Buy OSRS Antipoison(3)
The Antipoison(3) is a potion in Old School RuneScape with three doses. Each dose cures poison and gives you immunity to poison for 90 seconds. This makes it a smart item to carry when you fight monsters that use poison attacks.
Antipoison can also help against venom. Drinking one dose turns venom into regular poison. Drinking a second dose then removes the poison completely.
Players make this potion with the Herblore skill. It is made by adding unicorn horn dust to a marrentill potion (unf). The potion is tradeable but does not stack, and it weighs nothing, so it is easy to keep a few in your inventory.
Antipoison is one of the cheapest ways to deal with poison in the game. It costs less than superantipoison, which gives a longer immunity of six minutes. Antipoison is also available on free-to-play worlds, so every player can use it.
Stock up on Antipoison(3) before heading into poison-filled areas like Karamja or dungeons with venomous monsters. A few of these potions can save your Hitpoints and keep your trip going longer.