Periapt of Proof Against Poison

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's not known where this item can be found.

In-game description
"Periapt of Proof Against Poison This periapt is a large gemstone hanging on a thick golden chain. Eunuchs from Kara-Tur would wear this particle periapt when sampling their emperor's food."