It can antagonize histamine and acetylcholine, relieve bronchospasm and have an anti-asthmatic effect; it also has a strong inhibitory effect on the cough center; it can cause increased secretions, thin thick sputum, reduce sputum viscosity, and make it easier to cough up; it has a similar effect to aminophylline in relaxing bronchial smooth muscles; it can increase the electrical stimulation threshold of the cerebral cortex, inhibit the synaptic conduction of electrical stimulation and the spread of epileptic electricity.

This product is a prodrug of acyclovir. It is rapidly absorbed after oral administration and quickly converted into acyclovir in the body. Its antiviral effect is exerted by acyclovir. After acyclovir enters the herpes infected cells, it competes with deoxynucleoside for viral thymidine kinase or cellular kinase. The drug is phosphorylated into activated acyclosine triphosphate, which competes with deoxyguanine triphosphate for viral DNA polymerase as a substrate for viral replication, thereby inhibiting viral DNA synthesis and showing antiviral effect. The antiviral activity of this product in vivo is better than that of acyclovir, and the therapeutic index for herpes simplex virus type I and type II is 42.91% and 30.13% higher than that of acyclovir, respectively. It also has a high efficacy against varicella zoster virus and has very low toxicity to mammalian host cells.

Proteolytic enzyme. It can dissolve blood clots, inhibit thrombosis, and improve microcirculation.

Proteolytic enzyme. It can dissolve blood clots, inhibit thrombosis, and improve microcirculation.

L-lysine is one of the eight essential amino acids for the human body. It can promote human development, enhance immune function, and improve the function of central nervous tissue.