Antidote++

Antidote++ (or Antipoison++) are made by mixing clean irit and magic roots in a vial of coconut milk, requiring 79 Herblore and giving 177.5 Herblore experience. Super strong anti-poison potions cure poison and provide the longest possible immunity to poison, which is 12 minutes. This makes them far more useful than other types of anti-poisons, eliminating the need to drink constantly.

This potion is rarely made through Herblore, as the secondary ingredient, Magic roots, are considerably rare and/or hard to obtain.

If your antipoison is about to run out you'll get the message: "Your immunity to poison is about to expire."