According to the historical registers of the pharmacy, a contract redacted in 1778 mentions that the Genoese surgeon and chemist Lorenzo Robello was tasked to procure ingredients for the pharmacy, prepare the medicines and administer them "to the friars and to external patients". At that time it was not possible to find a friar with the necessary qualifications; the resolve of the Carmelite Order, however, remained that the pharmacy was to be run primarily by friars and, by 1792, the fully-qualified chemist friar Giovanni della Croce assumed the direction of the pharmacy, updated its equipment and furnished the dispensary room with the boiserie which is still visible today.