throw it away.. it is worthless.. i ran 100mg ED weeks 1-8 of my 12 week 600mg test e 400mg deca cycle and noticed no difference at all on or off it.. i still had to take adex to fight the estrogen and all together think it was a waste of time/money.. absolutley worthless stuff.
if you have it alredy go ahead and run it right up to pct of clomid+nolva.. don't bother using the proviron for PCT.