(1) Inhibit plasminogen activators, preventing plasminogen from activating into plasmin, thereby inhibiting the dissolution of fibrin and producing a hemostatic effect. (2) Promote the release of active substances from platelets, enhance platelet aggregation and adhesion, shorten coagulation time, and produce a hemostatic effect. (3) Enhance capillary resistance and reduce capillary permeability, thereby reducing bleeding.

It has a certain antibacterial effect on most Gram-positive and Gram-negative bacteria, and inhibits the early synthesis of bacterial cell walls, which blocks the synthesis of bacterial cell walls and leads to their death. The antibacterial spectrum includes Staphylococcus aureus, Escherichia coli, Shigella, Serratia, Shigella, Pseudomonas aeruginosa, Klebsiella pneumoniae and Enterobacter aerogenes.

By inhibiting the early synthesis of bacterial cell walls, bacterial cell wall synthesis is inhibited, leading to their death

Interfere with bacterial folic acid metabolism, selectively inhibit the activity of bacterial dihydrofolate reductase, prevent dihydrofolate from being reduced to tetrahydrofolate, and prevent the synthesis of bacterial nucleic acids and proteins

Broad-spectrum antiviral drug. It has the effect of inhibiting the growth of multiple viruses such as respiratory syncytial virus, influenza virus, hepatitis A virus, adenovirus, etc. in vitro, and its mechanism is not fully understood. After entering the virus-infected cells, the drug is rapidly phosphorylated, and its product acts as a competitive inhibitor of viral synthase, inhibiting inosine monophosphate dehydrogenase, influenza virus RNA polymerase and mRNA guanosine transferase, thereby causing a decrease in intracellular guanosine triphosphate, impairing viral RNA and protein synthesis, and inhibiting viral replication and transmission. It may also have an immune effect and neutralizing antibody effect on respiratory syncytial virus.

It can inhibit the synthesis and release of prostaglandins in the hypothalamus, restore the normal responsiveness of the sensory neurons in the temperature regulation center, and have an antipyretic effect; at the same time, it can also inhibit the synthesis of prostaglandins and other substances, thereby playing an analgesic role. It can also inhibit the synthesis and release of prostaglandins in local tissues of inflammation, stabilize lysosomal enzymes, and affect the phagocytic function of phagocytes, thereby playing an anti-inflammatory role.

It is a peripheral analgesic. Its mechanism of action is to inhibit the synthesis and release of prostaglandins (PGE1) in the hypothalamic temperature regulation center, thereby causing peripheral vasodilation and sweating to achieve an antipyretic effect. At the same time, it can inhibit the effects of PGE1, bradykinin and histamine, increase the pain threshold and produce analgesic effect.

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 a strong histamine H1 receptor blocking effect, can alleviate other respiratory symptoms caused by allergies, and also has a mild inhibitory effect on the central nervous system