When asking about random products it helps to say what's in them and what manufacturer they are. My guess is the dren is one I saw that was a YC mix with some other crap that I don't know what it is. Halodrol liquigels are a bunch of random crap thrown in a capsule and named after a steroid, and I have no idea why you'd take milk thistle but sure it can't hurt. Arginine and ZMA, sure, won't hurt.
This thread sounds like you walked into a GNC, grabbed 5 boxes at random off the shelves and are asking how they interact even though nobody uses those exact 5 items. I would use it and just space the two "mix of random crap" items apart a couple hours, and if the dren is the one I looked up watch for side effects related to the stimulants in them. Yohimbine is also an MAOI, so be aware of that if you take other drugs.