The study protocol includes the following assessments:

• T0: first data collection upon admission to the ward;
• T1 assessment: pharmacological review at discharge. Subjects who meet all study eligibility criteria will come consecutively enrolled in the study during admission to the department (T0).

By consulting the electronic health record, interviewing patients and family members and personal documentation, the following data will be collected:

• Remote and immediate pathological history;
• Family and social history;
• Home therapy;
• BRIEF-MPI. Home therapy and therapy suggested at discharge will be compared with the STOPPandSTART criteria to evaluate the prevalence of potential therapies inappropriate and to study possible interactions and contraindications pharmacological and for reporting possible adverse reactions to drugs. The prevalence and possible prevalence of each individual STOPPandSTART criterion will be assessed association with other variables of interest.

Percentage of elderly patients with at least one potentially inappropriate prescription identified at hospital admission (day 0) and at discharge (day 1) in the acute geriatric ward, based on the STOPP criteria. The measurement is performed by comparing the patient's medication regimen with the recommendations provided in the STOPP criteria.

Percentage of elderly patients with at least one potentially omitted prescription identified at hospital admission (day 0) and at discharge (day 1) in the acute geriatric ward, based on the START criteria. The measurement is based on the absence of indicated medications according to the START criteria recommendations.

Percentage of patients with at least one clinically significant drug-drug interaction identified through analysis of the medication regimen using standard drug interaction checkers. Assessed at admission and discharge.