Emtinofovir tablets are a class of nucleotide analog reverse transcriptase inhibitors, clinically used for the treatment of chronic hepatitis B. 1. Action: Emtinofovir is a nucleoside analog, and its mechanism is mainly the inhibition of viral DNA polymerase, resulting in the inability of the hepatitis B virus to replicate, so it is commonly used to treat chronic hepatitis B. Common symptoms include vomiting, bloating, decreased appetite and depression caused by hepatitis; or jaundice, fatigue, anorexia and liver pain caused by hepatitis B. 2. Side effects: low potassium, low sodium, high chloride and other renal tubular acidosis will occur. 3. Contraindications: prohibited for allergic individuals; use with caution in renal insufficiency. This product should be taken under the correct guidance of a doctor, avoid taking it blindly.