Old School RuneScape Wiki
This article is about the detriment. For the item needed for the Ernest the Chicken quest, see Poison (item).
Not to be confused with Venom.

A player taking damage from poison

Poison hitpoints minimap.png

Poison is a detriment that players and monsters suffer when they are attacked by a poisonous weapon. Many NPCs are able to inflict poison. Players can use poisonous weapons or the smoke set of spells from the Ancient Magicks to cause their target(s) to become poisoned. The maximum damage from this can range from 1 to over 20 depending on the type of poison.

When a player or monster is poisoned, a number appears with a green hitsplat (Poison hitsplat.png) instead of a red or blue one, indicating the amount of damage the poison has dealt. The player is then damaged by this poison once every 18 seconds unless it is cured or it wears off. Poison wears off over time, decreasing by a value of one for every minute that passes (four strikes).

Monsters that can inflict poison may do so regardless of whether or not they inflict any damage, even if protection prayers are used. Player inflicted poison does need to deal damage to apply.

The list of poisons in terms of deadliness are as such:

Curing poison

Poison can be cured through antidotes in the form of anti-poison potions. Anti-poison potions come in various levels, which provide progressively longer immunity to poisoning.

Only the normal antipoison is available to free-to-play players.

The Serpentine helm while worn provides full immunity to poison, as well as venom.

Weapon poisoning (members only)

Members can inflict poison by using weapon poisons made through the Herblore skill on certain weapons. There are several types of weapon poisons, which deal progressively more damage.

Only spears, arrows, bolts, darts, throwing knives, javelins, daggers, and hastae could be poisoned. The abyssal tentacle is also capable of poisoning players.


  • A player must achieve a successful hit with the poisoned weapon to poison their enemy. The poison's duration can be reset while the enemy is poisoned with the same (if not lower) chance as on an unpoisoned enemy.
  • A weapon poison potion can only be used on five thrown objects before running out (e.g. 5 arrows or 5 darts).
  • If you poisoned a monster while fighting it, you will not receive experience from the poison damage (you will receive full Slayer experience, however, even if the poison applied wasn't yours).
  • Some monsters, such as wall beasts, turoths, waterfiends, and the God Wars Dungeon bosses, are immune to poison.
  • Poison can be removed from weapons with a cleaning cloth, obtained by using Karamja rum with silk or by purchasing it directly from Tamayu after completing Tai Bwo Wannai Trio.
  • Poison interrupts some actions, including most skilling actions and the home and minigame teleports. Poison does not interrupt combat in any way.


  • If you are poisoned, you can simply left-click the Hitpoints icon on the minimap to cure it, as long as you have any sort of antipoison in your inventory.
  • Being afflicted by poison does not interrupt certain skilling actions, such as Woodcutting or Fishing.