PMID- 33685912 OWN - NLM STAT- MEDLINE DCOM- 20210514 LR - 20231031 IS - 1757-790X (Electronic) IS - 1757-790X (Linking) VI - 14 IP - 3 DP - 2021 Mar 8 TI - Treatment with the direct oral anticoagulants (DOACs) apixaban and rivaroxaban associated with significant worsening of behavioural and psychological symptoms of dementia (BPSD). LID - 10.1136/bcr-2020-240059 [doi] LID - e240059 AB - We report the cases of two patients who developed worsening behavioural and psychological symptoms of dementia (BPSD), coinciding with starting the factor Xa inhibitor direct oral anticoagulant medications apixaban and rivaroxaban, respectively. Both patients required detaining under the Mental Health Act. Their symptoms improved significantly, within 2 weeks, on switching to alternative anticoagulant therapies and they were both discharged from the acute psychiatric ward. Front-line staff should partake in postmarketing surveillance of medications, completing the Medicines and Healthcare products Regulatory Agency yellow cards for example (UK). There is increasing evidence for an aetiological role of cerebral mitochondrial dysfunction in neuropsychiatric disorders. Development of a rating scale of drugs that are potentially less toxic to cerebral mitochondria could inform national prescribing guidelines and enable safer treatments to be offered to older people, reducing the likely hood of them experiencing apparent BPSD. CI - (c) BMJ Publishing Group Limited 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. FAU - Porter, Kim Maria Frances AU - Porter KMF AD - Older Peoples Community Mental Health Team, Somerset NHS Foundation Trust, Frome, Somerset, UK. FAU - Hargreaves, Iain Parry AU - Hargreaves IP AD - Department of Molecular Neuroscience, UCL Queen Square Institute of Neurology, National Hospital, London, UK i.hargreaves@ucl.ac.uk. FAU - De Souza, Stephen AU - De Souza S AD - Older Peoples Psychiatric Inpatient Unit, Somerset NHS Foundation Trust, Taunton, Somerset, UK. FAU - Goddard, Rebecca AU - Goddard R AD - Complex Treatment and Intervention Team, Avon and Wiltshire Mental Health Partnership NHS Trust, Midsomer Norton, Somerset, UK. LA - eng PT - Case Reports PT - Journal Article DEP - 20210308 PL - England TA - BMJ Case Rep JT - BMJ case reports JID - 101526291 RN - 0 (Anticoagulants) RN - 0 (Pyrazoles) RN - 0 (Pyridones) RN - 3Z9Y7UWC1J (apixaban) RN - 9NDF7JZ4M3 (Rivaroxaban) RN - I0VM4M70GC (Dabigatran) SB - IM MH - Administration, Oral MH - Aged MH - Aged, 80 and over MH - Anticoagulants/adverse effects MH - Dabigatran MH - *Dementia/chemically induced/drug therapy MH - Humans MH - Pyrazoles MH - Pyridones/adverse effects MH - *Rivaroxaban/adverse effects PMC - PMC7942237 OTO - NOTNLM OT - drugs: CNS (not psychiatric) OT - memory disorders (psychiatry) OT - psychiatry (drugs and medicines) OT - psychiatry of old age OT - unwanted effects / adverse reactions COIS- Competing interests: None declared. EDAT- 2021/03/10 06:00 MHDA- 2021/05/15 06:00 PMCR- 2021/03/08 CRDT- 2021/03/09 06:01 PHST- 2021/03/09 06:01 [entrez] PHST- 2021/03/10 06:00 [pubmed] PHST- 2021/05/15 06:00 [medline] PHST- 2021/03/08 00:00 [pmc-release] AID - 14/3/e240059 [pii] AID - bcr-2020-240059 [pii] AID - 10.1136/bcr-2020-240059 [doi] PST - epublish SO - BMJ Case Rep. 2021 Mar 8;14(3):e240059. doi: 10.1136/bcr-2020-240059.