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A Schattner, A Al-Bewerat
No abstract text is available yet for this article.
October 2016: Netherlands Journal of Medicine
Sara Sanz-Blasco, Juan C Piña-Crespo, Xiaofei Zhang, Scott R McKercher, Stuart A Lipton
A recently identified mechanism for oligomeric Aβ-induced glutamate release from astrocytes involves intracellular Ca elevation, potentially by Ca-dependent vesicular release. Evidence suggests that levetiracetam (LEV; Keppra), an antiepileptic drug, can improve cognitive performance in both humans with mild cognitive impairment and animal models of Alzheimer disease. Because LEV acts by modulating neurotransmitter release from neurons by interaction with synaptic vesicles, we tested the effect of LEV on Aβ-induced astrocytic release of glutamate...
June 15, 2016: Neuroreport
Sophie Boudriau, Cecilia Hanzel, Julie Massicotte, Laura Sayegh, Jing Wang, Marc Lefebvre
BACKGROUND: Rapidly disintegrating or 'fast-melt' oral formulations have been developed recently to facilitate drug intake among patients. Even though these formulations have helped to improve therapy adherence, some of their limitations include: the dissolution time, their facility to be swallowed, and the dosage strengths that may be accommodated. To overcome these limitations, a novel, porous, quickly disintegrating, and easier-to-swallow fast-melt formulation based on powder-liquid, three-dimensional printing (3DP) technology has been developed...
June 2016: Drugs in R&D
Tal Lavi-Blau, Dana Ekstein, Miri Y Neufeld, Sara Eyal
Surveys among women with epilepsy (WWE) show that they receive their essential pregnancy-related information from many sources, including the internet. Our aim was to assess the types of websites provided by searching Google for the use of four antiepileptic drugs (AEDs) during pregnancy and lactation. The search was performed on 40 computers used by health-care professionals, on 40 computers used by nonhealth-care professionals, and on 5 computers used by WWE in Israel and on 8 computers used by nonhealth-care professionals in the U...
February 2016: Epilepsy & Behavior: E&B
Gail D Anderson, Russell P Saneto
Modified-release or extended-release (XR) formulations are used to decrease the frequency of dosing for drugs with rapid elimination, to improve convenience and adherence. Use of a modified-release formulation can decrease the peak to trough fluctuations in serum concentrations and theoretically improve the therapeutic benefit of the drug, by decreasing adverse events associated with the higher peak concentrations. Once-daily formulations of lamotrigine (Lamictal XR(®)), levetiracetam (Keppra XR(®)), oxcarbazepine (Oxtellar XR(®), Apydan(®) extent) and topiramate (Qudexy XR™, Trokendi XR™) are approved for the treatment of focal and/or generalized onset seizures...
August 2015: CNS Drugs
Vivek Ramakrishnan, Robert Dahlin, Omid Hariri, Syed A Quadri, Saman Farr, Dan Miulli, Javed Siddiqi
BACKGROUND: Seizures account for significant morbidity and mortality early in the course of traumatic brain injury (TBI). Although there is sufficient literature suggesting short-term benefits of antiepileptic drugs (AEDs) in post-TBI patients, there has been no study to suggest a time frame for continuing AEDs in patients who have undergone a decompressive craniectomy for more severe TBI. We examined trends in a level-II trauma center in southern California that may provide guidelines for AED treatment in craniectomy patients...
2015: Surgical Neurology International
(no author information available yet)
INTRODUCTION: Acute hemorrhagic leukoencephalitis is a rare acute inflammatory myelinopathy of central nervous system with high mortality. We report a case of an unusual presentation of acute hemorrhagic leukoencephalitis with autoimmune myopathy and a complete recovery with steroids and plasmapheresis. METHODS: A 24-year-old female admitted with generalized seizure, lethargy, but no focal neurological signs. Head scans revealed right frontal hypodensity with loss of basal cisterns, mild transfalcine shift to the left, a mass lesion with abnormal signal and multiple small hemorrhages...
November 2014: Journal of Vascular and Interventional Neurology
Ekokobe Fonkem, Paul Bricker, Diana Mungall, Jose Aceves, Eromata Ebwe, Wei Tang, Batool Kirmani
Levetiracetam, trade name Keppra, is a new second generation antiepileptic drug that is being increasingly used in brain tumor patients. In patients suffering with brain tumors, seizures are one of the leading neurologic complications being seen in more than 30% of patients. Unlike other antiepileptic drugs, levetiracetam is proposed to bind to a synaptic vesicle protein inhibiting calcium release. Brain tumor patients are frequently on chemotherapy or other drugs that induce cytochrome P450, causing significant drug interactions...
2013: Frontiers in Neurology
Wenxia Luo, Sing Teang Kong, Shili Yang, Bernice Choi Wai Chan, Paul C Ho
BACKGROUND: A simple LC-MS/MS method was developed and validated for the quantification of levetiracetam (LEV, Keppra®), a broad-spectrum antiepileptic drug (AED) in rat dried blood spots (DBS). LEV was simply extracted with methanol spiked with adenosine (ADE) as IS before LC-MS/MS analysis. The correlation between the DBS and plasma concentrations of LEV was also determined. RESULTS: Linearity was from 0.067-60 µg/ml for LEV in DBS samples. The intra- and inter-day accuracy and precision of the assay met validation acceptance criteria...
