20.500.12556/RUL-144168 Potential Drug-Drug Interactions among Patients with Schizophrenia Spectrum Disorders Prevalence, Association with Risk Factors, and Replicate Analysis in 2021 Background and Objectives: Patients with schizophrenia are often exposed to polypharmacotherapy, which may lead to drug—drug interactions. The aim of the study was to investigate the prevalence of potential drug—drug interactions (pDDIs) in hospitalized patients with schizophrenia spectrum disorders and to identify factors associated with pDDIs and manifested symptoms and signs. Materials and Methods: This cross-sectional observational study included 311 inpatients admitted to a psychiatric hospital. The LexiComp drug interaction program was used to identify pDDIs in 2014. Factors associated with the prevalence of pDDIs and factors related to clinically observed symptoms and signs were assessed using multivariable regression. In addition, replicate analysis of pDDI was performed using 2021 program updates. Results: The prevalence of pDDIs was 88.7%. Our study showed that more than half of the patients received at least one drug combination that should be avoided. The most common pDDIs involved combinations of two antipsychotics or combinations of antipsychotics and benzodiazepines, which can lead to cardio-respiratory depression, sedation, arrhythmias, anticholinergic effects, and neuroleptic malignant syndrome. The number of prescribed drugs was a risk factor for pDDIs (OR 2.85; 95% CI 1.84–5.73). All groups of clinically observed symptoms and signs were associated with the number of drugs. In addition, symptoms and signs characteristic of the nervous system and psychiatric disorders were associated with antipsychotic dosage (IRR 1.33; 95% CI 1.12–1.58), which could contribute to the development of extrapyramidal syndrome, insomnia, anxiety, agitation, and bipolar mania. The 2021 version of the drug interaction program showed a shift in drug interactions toward a lower risk rating, implying less severe patient management and possibly less alert fatigue. Conclusions: Patients with schizophrenia spectrum disorders are at high risk of developing drug—drug interactions. Optimization of drug therapy, patient monitoring, and use of drug interaction programs could help to prevent pDDIs and subsequent adverse drug events. potential drug—drug interactions schizophrenia antipsychotics drug interaction program symptoms and signs risk factors možne interakcije med zdravili abdominalni stent-graft program medsebojnega delovanja zdravil simptomi in znaki dejavniki tveganja true false true Angleški jezik Slovenski jezik Članek v reviji 2023-02-02 11:18:07 2023-02-02 11:18:13 2023-02-04 03:17:51 0000-00-00 00:00:00 2023 0 0 13 str. iss. 2, art. 284 Vol. 59 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 615.214:616.895.8 1648-9144 10.3390/medicina59020284 140427011 medicina-59-00284.pdf medicina-59-00284.pdf 1 D70C163DAE5EA8D6B87DAE8E9543ABC4 1592e09c26b107cdca4b44bab3111c71603f9a4d9939396c7eb2d6917db9a30e b41635af-a2e2-11ed-9c94-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=166341 https://www.mdpi.com/1648-9144/59/2/284 1 9f4228b8-a2e2-11ed-9c94-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=166339 Fakulteta za farmacijo 0 0 0