This product is a competitive angiotensin converting enzyme inhibitor, which prevents angiotensin I from converting into angiotensin II, thereby reducing peripheral vascular resistance and reducing water and sodium retention by inhibiting aldosterone secretion. This product can also dilate peripheral blood vessels by interfering with the degradation of bradykinin. For patients with heart failure, this product can also reduce pulmonary capillary wedge pressure and pulmonary vascular resistance, increase cardiac output and exercise tolerance time.

Participates in bone formation and reconstruction of bone tissue after fracture, as well as muscle contraction, nerve transmission, coagulation mechanism and reduces capillary permeability, etc.

This product is a macrolide antibiotic. Its mechanism of action is similar to that of erythromycin, and its antibacterial spectrum is also similar to that of erythromycin, but its antibacterial activity against most Gram-positive bacteria is slightly worse. Some erythromycin-resistant Staphylococcus aureus are still sensitive to kitasamycin. This product also has considerable activity against diphtheria, tetani, Neisseria gonorrhoeae, pertussis, Rickettsia and Chlamydia trachomatis.

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 it. 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.

This product has the function of regulating autonomic nervous system dysfunction and endocrine balance disorders.