August 2013: Bioanalysis
Nathalie Toublanc, Brigitte D Lacroix, Junichi Yamamoto
  Levetiracetam [E Keppra(®)] is a second generation antiepileptic drug for different types of epilepsy in adults and children ≥1 month. The objective is to develop a population pharmacokinetic model to describe the pharmacokinetics of levetiracetam in Japanese children and adults as well as North American children, the purpose being to explore potential dosing recommendations in Japanese children. Levetiracetam plasma concentration-time data were obtained from Japanese adult and pediatric clinical studies...
2014: Drug Metabolism and Pharmacokinetics
Hasan H Sonmezturk, Nabil J Azar
Extended release (XR) formulation of levetiracetam (LEV) is approved by the Food and Drug Administration as an add-on to other antiepileptic drugs (AEDs) for adults with partial onset seizures. This is based on class-I evidence demonstrating significant seizure reduction in once daily dosing. Keppra-XR is marketed with the brand name of Keppra XR since 2008 (UCB Pharma). Its original immediate release (IR) formulation has been in the market since 2000. LEV has a unique molecular structure which is chemically unrelated to existing AEDs...
2011: Journal of Central Nervous System Disease
A Kh Magomedova, M M Magomedov, A M Magomedova, M F Magomaev
No abstract text is available yet for this article.
2012: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
Sandra C Bishop-Freeman, Nina C Kornegay, Ruth E Winecker
Levetiracetam (Keppra®) is one of the newer anticonvulsant drugs used to treat seizures. Since 2003, the North Carolina Office of the Chief Medical Examiner Toxicology Laboratory has collected quantitative levetiracetam data in samples for 56 postmortem cases. The data presented herein will provide the forensic community with concentrations to assist in the interpretation of levetiracetam in postmortem blood. Decedents were divided into two groups according to manner of death as determined by the medical examiner for the purposes of studying levetiracetam concentrations...
July 2012: Journal of Analytical Toxicology
S O Aĭvazian, Iu S Shiriaev
The objective was to retrospectively study the efficacy and safety of levetiracetam (keppra) as an add-on treatment of pharmacoresistant forms of epilepsy in children. We have analyzed medical histories of 192 patients with pharmacoresistant epilepsy admitted to a neurological department of the Research and Treatment Center of Children's Medical Care over the period of 2008-2011. The patient's age varied in the range from 6 months to 19 years (mean age 5.7 years). The results of the study revealed the high efficacy of levetiracetam as an add-on treatment of pharmacoresistant epilepsy in children...
2011: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
Jennifer M Mitchell, Leah E Grossman, Allison R Coker, Robert O Messing
BACKGROUND: Levetiracetam (Keppra) is a commonly prescribed anticonvulsant that has been shown to attenuate alcohol consumption in an open-label study of treatment-seeking, alcohol-dependent subjects. METHODS: Here we performed a 42-day placebo-controlled, double-blind, randomized crossover trial to evaluate the effects of levetiracetam on moderate to heavy drinkers receiving either a low (500-1000 g/d) or a moderate (1000-2000 g/d) dose. Electronic diaries were used to monitor daily ethanol intake...
April 2012: Journal of Clinical Psychopharmacology
Robert H Howland
Tardive dyskinesia (TD) is a serious complication associated with the long-term use of dopamine receptor-blocking drugs. No drugs are approved by the U.S. Food and Drug Administration for treating TD. A number of drugs appear to have some benefit for its treatment, including branched-chain amino acids, piracetam (Nootropil(®), Nootrop(®), Nootropyl(®)), clonazepam (Klonopin(®)), levetiracetam (Keppra(®)), propranolol (Inderal(®)), and clonidine (Catapres(®)), and they would be clinically reasonable to try...
July 2011: Journal of Psychosocial Nursing and Mental Health Services
Trond Myhrer, Siri Enger, Morten Jonassen, Pål Aas
Results from studies based on microinfusions into seizure controlling brain sites (area tempestas, medial septum, perirhinal cortex, posterior piriform cortex) have shown that procyclidine, muscimol, caramiphen, and NBQX, but not ketamine, exert anticonvulsant effects against soman-induced seizures. The purpose of the present study was to examine whether levetiracetam (Keppra(®)) may enhance the anticonvulsant potency of the above drugs to become optimally effective when used systemically. Levetiracetam has a unique profile in preclinical models of epilepsy and has been shown to increase the potency of other antiepileptic drugs...
December 2011: Neurotoxicology
Christine L Fitzgerald, Mercedes P Jacobson
OBJECTIVE: We report on 4 patients having an increased incidence of seizures when treatment was switched from brand name levetiracetam (Keppra) to generic levetiracetam formulations. CASE SUMMARY: Patients reported an increase in seizure activity to their neurologists after treatment was switched from Keppra to generic levetiracetam formulations. To confirm the timeline of increased seizure activity with use of the generic drug and report these adverse events to MedWatch, we made a telephone call to each patient's pharmacy to collect information on dispensing dates and the generic formulations' manufacturers...
May 2011: Annals of Pharmacotherapy
P N Vlasov, V A Karlov, E G Komel'kova
One hundred and forty-three patients with partial epilepsy, aged 16-73 years, were treated with levetiracetam (keppra) during 3 years. Group 1 included 71 patients who received the drug as the first monotherapy, group 2 consisted of 72 patients who received levetiracetam as the second or the third monotherapy due to the insufficient efficacy/poor tolerability of the initial therapy with AED. Percent of retention of patients on the drug is an integral index of the total efficacy of treatment (remission or >50% decrease of seizure frequency) minus the percent of drug withdrawal due to different reasons for a certain period...
2010: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
Yutaka Ishii, Takeshi Tanaka
No abstract text is available yet for this article.
February 2011: Nihon Yakurigaku Zasshi. Folia Pharmacologica Japonica
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