Welcome to healthcare Magic!
You are having active infection with hepatitis B
as is apparent from the serological details provided by you.
Your disease is highly contagious so you should take precautions not to spread it to others as must have been informed to you by primary care
The Ziffex is Lamivudine
, a very good drug but has not benefitted you because the virus may be a resistant strain.
Your doctor is right in prescribing hebsera that is Adefovir a new NRTI class drug, it should be helpful for youand is worth trial.
I hope the advise would be informative and useful for you.