Mullpeppers Apothecary

=='''&nbsp Mullpeppers Apothecary'''== Found only in the Lego Harry Potter: Years 1-4 video game.

Apparently, a medical potions and ingredients store (not accessible by your character, but the sign is clearly visible) located in Diagon Alley, to the left of Slug & Jiggers and to the right of Wiseacres Wizarding Equipment (where your Lego character can buy-up their spells).