I Have Been Going To Gym On And Off For

I have been going to gym on and off for more than 7 years now and I'm regularly going since last 2 years and also taking fat burners and cleanbeutrol (helps to remove water from body ) and also t3 which also does the same work.
Now my gym trainer has asked me to take neurabol along 5 caps after breakfast and 5 caps after dinner .
Total 10 caps a day.
Should I take it the way he has told me?
Please advice.