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. 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.

In acute toxicity experiments, the LD50 in mice and rats was greater than 4000 mg/Kg. In subacute toxicity experiments, Wistar male and female rats were given 40 mg, 200 mg and 1000 mg/Kg per day for 5 weeks, and male and female rabbits were given 6 mg, 60 mg and 600 mg/Kg per day for 23 consecutive days. There were no special changes in the blood, urine and morphological observations of the test animals. In chronic toxicity experiments, Wistar male and female rats were given 6 mg, 60 mg and 600 mg/Kg per day for 26 consecutive weeks. There were no special changes in the general state, blood and urine examinations, and morphological observations of the test animals.

An important component of coenzymes required for sugar metabolism

Important coenzyme component required for tissue respiration

Participates in the formation of antibodies, collagen and tissue repair in the body, as well as the metabolism of sugar, fat and protein

Participate in the metabolism of calcium and phosphorus and promote new bone formation

Calcium ions are necessary for maintaining normal function of nerves, muscles and bones, and also play an important role in the body's coagulation mechanism and reducing capillary permeability.