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https://www.readbyqxmd.com/read/28213422/phenobarbital-a-beneficial-eight-hourly-dosing-option
#1
Annette Wessmann
No abstract text is available yet for this article.
February 18, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28190495/phenobarbital-or-potassium-bromide-as-an-add-on-antiepileptic-drug-for-the-management-of-canine-idiopathic-epilepsy-refractory-to-imepitoin
#2
E Royaux, L Van Ham, B J G Broeckx, I Van Soens, I Gielen, D Deforce, S F M Bhatti
Imepitoin has recently been approved in Europe for the management of dogs with idiopathic epilepsy. Currently, there is no evidence-based information available on the efficacy of antiepileptic drugs used as additions to the therapeutic regimen in dogs with idiopathic epilepsy that are not well controlled with imepitoin. The goal of this study was to evaluate the efficacy of phenobarbital or potassium bromide (KBr) as add-on antiepileptic drugs for controlling dogs refractory to a maximum dose of imepitoin (30 mg/kg twice daily)...
February 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28188055/the-emergency-medicine-management-of-severe-alcohol-withdrawal
#3
Drew Long, Brit Long, Alex Koyfman
INTRODUCTION: Alcohol use is widespread, and withdrawal symptoms are common after decreased alcohol intake. Severe alcohol withdrawal may manifest with delirium tremens, and new therapies may assist in management of this life-threatening condition. OBJECTIVE: To provide an evidence-based review of the emergency medicine management of alcohol withdrawal and delirium tremens. DISCUSSION: The underlying pathophysiology of alcohol withdrawal syndrome (AWS) is central nervous system hyperexcitation...
February 4, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28186869/sedative-hypnotic-drug-withdrawal-syndrome-recognition-and-treatment
#4
Cynthia Santos, Ruben E Olmedo
Sedative-hypnotic drugs include gamma-Aminobutyric acid (GABA)ergic agents such as benzodiazepines, barbiturates, gamma-Hydroxybutyric acid [GHB], gamma-Butyrolactone [GBL], baclofen, and ethanol. Chronic use of these substances can cause tolerance, and abrupt cessation or a reduction in the quantity of the drug can precipitate a life-threatening withdrawal syndrome. Benzodiazepines, phenobarbital, propofol, and other GABA agonists or analogues can effectively control symptoms of withdrawal from GABAergic agents...
March 2017: Emergency Medicine Practice
https://www.readbyqxmd.com/read/28177134/the-influence-of-combination-use-of-cyp450-inducers-on-the-pharmacokinetics-of-voriconazole-a-systematic-review
#5
REVIEW
T-Y Li, W Liu, K Chen, S-Y Liang, F Liu
WHAT IS KNOWN AND OBJECTIVES: Voriconazole is a triazole antifungal agent and is extensively metabolized via cytochrome P450 (CYP450); therefore, special precautions need to be taken when co-administered with a known CYP450 inducer, which may lead to treatment failure. The influence of some CYP450 inducers on the pharmacokinetics of voriconazole has been described in previous studies, but a systematic review was lacking. In this study, we carried out a systematic review to assess the influence of CYP450 inducers on the pharmacokinetic (PK) parameters of voriconazole...
February 8, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28162233/synthesis-molecular-modelling-and-preliminary-anticonvulsant-activity-evaluation-of-novel-naphthalen-2-yl-acetate-and-1-6-dithia-4-9-diazaspiro-4-4-nonane-3-8-dione-derivatives
#6
Nagat Ghareb, Mohamed M Abdel Daim, Norhan M El-Sayed, Mohamed Saleh Elgawish
The synthesis, pharmacological evaluation and molecular modelling study of novel naphthalen-2-yl acetate and 1,6-dithia-4,9-diazaspiro [4.4]nonane-3,8-dione derivatives as potential anticonvulsant agents are described. The newly synthesized compounds were characterized by both analytical and spectral data. Alkylation of 1H-imidazole or substituted piperazine with 1-(2-naphthyl)-2-bromoethanone (2) gave naphthalen-2-yl 2-(1H-imidazol-1-yl) acetate (3) and naphthalen-2-yl 2-(substituted piperazin-1-yl) acetate (4-8)...
