This product is a long-acting tricyclic antihistamine that can relieve seasonal allergic rhinitis or non-nasal symptoms by selectively antagonizing peripheral H1 receptors.

This product is a virus inhibitor that can non-competitively block the phosphate binding site of viral DNA polymerase, prevent pyrophosphate from separating from triphosphonate deoxynucleoside and elongating the viral DNA chain. It does not rely on the activation of viral thymidine kinase in cells, and viral replication can still be restored after discontinuation. In vitro tests have shown that it can inhibit the replication of all herpes viruses, including herpes simplex (HSV-1 and HSV-2), herpes zoster, EB virus, human herpes virus-6 and cytomegalovirus. It can also non-competitively inhibit HIV reverse transcriptase and hepatitis B virus DNA polymerase.

This product is a virus inhibitor that can non-competitively block the phosphate binding site of viral DNA polymerase, prevent pyrophosphate from separating from triphosphonate deoxynucleoside and elongating the viral DNA chain. This product does not rely on the activation of viral thymidine kinase in cells, and viral replication can still be restored after discontinuation of this product. In vitro tests show that this product can inhibit the replication of all herpes viruses, including herpes simplex (HSV-1 and HSV-2), herpes zoster, EB virus, human herpes virus-6 and cytomegalovirus. This product can also non-competitively inhibit HIV reverse transcriptase and hepatitis B virus DNA polymerase.

Intraperitoneal injection of the drug into mice with cholestatic jaundice induced by 1-naphthyl isothiocyanate can reduce serum aspartate aminotransferase, alanine aminotransferase and serum conjugated bilirubin levels, and alleviate liver cell damage in the model animals.

No specific description provided