D&D 5.5e Monster Manual
Poison
Varies
Creatures whos wounds are exposed to this venom by a creature, object, or weapon must succeed on a DC 14 Constitution Saving Throw, or have the poisoned condition for 1 minute. While poisoned in this way, the creature has the paralyzed condition. The creature repeats the save at the end of each of it's turns, ending the effect on a success.
Similar to how a jellyfish injects venom into it's prey, Chuul venom is a faintly red, clear liquid, sourced from a Chuul's long red vine like stingers near their maw. Highly potent, but not deadly, this paralytic toxin quickly numbs the whole body, causing the poisoned creature to be unable to move.
Cost: 600 gp
Weight: .5