Giant centipede venom

injury (venom) - 300 gp
VenomThis poison must be harvested from a dead or incapacitated giant centipede.
A creature subjected to this poison must succeed on a DC 11 Constitution saving throw or take 10 (3d6) poison damage. If the poison damage reduces the target to 0 hit points, the target is stable but poisoned for 1 hour, even after regaining hit points, and is paralyzed while poisoned.
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  1. DnD 5e Poisons › Giant centipede venom