This product is one of the new fluorinated pyrimidine drugs. As a precursor drug of fluorouracil (5-FU), it is converted into free 5-FU by pyrimidine nucleoside phosphorylase in the body after taking it, thereby exerting its anti-tumor effect. It affects DNA and RNA synthesis respectively, mainly acting in the S phase, and also affects cells in other proliferation phases.

(1) It selectively inhibits the classical guanine synthesis pathway of lymphocytes and has no toxic effects on non-lymphocytes and/or organs; (2) It directly inhibits B cell proliferation, while cyclosporine has no effect on inhibiting antibody formation; (3) It effectively reduces the activity of adhesion molecules and inhibits the proliferation of vascular smooth muscle cells, which can prevent and treat vascular rejection reactions and reduce the occurrence of chronic rejection reactions.

The antibacterial property is similar to that of erythromycin. It has a strong antibacterial effect on Gram-positive bacteria, and is effective against Staphylococcus, Streptococcus pyogenes, Streptococcus viridans, Streptococcus pneumoniae, Diphtheria bacillus, Tetanus bacillus, and anthrax bacillus. It also has antibacterial effects on Gram-negative bacteria such as gonococci and pertussis bacillus. It is also effective against Leptospira, Rickettsia, and Mycoplasma. It can be used as a substitute for erythromycin for infections of the oropharynx, respiratory tract, skin and soft tissue, and bile duct caused by the above-mentioned sensitive bacteria.

The antibacterial property is similar to that of erythromycin. It has a strong antibacterial effect on Gram-positive bacteria, and is effective against Staphylococcus, Streptococcus pyogenes, Streptococcus viridans, Streptococcus pneumoniae, Diphtheria bacillus, Tetanus bacillus, and anthrax bacillus. It also has antibacterial effects on Gram-negative bacteria such as gonococci and pertussis bacillus. It is also effective against Leptospira, Rickettsia, and Mycoplasma. It can be used as a substitute for erythromycin for infections of the oropharynx, respiratory tract, skin and soft tissue, and bile duct caused by the above-mentioned sensitive bacteria.

It has a certain colloid osmotic pressure, which can maintain blood volume in blood vessels; it is excreted slowly, but does not accumulate in the body for a long time. It is non-antigenic and can improve microcirculation.

Sodium and chloride are important electrolytes in the body, mainly existing in extracellular fluid, and play a very important role in maintaining normal blood and extracellular fluid volume and osmotic pressure.

1. Enhance the function of the reticuloendothelial system, increase the activity of phagocytes and the production of specific hemolysin antibodies; antagonize the cellular immunosuppression caused by chemotherapy drugs. 2. Protect liver damage, significantly inhibit the increase of acute liver damage-related indicators, and reduce liver cell lesions and necrosis. 3. Have anti-tumor effects, can activate the killing ability of macrophages against cancer cells, enhance the effect of anti-cancer drugs, inhibit tumor angiogenesis and breast cancer growth. 4. Activate the body's defense immune system, have nonspecific anti-infection and anti-shock effects, reduce the mortality caused by bacterial and viral infections, and prolong survival time.