There is no specific fixed time for the course of treatment of entecavir dispersible tablets, the course of treatment is different for each person. It can be as short as three years or as long as a lifetime. Entecavir dispersible tablets are mainly used for the treatment of chronic hepatitis B. From the current clinical data, if there is no cirrhosis of this type of hepatitis B virus carriers, entecavir should be taken for at least three years, and some patients may reach the surface antigen negative, the virus can not be detected in this case can consider stopping the drug . However, most of the hepatitis B patients need to take entecavir for a long time, and once the drug is stopped, the virus may rebound, so these patients need to take entecavir for life. There is also a part of hepatitis B cirrhosis or combined liver cancer patients, this kind of patients even need to take antiviral drugs for life. The duration of entecavir treatment needs to be decided according to each person’s situation, and it is recommended to use it under the guidance of a specialist.