In Baphomets Fluch 2.5 nicht weiterzukommen ist nicht schön. Fragen zum Spielverlauf können hier gestellt werden. Game Help: Broken Sword 2.5 is a real brain twister for you? Ask questions about the course of the game here.
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You have to convince the pharmacist that you actually have a condition that would bring on the need for laxatives. You might wanna check the items in your inventory again for suggestions how to to achieve that.