This product is an intermediate in the synthesis of Schisandrae Chinensis A, which can reduce liver damage and alanine aminotransferase (ALT) elevation caused by carbon tetrachloride, inhibit liver microsomal lipid peroxidation caused by carbon tetrachloride, and carbon tetrachloride metabolic conversion to carbon monoxide, reduce the consumption of reduced coenzyme II and oxygen, and protect the structure and function of liver cell biomembrane; it can reduce the increase of liver ALT induced by prednisone and promote liver regeneration in mice with partial hepatectomy; it has a significant inducing effect on cytochrome P450 enzyme activity and enhances the detoxification ability of carbon tetrachloride and certain carcinogens; it has an effect on improving protein metabolism in some hepatitis patients, increasing albumin and reducing globulin; it has no negative conversion effect on HbsAg and HbeAg, and cannot shrink enlarged liver and spleen.

This product is a non-addictive antitussive drug that can inhibit the cough center, inhibit the pulmonary vagus nerve reflex caused by lung and pleural stretch receptors, and relax bronchial smooth muscles. That is, it has both central and peripheral antitussive mechanisms.

Erythromycin stearate belongs to the macrolide antibiotics, and has antibacterial activity against Staphylococcus, various groups of Streptococcus and Gram-positive bacilli. Neisseria, Haemophilus influenzae, Bordetella pertussis, etc. are also sensitive to this product. This product also has antibacterial activity against various anaerobic bacteria except Bacteroides fragilis and Fusobacterium; it also has inhibitory effects on Legionella, Campylobacter fetus, some spirochetes, Mycoplasma pneumoniae, Rickettsia and Chlamydia. This product is an antibacterial agent, but it also has a bactericidal effect on some bacteria at high concentrations. This product can penetrate the bacterial cell membrane and reversibly bind to the 50S subunit of the bacterial ribosome near the donor site (P site), blocking the transfer RNA (t-RNA) binding to the P site, and also blocking the displacement of the polypeptide chain from the acceptor site (A site) to the P site, thereby inhibiting bacterial protein synthesis. Erythromycin stearate is only effective against bacteria that actively divide.

It has only a weak antibacterial effect on bacteria, and has a certain inhibitory effect on Staphylococcus aureus, Haemophilus influenzae, Candida albicans, etc. It can increase the level of serum properdin and enhance the phagocytic ability of leukocytes.

This product is a new type of non-narcotic analgesic, with mild antipyretic and muscle relaxant effects. It is effective for moderate and severe pain. An intramuscular injection of 20 mg of this product is equivalent to the effect of 12 mg of morphine. It has a mild respiratory depressant effect. It has no depressant effect on the circulatory system. There is no tolerance and dependence.