Periapt of Proof Against Poison is a necklace which provides immunity to poison and it can be used once per day to cure poison. This item appears in Baldur's Gate II: Shadows of Amn and Baldur's Gate II: Enhanced Edition. It is found in the Druid Grove as a drop by Ihtafeer inside Adratha's Cottage. In Baldur's Gate: Enhanced Edition it is sold by Xithiss in the Black Pits Tier 2.