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  1. Chong Guan N, Weng Hou S, Abousheishaa AA, Sue Yin L, Sulaiman ARB, Chee Khin K
    Curr Drug Res Rev, 2022 Nov 23.
    PMID: 36420879 DOI: 10.2174/2589977515666221123093522
    BACKGROUND: Individuals with severe mental illness are prone to severe COVID-19 infection with increased morbidity and mortality. Psychiatric patients are often concerned about the potential interactions between the newly approved COVID-19 vaccines in Malaysia and psychotropic drugs like antidepressants. To date, such data are unavailable.

    OBJECTIVES: This review aims to clear the polemics of COVID-19 vaccine-antidepressants interaction in these 3 aspects: (1) cytokines and cytochrome P450 pathway, (2) blood-brain barrier (BBB) involvement and (3) and its interaction with polyethylene glycol (PEG), the potential allergenic culprit following COVID-19 vaccination.

    METHODS: A systemic scoping approach was employed to search for peer-reviewed journal articles across four healthcare and scientific databases (PubMed, MEDLINE, PsycINFO and Cumulative Index to Nursing and Allied Health Literature (CINAHL)).

    RESULTS: Antidepressants metabolism often involve the CYP450 enzymes. Vaccine-antidepressants interactions are probable, likely to be triggered by interactions of CYP450 enzymes and inflammatory cytokines, resulting in diminished drug metabolism and chemical detoxification. Aside, PEG, the excipient in mRNA-based COVID-19 vaccines and antidepressants, has been reported as the anaphylaxis causative allergen. However, whether it leads to a synergistic, potentiation or antagonistic effects when used in combination, remains to be elucidated.

    CONCLUSION: Psychotropic medications, including antidepressants, showed potentially relevant safety risk for COVID-19 patients. These vulnerable patient group must be prioritized for early access to safe and efficacious COVID-19 vaccines, as vaccination remains the most important public health intervention to tackle the ongoing COVID-19 pandemic.

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