The Witcher Potions - Bindweed
Bindweed Effects: This potion increases resistance to acid and acid-based poisons.

Preparation: Bindweed is made by mixing ingredients providing one measure each of aether, quebrith and vermilion; strong alcohol must be used as a base.

Duration: Long

Toxicity: Medium

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.