Salfa was a potent venom extracted from the bloodstream of the Grakuka Beast. Salfa caused large amounts of adrenaline to be pumped into the victim's bloodstream. In addition to this, the poison caused chronic pain. While this sinister venom was not lethal, most would prefer death over the torturing pain of the poison. Salfa was used in the Sith ritual of Narr'Genn to insure that young Sith were forged into tools of violent hatred.