In NetHack, a mostly dangerous potion that causes paralysis when quaffed. If the potion is blessed, the paralysis lasts for 13 to 22 turns; if uncursed, 25 to 34 turns; if cursed, 37 to 46 turns (this is a probably a death sentence if anything hostile is near you). In all cases, your Dexterity is abused. The paralysis is ineffective if you are wearing a ring of free action or possess the equivalent intrinsic.

This potion is obviously much more useful as a projectile weapon. The target is paralyzed for 1 to 25 turns. Inhaling the vapors paralyzes you for 1 to 5 turns.