Wolfsbane (5e Equipment)
From D&D Wiki
Price per dose: 200 gp
Wolfsbane, also known as monk's hood or aconite, is a deadly plant found in cool, mountainous terrain which can be easily used to craft a highly toxic poison. The plant is recognizable primarily for its flowers, which come in a range of colors, most commonly dark blue or purple, and are shaped like the hood of a monk's robes. A character who attempts to handle wolfsbane must make a DC 8 Constitution saving throw or take 2d6 poison damage. A character automatically succeeds this saving throw if they are proficient with a poisoner's kit or wearing gloves.
A character may craft wolfsbane poison from raw wolfsbane using a poisoner's kit. A character who is not proficient in the use of a poisoner's kit may craft 1d4 doses per plant. A character who is proficient in the use of a poisoner's kit may craft 2d4 doses, and a character with expertise in the use of a poisoner's kit may craft 3d4 doses. At the time of crafting, choose whether each dose is an Injury poison or an Ingested poison. Care should be taken when using wolfsbane as an Ingested poison, as its sharply bitter taste is hard to disguise.
A creature subjected to this poison takes 7 (2d6) poison damage, and must make a DC 14 Constitution saving throw. On a failed save, they become poisoned. If the creature fails this saving throw by 5 or more, the creature is also paralyzed while poisoned in this way. The poisoned creature must repeat the saving throw every hour, taking an additional 7 (2d6) poison damage on a failed save. After three successful saving throws, the poison ends. Werewolves and other shapechangers have disadvantage on this saving throw.