Dyskinesia is a recognized but uncommon side-effect of treatment with phenytoin. Two additional cases of dyskinesia during treatment with phenytoin are described; both had radiographically documented thalamic infarctions. The reported experience to date with movement disorders induced by phenytoin is reviewed and the clinical features summarized. The available experimental evidence addressing the mechanism underlying this side effect is discussed.
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http://dx.doi.org/10.1002/mds.870080104 | DOI Listing |
BMJ Case Rep
January 2025
Clinical Pharmacology, Aalborg University Hospital, Aalborg, Region Nordjylland, Denmark
A middle childhood boy with epilepsy exhibited persistent low concentrations of valproic acid, lamotrigine and topiramate for over 1 month, primarily due to pharmacokinetic interactions involving fosphenytoin, meropenem and phenobarbital. Awareness of these clinically significant interactions is crucial for ensuring effective seizure control. However, further research is needed to establish optimal evidence-based treatment strategies in complex paediatric cases.
View Article and Find Full Text PDFInt J Clin Pharmacol Ther
January 2025
Objective: Valproic acid, frequently prescribed for neurological and psychiatric disorders, can cause hyperammonemia (HA). This retrospective study aimed to investigate the association among the basic characteristics, comorbidities, co-medications, and risk of HA in patients receiving valproic acid.
Materials And Methods: We compared groups with and without HA using data collected from the medical records of adults undergoing valproic acid monitoring between January 1, 2019, and December 31, 2021.
Neurosci Bull
January 2025
Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Pharmaceutical Sciences, College of Pharmaceutical Sciences, The Second Affiliated Hospital of Zhejiang Chinese Medical University (Xinhua Hospital), Zhejiang Chinese Medical University, Hangzhou, 310053, China.
Approximately 30%-40% of epilepsy patients do not respond well to adequate anti-seizure medications (ASMs), a condition known as pharmacoresistant epilepsy. The management of pharmacoresistant epilepsy remains an intractable issue in the clinic. Its early prediction is important for prevention and diagnosis.
View Article and Find Full Text PDFAnimal Model Exp Med
January 2025
Department of Pharmacology, Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan.
Background: Scientific evidence to guide clinicians on the use of different antiseizure drugs in combination therapy is either very limited or lacking. In this study, the impact of lacosamide and perampanel alone and in combination was tested in corneal kindling model in mice, which is a cost-effective mechanism for screening of antiseizure drugs.
Methods: The impact of lacosamide (5 mg/kg) and perampanel (0.
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