Hepatitis B is reactive

[Deep121]

Dear Sir
My father has been detected HbsAg positive ie reactive.He has been started with Tenvir 300 two days ago.
All other supporting HbsAg test are negative.
Can I know what is duration of Tenvir approximately he need to continue to become normal and his Tenvir medication/or any other medication will stop.

[StephenCastlecrag]

You have not provided much information. To test whether your father has responded to Tenofovir treatment, he should test his viral load (hbvdna) and ALT in about 6 months' time. Tenofovir is very effective, his viral load and ALT should come down  significantly from the baseline values. Generally, Tenofovir has to taken for at least several years or longer. In a few lucky patients, Tenofovir may be stopped after meeting several criteria and under the advice and straight supervision by a HBV specialists. Even fewer patients may achieve the endpoint of treatment by losing their HBV surface antigen. These are exceptions.