I have stacked "prohormones" many times with injectable steroids. In fact, i dont even use legitimate oral steroids anymore, because i get results that are just as good with the prohormones, for a lot cheaper, and legally. I have stacked test, deca, eq, all with hdrol, sdrol, and epistane. I highly recommend hdrol, its about as potent as tbol, and has few side effects. Does not aromatize. Epistane is also pretty clean and gentle, but effective. Sdrol (superdrol) works great, but turns my piss into apple cider and makes me feel a bit off. Plus it wrecks your lipid profiles. I have not used any other "prohormones" so i cannot comment on any other ones on the market.