This product is a medium-acting sulfonamide. It has antibacterial effects on non-enzyme-producing Staphylococcus aureus, Streptococcus pyogenes, Streptococcus pneumoniae, Escherichia coli, Klebsiella, Salmonella, Shigella and other Enterobacteriaceae, gonococci, meningococci, Haemophilus influenzae. In addition, it also has antimicrobial activity against Chlamydia trachomatis, Nocardia asteroides, Plasmodium and Toxoplasma in vitro. The antibacterial activity of this product is the same as that of sulfamethoxazole. However, in recent years, bacterial resistance to this product has increased, especially Streptococcus, Neisseria and Enterobacteriaceae. Sulfonamides are broad-spectrum antibacterial agents. This product is similar in structure to para-aminobenzoic acid (PABA), and can compete with PABA on dihydrofolate synthase in bacteria, thereby preventing PABA from being used as a raw material to synthesize folic acid required by bacteria, and reducing the amount of metabolically active tetrahydrofolate, which is an essential substance for bacteria to synthesize purine, thymidine and deoxyribonucleic acid (DNA), thereby inhibiting the growth and reproduction of bacteria.

This product is one of the ingredients of the Chinese medicine bezoar. As an endogenous amino acid in the human body, this product is a central inhibitory transmitter that can regulate the excitability of nerve tissue and body temperature. Therefore, it has antipyretic, sedative, analgesic, anti-inflammatory, anti-rheumatic, and anticonvulsant effects. In addition, it can improve the body's nonspecific immune function.

By hindering the bacterial transpeptidation process and inhibiting bacterial protein synthesis, it has antibacterial effects on a variety of Gram-positive aerobic bacteria, Gram-negative aerobic bacteria, anaerobic bacteria, sexually transmitted disease microorganisms and other microorganisms. The mechanism of action is the same as that of erythromycin, mainly binding to the 50S subunit of the bacterial ribosome to inhibit RNA-dependent protein synthesis.

By hindering the bacterial transpeptidation process and inhibiting bacterial protein synthesis, it has antibacterial effects on a variety of Gram-positive aerobic bacteria, Gram-negative aerobic bacteria, anaerobic bacteria, sexually transmitted disease microorganisms and other microorganisms. The mechanism of action is the same as that of erythromycin, mainly binding to the 50S subunit of the bacterial ribosome to inhibit RNA-dependent protein synthesis.

Selectively relaxes the smooth muscle of the biliary tract and directly inhibits the sphincter of Oddi in the biliary tract, relaxes the biliary sphincter, reduces the resistance of the common bile duct to the confluence with the duodenum, reduces the pressure inside the gallbladder and bile duct, promotes the discharge of bile and pancreatic juice, improves appetite, eliminates abdominal distension, and has the effects of antispasmodic, analgesic and choleretic