If you are going to run with Alpha Male for an extended time frame what is generally recommended is twelve weeks of continued use followed by at least two weeks off if you plan on resuming use again.
I just finished a bottle of Alpha Male and am going to hit Carbolin 19 alone for a bottle and then hit either Alpha Male or HOT-ROX Extreme after that. That way I am continually taking Carbolin 19 for an extended time in one form or another.
From my understanding of it the longer you are on Carbolin 19 the better the results are.