Time-Trends of Drug-Drug Interactions among Elderly Outpatients in the Piedmont Region (Italy) : A Population-Based Study

Adverse drug reactions (ADRs) are a major health problem in the primary care setting, particularly among the elderly population. While the high frequency of ADRs in the elderly has several causes, a major and common determinant is polypharmacy, which can in turn increase the risk of drug-drug interactions (DDIs). In this paper, we analyzed the drugs prescriptions dispensed to elderly outpatients, to assess changes in the prevalence of selected DDIs in the period 2013−2019. Overall, about 15% of the patients aged >65 years were poly-treated. Among them, a decreasing trend in prevalence was observed for the majority of DDIs during the study period. This trend was particularly noticeable for DDIs involving fluoroquinolones and vitamin K antagonists, where a sharp reduction of over 40% was observed. On the opposite, a small increase in prevalence was observed for the association of antidiabetics and beta-blocking agents and for that of clopidogrel and PPIs. While the occurrence of most of the considered DDIs among poly-treated elderly decreased over time, the prevalence of some of them is still worrying. The complexity of the national drug formularies, as well as the increased number of prescribing actors that are involved, further urges the update of DDI lists to be used to monitor drug appropriateness and reduce avoidable ADRs.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:19

Enthalten in:

International journal of environmental research and public health - 19(2022), 12 vom: 15. Juni

Sprache:

Englisch

Beteiligte Personen:

Galai, Elisabetta [VerfasserIn]
Scotti, Lorenza [VerfasserIn]
Gilardetti, Marco [VerfasserIn]
Ucciero, Andrealuna [VerfasserIn]
Ferrante, Daniela [VerfasserIn]
Poluzzi, Elisabetta [VerfasserIn]
Genazzani, Armando A [VerfasserIn]
Barone-Adesi, Francesco [VerfasserIn]

Links:

Volltext

Themen:

Drug-drug interactions
Elderly
Journal Article
Research Support, Non-U.S. Gov't
Time trend

Anmerkungen:

Date Completed 27.06.2022

Date Revised 08.03.2023

published: Electronic

Citation Status MEDLINE

doi:

10.3390/ijerph19127353

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM342636898