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Omeprazole

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https://www.readbyqxmd.com/read/28435366/comparative-evaluation-of-antimicrobial-efficacy-of-triple-antibiotic-paste-calcium-hydroxide-and-a-proton-pump-inhibitor-against-resistant-root-canal-pathogens
#1
Shibha Mehta, Promila Verma, Aseem Prakash Tikku, Anil Chandra, Rhythm Bains, Gopa Banerjee
OBJECTIVE: The objective of this study is to compare the antimicrobial efficacy of triple antibiotic paste (TAP) and a proton pump inhibitor (PPI) (omeprazole) in combination with calcium hydroxide (CH) against Enterococcus faecalis and Candida albicans. MATERIALS AND METHODS: E. faecalis and C. albicans were subcultured and inoculated at 37° overnight and were treated with different dilutions of TAP, 25 μg/ml (Group 1), CH (Group 2, control), CH 16 mg/ml + omeprazole 2 mg/ml (Group 3a) (CH 16 mg/ml + omeprazole 4 mg)/ml (Group 3b) for 24, 48, and 72 h in sterile uncoated 96-well microtiter plates...
January 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28432741/pharmacokinetic-and-pharmacodynamic-effects-of-two-omeprazole-formulations-on-stomach-ph-and-gastric-ulcer-scores
#2
S Raidal, F M Andrews, S G Nielsen, G Trope
REASONS FOR PERFORMING THE STUDY: Limited data are available on the relative pharmacokinetics and pharmacodynamics of different omeprazole formulations. OBJECTIVES: To compare pharmacokinetic and pharmacodynamic effects of a novel omeprazole formulation against a currently registered product. STUDY DESIGN: Masked two period, two treatment crossover. METHODS: Twelve clinically healthy horses were studied over two 6-day treatment periods...
April 22, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28431202/pharmacological-interventions-for-acute-pancreatitis
#3
REVIEW
Elisabetta Moggia, Rahul Koti, Ajay P Belgaumkar, Federico Fazio, Stephen P Pereira, Brian R Davidson, Kurinchi Selvan Gurusamy
BACKGROUND: In people with acute pancreatitis, it is unclear what the role should be for medical treatment as an addition to supportive care such as fluid and electrolyte balance and organ support in people with organ failure. OBJECTIVES: To assess the effects of different pharmacological interventions in people with acute pancreatitis. SEARCH METHODS: We searched the Cochrane Central Register of Controlled Trials (CENTRAL, 2016, Issue 9), MEDLINE, Embase, Science Citation Index Expanded, and trial registers to October 2016 to identify randomised controlled trials (RCTs)...
April 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28426901/a-case-of-toxic-epidermal-necrolysis-and-vanishing-bile-duct-syndrome-requiring-liver-transplantation
#4
Sophie Momen, Carol Dangiosse, Emma Wedgeworth, Sarah Walsh, Daniel Creamer
A 52-year-old woman presented with a five-day history of headache, fevers and a diffuse, macular erythematous rash. Ten days prior she received cephalexin for a urinary-tract infection. She had a history of gastro-oesophageal reflux disorder and took omeprazole. This article is protected by copyright. All rights reserved.
April 20, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28425352/overdose-in-young-children-treated-with-anti-reflux-medications-poisons-enquiry-evidence-of-excess-10-fold-dosing-errors-with-ranitidine
#5
C Crawford, M Anderson, G Cooper, G Jackson, J Thompson, A Vale, Shl Thomas, M Eddleston, D N Bateman
BACKGROUND: Accidental drug overdose is a common problem in young children. We examined the influence of formulation and dose in enquiries for different gastro-oesophageal reflux disease treatments in children under 5 years to the UK's National Poisons Information Service. METHODS: Overdose characteristics with ranitidine, omeprazole or domperidone were compared with those of metoclopramide and the H-1 antagonist chlorphenamine, for the period 1 July 2007 to 30 June 2015...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/28425145/prevalence-of-gastroesophageal-reflux-in-cats-during-anesthesia-and-effect-of-omeprazole-on-gastric-ph
#6
R S Garcia, P C Belafsky, A Della Maggiore, J M Osborn, B H Pypendop, T Pierce, V J Walker, A Fulton, S L Marks
BACKGROUND: Gastroesophageal reflux (GER) is poorly characterized in anesthetized cats, but can cause aspiration pneumonia, esophagitis, and esophageal stricture formation. OBJECTIVE: To determine whether pre-anesthetic orally administered omeprazole increases gastric and esophageal pH and increases serum gastrin concentrations in anesthetized cats, and to determine the prevalence of GER using combined multichannel impedance and pH monitoring. ANIMALS: Twenty-seven healthy cats undergoing elective dental procedures...
