Antipoison (3)

Ironman verdict

2 monsters drop it. The easiest is Skeleton (Tarn's Lair) (level 72, 5/128); the best rate is Aviansie (level 89), at 5/128, about one every 5 kills. You can also make it yourself: it takes 13 Herblore and gives 50 Herblore XP, using Marrentill potion (unfinished) and Unicorn horn dust. Making ten takes 10 × Marrentill potion (unfinished) and 10 × Unicorn horn dust and gives 500 Herblore XP. Reaching level 13 Herblore takes 1,833 XP in total; the Herblore calculator counts the actions and materials to any target, and the Herblore guide has the Ironman training route. One recipe uses Antipoison (3): Potion of zombification. Antipoison (3) is members-only. It is tradeable on normal accounts, but an Ironman cannot use the Grand Exchange or trade for it, so the sources on this page are the whole list. High Alchemy turns one into 172 coins, which is 116 less than the shop price, so buying it to alch does not pay.