Antipoison++

Super strong anti-poison potions are made by mixing irit leaf and magic roots in a vial of coconut milk, giving 177.5 Herblore experience. It requires level 79 Herblore.

Super strong anti-poison potions cure poison, and provide the longest possible immunity to poison, at 12 minutes. That makes them far more useful then other types of Anti-poisons, as it eliminates the need to drink them constantly.

Production costs
The data in this table is based on the Grand Exchange prices of the Vial of coconut milk, herb, and secondary ingredient(s). It is accurate assuming all three items are bought off of the Grand Exchange and the resulting potion is sold afterwards.