Acts on dihydrofolate synthase, interfering with the first step of folic acid synthesis, and has a synergistic antibacterial effect when used in combination with trimethoprim

It acts on the second step of folic acid anabolism, selectively inhibits the action of dihydrofolate reductase, and has a synergistic antibacterial effect when used in combination with sulfadiazine

This product belongs to the macrolide antibiotics, which is the dodecyl sulfate of erythromycin propionate. It has antibacterial activity against Staphylococcus, various groups of streptococci and Gram-positive bacilli. Neisseria, Haemophilus influenzae, Bordetella pertussis, etc. may also be 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 pass through 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. This product is only effective against bacteria with active division.

This product belongs to the macrolide antibiotics, which is the dodecyl sulfate of erythromycin propionate. It has antibacterial activity against Staphylococcus, various groups of streptococci and Gram-positive bacilli. Neisseria, Haemophilus influenzae, Bordetella pertussis, etc. may also be 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 pass through 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. This product is only effective against bacteria with active division.

Adrenal cortex hormone drugs. This product has anti-inflammatory and anti-allergic effects, can inhibit the proliferation of connective tissue, reduce the permeability of capillary walls and cell membranes, reduce inflammatory exudate, and inhibit the formation and release of histamine and other toxic substances.

Nicotinic acid is converted into nicotinamide in the body, and then combined with riboadenin to form nicotinamide adenine dinucleotide (coenzyme I) and nicotinamide adenine dinucleotide phosphate (coenzyme II), which are necessary for lipid amino acid, protein, purine metabolism, tissue respiration oxidation and glycogenolysis. Nicotinic acid can reduce the utilization of coenzyme A; by inhibiting the synthesis of very low density lipoprotein (VLDL), it affects the transport of cholesterol in the blood. Large doses can reduce serum cholesterol and triglyceride concentrations. Nicotinic acid has a peripheral vasodilation effect.