A small door located on the western front of the Monastery of San Giovanni, towards the current Borgo Pipa (formerly Borgo S. Giovanni), opens the visit path of the Ancient Pharmacy of San Giovanni Evangelista. Although the first records of a Pharmacy inside the Benedictine Monastery of San Giovanni Evangelista date back to 1201, the year of its opening to the public, its existence is close to a millennium. A door with a beautiful eagle carved in wood, symbol of San Giovanni Evangelista, leads into the second room, the so-called mortar room. The marble and bronze mortars, of various shapes and sizes, essential tools for the pharmacist for the grinding and crushing of herbs, date back to the 17th and 18th centuries. The next room, called the "Sirens room", owes its name to the allegorical figures carved in the pilasters of the shelves which, in turn, contain a rich collection of jars, albarellos, manuscripts, and rare pharmaceutical publications from the 16th-19th centuries. The fourth room is the actual laboratory, with the well and the entrance to the cellar, where many of the spices used for the preparation of medicines were stored. Among the rare furnishings of the room, in addition to the sixteenth-century Veronese marble washbasins, a series of stills and glass bottles hanging on the walls stand out, of various origins and almost all dating back to the 18th century. These objects constitute the most significant evidence of the intense production activity of medicines carried out by the Monastery's Pharmacy, which, in addition to the most common and traditional processing procedures of the pharmaceutical workshop, over time also incorporated those introduced by alchemical practice and its instruments.