Bindweed

"Bindweed was created specifically to counter monsters which employ acid as a weapon. Witchers also call it 'swamp potion', because monsters which spit acid or have caustic blood are most often found in swamps."

The Bindweed potion increases resistance to acid and acid-based poisons.

Preparation	Base	Duration	Toxicity
Bindweed is made by mixing ingredients providing one measure each of Aether, Quebrith and Vermilion	any base	8 hours	Medium

Source

• The Book of the Tawny Owl