This product belongs to the macrolide antibiotics. It has antibacterial activity against Staphylococcus (except methicillin-resistant strains), all 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, certain spirochetes, Mycoplasma pneumoniae, Rickettsia and Chlamydia. This product is an antibacterial agent, but it also has a bactericidal effect on certain bacteria at high concentrations. It 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) from binding to the "P" site, and also blocking the self-acceptor site ("A" site) of the polypeptide chain.

This product is a synthetic antibacterial drug with bactericidal effect. It is only effective against mycobacteria, mainly bacteria in the growth and reproduction period. Its mechanism of action has not yet been elucidated, and it may inhibit the synthesis of mycolic acid in sensitive bacteria and cause cell wall rupture.

It inhibits the synthesis and release of prostaglandins in the hypothalamus, restores the normal responsiveness of the sensory neurons in the temperature regulation center, and has an antipyretic effect; it has an analgesic effect by inhibiting the synthesis of prostaglandins, etc.; it inhibits the synthesis and release of prostaglandins in the local tissue of inflammation, stabilizes lysosomal enzymes, and affects the phagocytic function of phagocytes, thus playing an anti-inflammatory role

It inhibits the synthesis and release of prostaglandins in the hypothalamus, restores the normal responsiveness of the receptor neurons in the temperature regulation center, and has an antipyretic effect; it has an analgesic effect by inhibiting the synthesis of prostaglandins, etc.

It is a central nervous system stimulant that can excite the cerebral cortex, increase sensitivity to the outside world, and constrict cerebral blood vessels, thus enhancing the headache relief effects of the first two drugs.

It has sedative, hypnotic and anticonvulsant effects, can enhance the analgesic effect of aminopyrine and phenacetin, and prevent convulsions caused by fever