4.7 Article

Managing the Unpredictable: Mechanistic Analysis and Clinical Recommendations for Lamotrigine Treatment after Bariatric Surgery

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JOURNAL OF CLINICAL MEDICINE
卷 10, 期 23, 页码 -

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MDPI
DOI: 10.3390/jcm10235627

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anticonvulsant; pharmacotherapy; oral drug absorption; epilepsy; metabolic surgery

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This article investigates the impact of bariatric surgery on the drug lamotrigine, highlighting the challenges in its use post-surgery and the potential for varying effects on drug plasma levels. It concludes with clinical recommendations to ensure better patient care and emphasize the need for extra caution with these patients.
Bariatric surgery may alter the absorption and overall bioavailability of oral drugs. Lamotrigine is a major antiepileptic and mood stabilizer, that its use after bariatric surgery has not yet been studied. In this article, we provide a thorough mechanistic analysis of the effects of bariatric surgery on multiple mechanisms important for the absorption, bioavailability and overall pharmacokinetics of lamotrigine. Attributable to its pharmacokinetic properties and drug characteristics, the use of lamotrigine after bariatric surgery may be challenging. The complex situation in which some mechanisms may lead to increased drug exposure (e.g., decreased metabolism, weight loss) while others to its decrease (e.g., hampered dissolution/solubility, decreased gastric volume), may result in lowered, unchanged, or enhanced lamotrigine plasma levels after the surgery. We conclude with a set of clinical recommendations for lamotrigine treatment after bariatric surgery, aiming to allow better patient care, and emphasizing the extra caution that needs to be taken with these patients.

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