The generic name of Huirun Entecavir Tablets is Entecavir Tablets, and the drug can play a certain therapeutic effect in coping with chronic adult hepatitis B with active viral replication and active lesions shown by liver histology, as well as nucleoside priming pediatric patients aged 2 to 18 years old with compensatory liver disease of chronic hepatitis B. Entecavir tablets is a nucleoside analog for the treatment of chronic hepatitis B, the drug inhibits viral replication activity is relatively strong, after entering the organism can quickly inhibit the virus, generally after two weeks of medication, the patient’s body of the hepatitis B virus may be a significant decline, so it can be used to save patients with severe hepatitis B, and the drug’s resistance rate is relatively low. Adverse reactions: relevant foreign studies have shown that the most common adverse reactions caused by entecavir tablets, including nausea, physical fatigue, headache, dizziness. Contraindications: The drug must be contraindicated in people who are allergic to any of the ingredients contained in entecavir tablets. Precautions: Serious acute exacerbations have been reported in concerned patients after discontinuing antiviral therapy with entecavir tablets; therefore, patients should closely monitor liver function even if they discontinue treatment with the drug. Entecavir tablets are not recommended for use in anti-HIV therapy. Individuals should use entecavir tablets in strict compliance with medical advice and should not abuse the drug, or discontinue or change the dosage of the drug on their own.