Hepatitis B antiviral drugs are relatively numerous, and the general categorization currently has two main groups, one is interferon and the other is nucleoside analogues. For example, interferon alpha, lamivudine, telbivudine, entecavir and so on. 1. Interferon: It is divided into common interferon and long-acting interferon. There are mainly interferon α-2a, interferon α1b, interferon α-2b and so on. It has the efficacy of fixed course of treatment, no viral resistance, immunomodulation and anti-virus. Disadvantages are that it needs to be injected subcutaneously, and there are many adverse reactions, etc. It can not be used when there are contraindications such as pregnancy, mental illness, alcoholism, decompensated cirrhosis, thyroid disease and so on. 2. Nucleoside analogs: mainly lamivudine, telbivudine, entecavir, adefovir, etc.. They have the advantages of simple oral intake and high safety. However, there are some shortcomings, such as irregular treatment course, easy to appear viral resistance, easy to relapse after stopping the drug. You can’t stop taking the medication after regular review during the period of taking the medication. The above medicines are for reference only, the specific dosage and usage should follow the doctor’s instructions. When hepatitis B occurs, it is recommended to consult a doctor in time and actively cooperate with the doctor to carry out targeted treatment or therapy.