Antiviral drugs are generally classified into several categories, such as broad-spectrum antivirals, anti-influenza virus drugs, anti-HIV drugs, anti-herpes virus drugs, and anti-hepatitis virus drugs, depending on the virus they antagonize. The antiviral drugs applied to different kinds of diseases are not exactly the same: 1. Broad-spectrum antivirals: the action of these drugs is usually broad, and can inhibit the growth and reproduction of a variety of viruses. Clinical common are ribavirin, interferon, etc.; 2, anti-influenza virus drugs: mainly for the influenza virus drugs, commonly used are oseltamivir, zanamivir, paramivir, etc.; 3, anti-HIV drugs: mainly for the HIV virus drugs, currently the main zidovudine, zalcitabine, stavudine, lamivudine, nevirapine, dehydroxylinosine, raltegravir, indinavir, saquinavir, dortilavir 4, anti-herpes virus drugs: for herpes simplex virus, varicella-zoster virus drugs, the representative drugs are acyclovir, valacyclovir, etc.. For EBV drugs such as interferon, ganciclovir, etc., for cytomegalovirus representative drugs such as ganciclovir, phosphonate, etc.; 5, anti-hepatitis virus drugs: anti-hepatitis virus drugs can be divided into anti-hepatitis B virus and anti-hepatitis C virus drugs. Anti-hepatitis B virus drugs mainly include interferon, entecavir, tenofovir, propofol tenofovir, lamivudine, tebivudine, adefovir. Anti-hepatitis C virus drugs are mainly sofosbuvir-velpatasvir, elbasvir-gelarevir, ledipavir, sofosbuvir, and gekarevir-peruntamivir.