Associated factors of potential drug-drug interactions and drug-food interactions in patients with multiple sclerosis.
Ther Adv Chronic Dis 2022;
13:20406223221108391. [PMID:
35959503 PMCID:
PMC9358348 DOI:
10.1177/20406223221108391]
[Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 06/01/2022] [Indexed: 12/15/2022] Open
Abstract
Background:
Multiple sclerosis (MS) is the most common immune-mediated demyelinating
disease in younger adults. Patients with MS (PwMS) are vulnerable to the
presence of potential drug–drug interactions (pDDIs) and potential drug–food
interactions (pDFIs) as they take numerous medications to treat MS,
associated symptoms and comorbidities. Knowledge about pDDIs and pDFIs can
increase treatment success and reduce side effects.
Objective:
We aimed at determining the frequency and severity of pDDIs and pDFIs in
PwMS, with regard to polypharmacy.
Methods:
In the cross-sectional study, we analysed pDDIs and pDFIs of 627 PwMS aged
⩾18 years. Data collection was performed through patient record reviews,
clinical examinations and structured patient interviews. pDDIs and pDFIs
were identified using two DDI databases: Drugs.com Interactions Checker and
Stockley’s Interactions Checker.
Results:
We identified 2587 pDDIs (counted with repetitions). Of 627 PwMS, 408 (65.1%)
had ⩾ 1 pDDI. Polypharmacy (concomitant use of ⩾ 5 drugs) was found for 334
patients (53.3%). Patients with polypharmacy (Pw/P) were found to have a
15-fold higher likelihood of having ⩾ 1 severe pDDI compared with patients
without polypharmacy (Pw/oP) (OR: 14.920, p < 0.001).
The most frequently recorded severe pDDI was between citalopram and
fingolimod. Regarding pDFIs, ibuprofen and alcohol was the most frequent
severe pDFI.
Conclusion:
Pw/P were particularly at risk of severe pDDIs. Age and educational level
were found to be factors associated with the occurrence of pDDIs,
independent of the number of medications taken. Screening for pDDIs/pDFIs
should be routinely done by the clinical physician to increase drug safety
and reduce side effects.
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