Greater Detoxify Potions removes a larger amount of poison from the user. They are commonly reffered to as GDPs.They are very useful when hunting poisonous creatures such as Poison Beasts and Poison Elementals. Like all Potions, one can only carry up to 20 of them at a time. They can be made by Clerics, but a lot of Clerics don't like to make them due to their relatively high Mana cost.