depends on which one you are talking about. For beastdrol, I would run a SERM like nolva or clomid, and maybe add in needto's pct for added support. Needto and some others will disagree about the SERM...i'm old school I guess you could say. SERMs always worked for me, so I see no reason to stray from them as they are cheap and effective. I would even use it with halodrol.
You will probably find a lot of the users will say run sustain alpha by primordial performance with the pct products at needto. I have never personally used it and have not seen any blood results to back the claims, but needto and many others swear by it.
Personally, I wouldn't just run the needto products for pct of beastdrol. Having them as an add on to a SERM or sustain would be great though. As far as the liver support goes, you will probably be fine with what you said, but I think you should look into some other support supplements to combat some of the other sides such as high bp, back pumps, prostate irritation, etc. When I say other supports, I mean such things as Hawthorne Berry for High BP, Taurine for back pumps, and Saw Palmetto for the prostate.