Consuming this potion results in: "Failed to activate 'Bloodhaze Berserker Brew': Invalid jpower ID!"
Probably saved your life. With that said, they might be broken since "Targus" is no longer a thing, or maybe not :)
I don't like the potions, I think I know where they still drop - but if you find naymore after reset let me know and I will remove them.
This spawned for me today in the Bone Pit quest with the Blood Reaver result. (on his corpse)
Ah found it. Removed.