January 25, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/28123338/single-pass-albumin-dialysis-in-a-child-aged-six-months-with-phenobarbital-poisoning
#7
Hasan Serdar Kıhtır, Hamdi Murat Yıldırım, Osman Yeşilbaş, Burcu Bursal Duramaz, Esra Şevketoğlu
A girl aged six months was hospitalized because of resistant seizures and was discharged with phenobarbital and carbamazepine therapy. She was admitted to a state hospital with symptoms of inability to waken and difficulty in breathing. It was learned that phenobarbital had been used incorrectly and the patient was sent to our pediatric intensive care unit because of severe phenobarbital overdose. The decision was taken for hemodialysis. Single-pass albumin dialysis was planned because phenobarbital can bind to high levels of plasma protein...
December 2016: Türk Pediatri Arşivi
https://www.readbyqxmd.com/read/28118828/clinical-evaluation-of-a-combination-therapy-of-imepitoin-with-phenobarbital-in-dogs-with-refractory-idiopathic-epilepsy
#8
Jasmin Neßler, Chris Rundfeldt, Wolfgang Löscher, Draginja Kostic, Thomas Keefe, Andrea Tipold
BACKGROUND: Imepitoin was tested as a combination treatment with phenobarbital in an open-label mono-centre cohort study in dogs with drug-resistant epilepsy. Diagnosis of idiopathic epilepsy was based on clinical findings, magnetic resonance imaging and cerebrospinal fluid analysis. Three cohorts were treated. In cohort A, dogs not responding to phenobarbital with or without established add-on treatment of potassium bromide or levetiracetam were treated add-on with imepitoin, starting at 10 mg/kg BID, with titration allowed to 30 mg/kg BID...
January 25, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28118749/warfarin-interaction-with-hepatic-cytochrome-p-450-enzyme-inducing-anticonvulsants
#9
Nathan P Clark, Kim Hoang, Thomas Delate, John R Horn, Daniel M Witt
BACKGROUND: Initiation of cytochrome P-450 (CYP)-inducing anticonvulsant medications during warfarin therapy may decrease anticoagulant effect and necessitate frequent warfarin dose adjustments to maintain therapeutic response measured by the international normalized ratio (INR). Clinical information regarding interactions between warfarin and these medications is limited. This study investigated warfarin dose and INR response following CYP-inducing anticonvulsant initiation among chronic warfarin users...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/28110334/muscone-induces-cyp1a2-and-cyp3a4-enzyme-expression-in-l02-human-liver-cells-and-cyp1a2-and-cyp3a11-enzyme-expression-in-kunming-mice
#10
Sha Liu, Yujie Cheng, Menglin Rao, Mi Tang, Zhi Dong
AIM: To examine the effect of synthetic muscone on the expression of CYP1A2 and CYP3A4 enzymes in human liver L02 cells and in the liver tissue of Kunming mice. METHODS: The L02 hepatic cell line was used to study the effect of low (10-4 μmol/L), middle (10-3 μmol/L), and high concentrations (10-2 μmol/L) of muscone on the expression of CYP1A2 and CYP3A4 enzymes. In addition, the cytochrome P450 (CYP) expression was investigated in Kunming mice after the administration of 10 mg/kg (low), 50 mg/kg (middle), and 100 mg/kg (high) dose of muscone for 6 days...
