Drug interaction alerts in older primary care patients, and related medically justified actions

Author:

Tukukino Carina,Parodi López Naldy,Svensson Staffan A.,Wallerstedt Susanna M.ORCID

Abstract

Abstract Purpose To describe presented interaction alerts in older patients, and the extent to which these require further medical action for the specific patient or are already being addressed. Methods Interaction alerts presented at a physician consultation, for 274 consecutive primary care patients treated with two or more drugs (median age: 75 years; 59% female), were extracted. These alerts are based on Janusmed, a decision support integrated in the medical records that provides recommendations for managing the interactions. One general practitioner (GP) and one GP/clinical pharmacologist determined in retrospect, first independently and then in consensus, whether the alerts justified further medical action, considering each patient’s health condition. Results In all, 405 drug interaction alerts in 151 (55%) patients were triggered. Medical action in response was deemed medically justified for 35 (9%) alerts in 26 (17%) patients. These actions most often involved a switch to a less interacting drug from the same drug class (n = 10), a separate intake (n = 9), or the ordering of a laboratory test (n = 8). Out of 531 actions suggested by the alert system, only 38 (7%) were applicable to the specific patient, as, for instance, laboratory parameters were already being satisfactorily monitored or a separate intake implemented. Conclusions More than every other older patient receives drug treatment that triggers drug interaction alerts. Nine in ten alerts were already being addressed or were not relevant in the clinical setting, whereas, for the remaining tenth, some medical action, that for unknown reasons had not been taken, was reasonable. These findings show that interaction alerts are questionable as indicators of problematic prescribing.

Funder

Swedish Research Council

Swedish state under the ALF agreement between the Swedish government and the county councils

University of Gothenburg

Publisher

Springer Science and Business Media LLC

Subject

Pharmacology (medical),Pharmacology,General Medicine

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