This skill category enables you to build up an immunity to non-magical poisons and harmful herbal potions, salves and oils. Poison Resistance I makes the character immune to all harmful level one potions. Poison Resistance II stops all level one and two harmful potions from affecting you, and so on. Poison Resistance has no effect against magical potions and poisons.
This skill also allows you to resist the effects of poison caused by most monsters, but not the non-poison damage that a poison-causing monster causes by hitting you.