January 21, 2017: Pharmacology
https://www.readbyqxmd.com/read/28109826/biological-relevance-of-effects-following-chronic-administration-of-octamethylcyclotetrasiloxane-d4-in-fischer-344-rats
#11
Wolfgang Dekant, Anthony R Scialli, Kathy Plotzke, James E Klaunig
Octamethylcyclotetrasiloxane (D4) is a cyclic siloxane primarily used as a monomer or intermediate in the production of silicone polymers resulting in potential exposure of workers, and potential low level inhalation or dermal exposure for consumers and the general public. Following a two-year inhalation toxicity study with D4 in rats, increases in uterine endometrial cystic hyperplasia and adenomas were observed at the highest concentration of D4 administered (700ppm). No other neoplasms were increased with D4 treatment...
January 18, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28101765/tolerability-and-safety-of-commonly-used-antiepileptic-drugs-in-adolescents-and-adults-a-clinician-s-overview
#12
REVIEW
Martin J Brodie
This paper discusses the issues surrounding the tolerability and safety of the commonly used antiepileptic drugs (AEDs) in adolescents and adults. The content includes dose-related adverse effects, idiosyncratic reactions, behavioural and psychiatric comorbidities, chronic problems, enzyme induction and teratogenesis. Twenty-one AEDs are discussed in chronological order of their introduction into the UK, starting with phenobarbital and ending with brivaracetam. Wherever possible, advice is given on anticipating, recognising and managing these issues and thereby improving the lives of people with epilepsy, most of whom will need to take one or more of these agents for life...
January 18, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28100328/-repeated-yellowing-of-the-skin-and-sclera-for-2-years
#13
Xiao-Ye Yuan, Xiang-Ling He, Hui Zou, Run-Ying Zou
A two-year-old girl was admitted due to repeated yellowing of the skin and sclera for 2 years and had no other specific symptoms or signs. The use of phenobarbital could relieve the symptoms of jaundice. Multiple examinations showed increased indirect bilirubin levels, and the results of aminotransferases and liver imaging were normal. There was no evidence of hemolysis. The analysis of UGT1A1 gene in her family found that this child had double homozygous mutation of c.211G>A(G71R) and c.1456T>G(Y486D), which had been reported as the pathogenic mutation for Gilbert syndrome...
January 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28062844/phenobarbital-administration-every-eight-hours-improvement-of-seizure-management-in-idiopathic-epileptic-dogs-with-decreased-phenobarbital-elimination-half-life
#14
F Stabile, C R Barnett, L De Risio
Estimated prevalence of canine idiopathic epilepsy is 0.6 per cent in the first-opinion canine population in the UK. Phenobarbital monotherapy has been reported to reduce/eradicate seizure activity in 60-93 per cent of idiopathic epileptic dogs (IEDs). The objective of this study was to evaluate safety and efficacy of the administration of phenobarbital orally every eight hours in IEDs with phenobarbital elimination half-life less than 20 hours. Medical records of 10 IEDs in which steady state trough serum phenobarbital levels were within the reference range and phenobarbital elimination half-life had become less than 20 hours following prolonged administration every 12 hours were reviewed...
January 6, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28062542/phenobarbital-treatment-at-a-neonatal-age-results-in-decreased-efficacy-of-omeprazole-in-adult-mice
#15
Yun-Chen Tien, Stephanie C Piekos, Chad Pope, Xiao-Bo Zhong
Drug-drug interactions (DDIs) occur when the action of one drug interferes with or alters the activity of another drug taken concomitantly. This can lead to decreased drug efficacy or increased toxicity. Because of DDIs, physicians in the clinical practice attempt to avoid potential interactions when multiple drugs are co-administrated, however there is still a large knowledge gap in understanding how drugs taken in the past can contribute to DDIs in the future. The goal of this study is to investigate the consequence of neonatal drug exposure on efficacy of other drugs administered to adult life...
