There are more anti-hepatitis B virus drugs, including nucleoside analogs and immunomodulatory drugs. 1. Nucleoside drugs: such as lamivudine, inhibit deoxyribonucleic acid polymerase, has the effect of inhibiting hepatitis B virus, applicable to hepatitis B patients, may have abdominal pain, nausea, vomiting and other adverse reactions, allergic to the component is prohibited. Adefovir, with antiviral effect, is suitable for patients with chronic hepatitis B. It may have headache, abdominal distension and other adverse reactions, and is prohibited for those who are allergic to this ingredient and those with liver or kidney insufficiency. 2. Immunomodulatory drugs: such as interferon, has the effect of enhancing the body’s immunity, suitable for people with low immunity, there may be skin rashes, leukopenia and other adverse reactions, bone marrow suppression, liver and kidney insufficiency, as well as those who are pregnant are prohibited. The above drugs should be used under the guidance of a doctor or pharmacist, and should not be used on their own to avoid adverse reactions.