyruvate oxidase, so that cells in a low-energy and hypoxic state can continue to metabolize smoothly, and participate in the energy metabolism and protein synthesis of the human body.

It binds to the 50S subunit of bacterial ribosomes, preventing the extension of peptide chains, thereby inhibiting protein synthesis in bacterial cells. It has high antibacterial activity against Gram-positive bacteria such as Staphylococcus (including penicillin-resistant strains), Streptococcus, Corynebacterium diphtheriae, Bacillus anthracis, etc., and also has good antibacterial activity against Gram-negative anaerobic bacteria. It has no cross-resistance with penicillin, chloramphenicol, cephalosporins and tetracyclines, has partial cross-resistance with macrolides, and has complete cross-resistance with lincomycin. It is an antibacterial drug and has a bactericidal effect on certain bacteria at high concentrations.

This product has a broad-spectrum antimicrobial effect in vitro, including aerobic Gram-negative and Gram-positive bacteria, anaerobes, Rickettsia, spirochetes and Chlamydia. It has bactericidal effects on the following bacteria: influenza bacillus, Streptococcus pneumoniae and Neisseria meningitidis. It only has antibacterial effects on the following bacteria: Staphylococcus aureus, Streptococcus pyogenes, Streptococcus viridans, group B hemolytic Streptococcus, Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Salmonella typhi, Salmonella paratyphi, Shigella, Bacteroides fragilis and other anaerobic bacteria. The following bacteria are usually resistant to chloramphenicol: Pseudomonas aeruginosa, Acinetobacter, Enterobacter, Serratia marcescens, indole-positive Proteus, methicillin-resistant Staphylococcus and Enterococcus. This product is an antibacterial agent. Chloramphenicol is fat-soluble and enters bacterial cells by diffusion, and reversibly binds to the 50S subunit of the bacterial ribosome, which blocks the growth of the peptide chain (possibly due to the inhibition of the action of transpeptidase), thereby inhibiting the formation of peptide chains and preventing protein synthesis.

Potassium is the main cation in cells, with a concentration of 150-160 mmol/L, while the main cation outside cells is sodium ions, and the serum potassium concentration is only 3.5-5.0 mmol/L. The body mainly relies on Na+-K+ ATPase on the cell membrane to maintain the difference in K+ and Na+ concentrations inside and outside cells. The acid-base balance in the body has an impact on potassium metabolism. For example, when acidosis occurs, H+ enters the cell. In order to maintain the potential difference inside and outside the cell, K+ is released outside the cell, causing or aggravating hyperkalemia. Metabolic disorders can also affect acid-base balance. The normal potassium ion concentration and concentration difference inside and outside cells are closely related to certain functions of cells, such as carbohydrate metabolism, glycogen storage and protein metabolism, excitability and conductivity of nerves and muscles including myocardium, etc.