It interferes with the first step of folic acid synthesis. When used in combination with trimethoprim, it can double block the folic acid metabolism of bacteria, enhance the synergistic antibacterial effect, and reduce drug-resistant strains. It has good antibacterial effects on a variety of bacteria.

It selectively inhibits the action of dihydrofolate reductase. When used in combination with sulfamethoxazole, it can double block the bacterial folate metabolism, enhance the synergistic antibacterial effect, and reduce drug-resistant strains. It has good antibacterial effects on a variety of bacteria.

This product is a synthetic antibacterial anti-tuberculosis drug. It has strong activity against bacteria in the growth and reproduction stage, but almost no effect on bacteria in the dormant stage. It has high antibacterial activity against various types of mycobacteria. There is no cross-resistance between tuberculosis bacteria and this product and other drugs. The mechanism of action of this product has not been fully elucidated. It may be related to inhibiting the metabolism of sensitive bacteria, inhibiting the synthesis of RNA, and interfering with the protein metabolism of tuberculosis bacteria, thereby leading to bacterial death.

It has antibacterial effect on most Gram-positive and Gram-negative bacteria, and inhibits the early synthesis of bacterial cell walls, thereby blocking the synthesis of bacterial cell walls and causing their death.

It is a non-steroidal anti-inflammatory drug with analgesic, anti-inflammatory and antipyretic effects. This product exerts its pharmacological effects by inhibiting cyclooxygenase, reducing the synthesis of prostaglandins in local tissues, inhibiting the chemotaxis of leukocytes and the release of lysosomal enzymes.

It can promote hematopoiesis and increase peripheral blood leukocytes. Animal experiments have shown that it has a therapeutic effect on leukopenia in rats and dogs caused by cyclophosphamide; in addition, it has the effects of lowering blood pressure, resisting arrhythmia, resisting myocardial ischemia, and preventing and treating animal experimental silicosis.