Entecavir Rivne usually refers to Entecavir, and Entecavir usually has a better therapeutic effect in the treatment of chronic adult hepatitis B. This is because Entecavir is an antiviral drug that inhibits the activity of the hepatitis B virus polymerase by competing with its natural substrate, deoxyguanosine triphosphate, so as to exert a therapeutic effect for the treatment of chronic hepatitis B. It should be noted that although entecavir can treat chronic adult hepatitis B, it is not suitable for all groups of people because entecavir is mainly cleared by the kidneys, so patients with impaired renal function should use this drug with caution. If the patient must use this drug, it should also be used under the treatment of a professional doctor, and during the use of close monitoring of renal function, if suddenly obvious symptoms of renal discomfort, the patient should consult a doctor in a timely manner, do not privately use medication during this period of time, so as not to cover up the condition, which is not conducive to the diagnosis, and instead of delaying the best time for treatment.