This product belongs to the macrolide antibiotics, which is the ethyl succinate of erythromycin. It is more stable than erythromycin in gastric acid. It has antibacterial activity against Staphylococcus (except methicillin-resistant strains), various groups of streptococci and Gram-positive bacilli. Neisseria, Haemophilus influenzae, Bordetella pertussis, etc. are also sensitive to this product. This product also has antibacterial effects on 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 form a reversible bond with the 50S subunit of the bacterial ribosome near the donor site (P site), blocking the transfer RNA (t-RNA) from 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.

Inhibits the production of malondialdehyde and thromboxane B2, reduces myocardial edema and the release of lactate dehydrogenase, and promotes the production of 6-keto-prostaglandin F1a, and has anti-platelet aggregation, vasodilation and myocardial protection effects

It has the effects of relieving asthma, relieving cough, removing phlegm, sedation, antispasmodic, and anticonvulsant. Relieving asthma: It can counteract histamine and acetylcholine and relieve bronchospasm; relieving cough: It has a strong inhibitory effect on the cough center; removing phlegm: It causes increased secretion, thins thick sputum, reduces sputum viscosity, and makes it easier to cough up; sedation: It has a sedative effect close to diazepam, significantly reduces spontaneous activity without an inhibitory effect; antispasmodic: It is similar to aminophylline and has the effect of relaxing bronchial smooth muscles. Anticonvulsant: It can increase the electrical stimulation threshold of the cerebral cortex, inhibit the synaptic conduction of electrical stimulation and the spread of epileptic electricity, thereby preventing or alleviating epileptic seizures.

It has the effects of relieving asthma, relieving cough, removing phlegm, sedation, antispasmodic, and anticonvulsant. Relieving asthma: It can counteract histamine and acetylcholine and relieve bronchospasm; relieving cough: It has a strong inhibitory effect on the cough center; removing phlegm: It causes increased secretion, thins thick sputum, reduces sputum viscosity, and makes it easier to cough up; sedation: It has a sedative effect close to diazepam, significantly reduces spontaneous activity without an inhibitory effect; antispasmodic: It is similar to aminophylline and has the effect of relaxing bronchial smooth muscles. Anticonvulsant: It can increase the electrical stimulation threshold of the cerebral cortex, inhibit the synaptic conduction of electrical stimulation and the spread of epileptic electricity, thereby preventing or alleviating epileptic seizures.

The main function of CDCA is to reduce the saturation of cholesterol in bile. After taking CDCA for most patients (when CDCA accounts for 70% of bile salts in bile), lipids return to the micelle state and cholesterol is in an unsaturated state, thereby dissolving and falling off the cholesterol in the stones. Large doses of CDCA (10-15 mg/kg per day) can inhibit the synthesis of cholesterol and increase the secretion of bile in patients with cholelithiasis, but the secretion of bile salts and phospholipids remains unchanged.