Impact of a multidisciplinary approach to polypharmacy management in community-dwelling older adults: insights from a specialized outpatient clinic

Objectives: The increase in polypharmacy among older adults increases the risk of drug-related problems, making multidisci-plinary interventions essential. This study evaluated the impact of a multidisciplinary polypharmacy consultation on medicationmanagement and outcomes in older outpatients.Methods: This prospective observational study at a Spanish teaching hospital involved geriatricians, clinical pharmacists, andnurses. Older adults (≥ 75 years) with polypharmacy underwent medication review at baseline and at 3 and 6 months. Data onmedication use, adherence to Screening Tool of Older Person's Prescriptions (STOOP) criteria, and anticholinergic burden wereanalyzed.Results: The study included 104 older adults (mean age 86.2 years; 66% female). An average of 3.6 recommendations per par-ticipant was made (63.8% acceptance rate). Common drug-related problems were adverse effects (20%), non-adherence (18.1%), and incorrect dose/regimen (14.4%). Interventions led to an average reduction of 1.7 medications per patient, with 1.3 dosage orregimen changes and 1.1 new prescriptions. The mean number of medications decreased from 9.6 at baseline to 8.9 at 3 months(p < 0.001) and remained below baseline at 6 months. STOPP criteria violations per patient dropped from 1.2 to 1.0 (p = 0.036). Of the 126 medications flagged by STOPP criteria, 68.3% were addressed, 24.6% discontinued, mainly psychotropics, and 89.3%of these discontinuations were maintained. The anticholinergic burden decreased from 1.3 to 1.1 at 3 months (p = 0.036) andremained below baseline at 6 months.Conclusions: A multidisciplinary clinic effectively managed polypharmacy in older adults by reducing medication load andimproving appropriateness per STOPP criteria, highlighting the importance of proactive medication management.Trial Registration: ClinicalTrials.gov: NCT05408598 (March 1, 2022).