Yes, you are on the right medication. The sole purpose of Tenofovir is to reduce the production of hbvdna and you have responded very well. The issue of reducing HBsAg is more complex. Reducing hbvdna to very low level is a necessary but not sufficient condition to reduce HBsAg. Some research indicates this may happen after prolonged use of TDF or ETV, for at least 8 years.