Formula: Petri's philtre

Formula: Petri's philtre is an alchemy formula in that is needed to craft Petri's Philter. Geralt starts the game with this formula.
de:Rezept: Petris Filter
fr:Formule : philtre de Petri
it:Formula: Filtro di Petri
pl:Receptura: Filtr Petriego
ru:Рецепт: Зелье Петри
Category:The Witcher 2 crafting diagrams