Drug interaction between Warfarin and psychiatric agents may have important therapeutic effects for patients undergoing cardiac surgery. We present a case of a patient in whom concurrent treatment with Warfarin and valproic acid resulted in supratherapeutic international normalized ratio values. A discussion of the possible mechanisms for this interaction as well as a review of interactions between Warfarin and other psychiatric medications is the subject of this case report.
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http://dx.doi.org/10.1111/j.1540-8191.2011.01293.x | DOI Listing |
Semin Thromb Hemost
January 2025
Department of Neurology, Sheba Medical Center, Tel Ha'Shomer, Israel.
Coagulation factors are intrinsically expressed in various brain cells, including astrocytes and microglia. Their interaction with the inflammatory system is important for the well-being of the brain, but they are also crucial in the development of many diseases in the brain such as stroke and traumatic brain injury. The cellular effects of coagulation are mediated mainly by protease-activated receptors.
View Article and Find Full Text PDFClin Appl Thromb Hemost
December 2024
Department of Psychiatry, New York City Health and Hospitals/Bellevue, New York, NY, USA.
Although several antithrombotic strategies have been investigated for the management of cryptogenic strokes, ie, ischemic strokes without known etiologies, an optimal antithrombotic strategy for cryptogenic strokes is unknown. We aim to assess oral antithrombotic agents' comparative efficacy and safety after cryptogenic stroke to identify an optimal treatment.A systematic review and meta-analysis synthesizing evidence from randomized controlled trials (RCTs) obtained from PubMed, Embase Cochrane, Scopus, and Web of Science until February 2024.
View Article and Find Full Text PDFCureus
September 2024
Geriatric Psychiatry, Western Health, Melbourne, AUS.
Many medications have established interactions with warfarin, potentially affecting international normalized ratio (INR) levels and increasing the risk of bleeding complications. We present the case of a 74-year-old female inpatient with late-onset schizophrenia who was initiated on brexpiprazole while concurrently receiving warfarin therapy for a ventricular thrombus. Despite INR levels being within a range of 1.
View Article and Find Full Text PDFClin Pharmacol Ther
September 2024
Center for Real-World Effectiveness and Safety of Therapeutics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA.
In a prior screening study, saxagliptin, a dipeptidyl peptidase-4 inhibitor (DPP-4i), was found to have an increased rate of serious bleeding when used concomitantly with several oral anticoagulants (OACs). We aimed to confirm or refute the associations between concomitant use of individual OACs and DPP-4is and serious bleeding in a large US database, using self-controlled case series (SCCS) and case-crossover (CCO) designs. The study population was eligible Medicare beneficiaries co-exposed to a DPP-4i (precipitant) and either an OAC (object drug) or lisinopril (negative control object drug) in 2016-2020.
View Article and Find Full Text PDFAust N Z J Psychiatry
January 2025
Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia.
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