Potion green

A Potion of Poison.

Poison is a status effect that will slowly decrease a mob or player's health, but never kill them; instead, it will leave them with half a heart if given long enough. The health bar will turn bile yellow if a player is poisoned. Poison can be inflicted by potions, the /effect command, or a Cave Spider's bite.


  • Tiny Slimes are immune to poison; this is because they only have half a heart.
  • Potions of Poison are one of the three potions that have no extended effect when on level II.
  • Undead mobs are immune to poison; they are also immune to Regeneration. 
  • A Cave Spider cannot poison if it has the Weakness effect on it.
  • A normal Spider is immune to Poison as well.

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