Hepatitis B antiviral drugs are divided into oral nucleoside antiviral drugs, and injectable class interferon antiviral drugs. The cost of entecavir is about 10 yuan per day, and the cost of tenofovir is 30 pills per bottle, 1 pill per day, 490 yuan per month. The interferon is divided into short-acting interferon and long-acting pegylated interferon. Short-acting interferon needs to be injected once every two days and costs around 50 yuan a shot. The long-acting pegylated interferon costs around$1,000 and requires only one injection a week. In addition, the other lamivudine, tebivudine, adefovir, these drugs have basically been eliminated.