January 6, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/28062541/evaluation-of-a-novel-renewable-hepatic-cell-model-for-prediction-of-clinical-cyp3a4-induction-using-a-correlation-based-ris-approach
#16
Rongjun Zuo, Feng Li, Sweta Parikh, Li Cao, Kirsten L Cooper, Yulong Hong, Jin Liu, Ronald A Faris, Daochuan Li, Hongbing Wang
Metabolism enzyme induction-mediated drug-drug interactions need to be carefully characterized in vitro for drug candidates in order to predict in vivo outcomes of safety risk and therapeutic efficiency. Currently, both the FDA and EMA recommend using primary human hepatocytes as the "Gold Standard" in vitro test system for studying the induction potential of candidate drugs on cytochrome P450 (CYP), CYP3A4, CYP1A2, and CYP2B6. However, primary human hepatocytes are known to bear inherent limitations such as limited supply and large lot-to-lot variations which result in an experimental burden to qualify new lots...
January 6, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/28058446/hepatotoxic-effects-of-cyproconazole-and-prochloraz-in-wild-type-and-hcar-hpxr-mice
#17
Philip Marx-Stoelting, Katrin Ganzenberg, Constanze Knebel, Flavia Schmidt, Svenja Rieke, Helen Hammer, Felix Schmidt, Oliver Pötz, Michael Schwarz, Albert Braeuning
The agricultural fungicides cyproconazole and prochloraz exhibit hepatotoxicity in rodent studies and are tumorigenic following chronic exposure. Both substances are suspected to act via a CAR (constitutive androstane receptor)/PXR (pregnane-X-receptor)-dependent mechanism. Human relevance of these findings is under debate. A 28-day toxicity study was conducted in mice with humanized CAR and PXR (hCAR/hPXR) with two dose levels (50 or 500 ppm) of both substances, using the model CAR activator phenobarbital as a reference...
January 6, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28042096/different-response-to-antiepileptic-drugs-according-to-the-type-of-epileptic-events-in-a-neonatal-ischemia-reperfusion-model
#18
Luc Morin, Julie Enderlin, Pierre-Louis Leger, Gaëtan Perrotte, Philippe Bonnin, Nina Dupuis, Olivier Baud, Christiane Charriaut-Marlangue, Stéphane Auvin
Perinatal arterial stroke is the most frequent form of cerebral infarction in children. Neonatal seizures are the most frequent symptom during the neonatal period. The current management of perinatal stroke is based on supportive care. It is currently unknown if treatment of the seizures modifies the outcome, and no clinical studies have focused on seizures during neonatal stroke. We studied the effect of phenobarbital and levetiracetam on an ischemic-reperfusion stroke model in P7 rats using prolonged electroencephalographic recordings and a histologic analysis of the brain (24h after injury)...
December 30, 2016: Neurobiology of Disease
https://www.readbyqxmd.com/read/28018155/neonatal-toxicity-from-escitalopram-use-in-utero-a-case-report
#19
Jessica Degiacomo, Sherry Luedtke
Selective serotonin reuptake inhibitor (SSRI) exposure during pregnancy can result in symptoms of serotonin syndrome or serotonin withdrawal. In contrast to other SSRIs, reports of serotonin behavioral syndrome following in utero exposure to escitalopram and citalopram are limited. We describe a case of suspected toxicity following in utero exposure to 20 mg escitalopram throughout pregnancy. The infant was transferred to our neonatal intensive unit at 9 hours of life for further evaluation of lethargy, weak cry, bradycardia, and non-reactive pupils...
November 2016: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/28017579/seizures-caused-by-brain-tumors-in-children
#20
Iván Sánchez Fernández, Tobias Loddenkemper
PURPOSE: To review the epidemiology, clinical features, and treatment of seizures secondary to pediatric brain tumors. METHOD: Literature review. RESULTS: Pediatric brain tumors are the most common solid pediatric tumor and the most common cause of death in pediatric cancer. Seizures are one of the most common symptoms of pediatric brain tumors. Factors associated with increased risk of seizures include supratentorial location, gray matter involvement, low-grade, and certain histological features-especially dysembryoplastic neuroepithelial tumor, ganglioglioma, and oligodendroglioma...
December 7, 2016: Seizure: the Journal of the British Epilepsy Association
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