Darknut Extract (3.5e Equipment)
From D&D Wiki
Darknut Extract is a potent poison derived from darknuts, common (and indeed nutritious) nuts common in tropical climates. But, when the nut undergoes an extraction process in the presence of acidic fumes, it become a powerful poison capable of reducing one's motion and eventually causing paralysis. It is used to great effect by the feral gnoll tribes of the Kuundark Jungle.
Type: Contact DC 15
Initial Damage: 1d4 Dexterity damage
Secondary Damage: Paralysis
Price: 250 gp