April 19, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28417439/clinical-pharmacokinetics-of-sacubitril-valsartan-lcz696-a-novel-angiotensin-receptor-neprilysin-inhibitor
#7
REVIEW
Surya Ayalasomayajula, Thomas Langenickel, Parasar Pal, Sreedevi Boggarapu, Gangadhar Sunkara
Sacubitril/valsartan (LCZ696) is indicated for the treatment of heart failure with reduced ejection fraction. Absorption of sacubitril/valsartan and conversion of sacubitril (prodrug) to sacubitrilat (neprilysin inhibitor) was rapid with maximum plasma concentrations of sacubitril, sacubitrilat, and valsartan (angiotensin receptor blocker) reaching within 0.5, 1.5-2.0, and 2.0-3.0 h, respectively. With a two-fold increase in dose, an increase in the area under the plasma concentration-time curve was proportional for sacubitril, ~1...
April 17, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28408803/drug-drug-interaction-of-microdose-and-regular-dose-omeprazole-with-a-cyp2c19-inhibitor-and-inducer
#8
Gab-Jin Park, Soo Hyeon Bae, Wan-Su Park, Seunghoon Han, Min-Ho Park, Seok-Ho Shin, Young G Shin, Dong-Seok Yim
PURPOSE: A microdose drug-drug interaction (DDI) study may be a valuable tool for anticipating drug interaction at therapeutic doses. This study aimed to compare the magnitude of DDIs at microdoses and regular doses to explore the applicability of a microdose DDI study. PATIENTS AND METHODS: Six healthy male volunteer subjects were enrolled into each DDI study of omeprazole (victim) and known perpetrators: fluconazole (inhibitor) and rifampin (inducer). For both studies, the microdose (100 μg, cold compound) and the regular dose (20 mg) of omeprazole were given at days 0 and 1, respectively...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28408799/the-antiulcer-effect-of-cibotium-barometz-leaves-in-rats-with-experimentally-induced-acute-gastric-ulcer
#9
Nahla Saeed Al-Wajeeh, Maryam Hajrezaie, Nawal Al-Henhena, Sareh Kamran, Elham Bagheri, Maryam Zahedifard, Kamelia Saremi, Suzita Mohd Noor, Hapipah Mohd Ali, Mahmood Ameen Abdulla
Cibotium barometz is a pharmaceutical plant customarily used in traditional medicine in Malaysia for the treatment of different diseases, such as gastric ulcer. The gastroprotective effect of C. barometz leaves against ethanol-induced gastric hemorrhagic abrasions in Sprague Dawley rats has been evaluated in terms of medicinal properties. Seven groups of rats (normal control and ulcerated control groups, omeprazole 20 mg/kg, 62.5, 125, 250, and 500 mg/kg of C. barometz correspondingly) were used in antiulcer experiment and pretreated with 10% Tween 20...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28407418/pharmacokinetics-and-acid-suppressant-efficacy-of-esomeprazole-after-intravenous-oral-and-subcutaneous-administration-to-healthy-beagle-dogs
#10
J-H Hwang, J-W Jeong, G-H Song, T-S Koo, K-W Seo
BACKGROUND: Esomeprazole is an S-enantiomer of omeprazole that has favorable pharmacokinetics and efficacious acid suppressant properties in humans. However, the pharmacokinetics and effects on intragastric pH of esomeprazole in dogs have not been reported. OBJECTIVE: To determine the pharmacokinetics of esomeprazole administered via various routes (PK study) and to investigate the effect of esomeprazole on intragastric pH with a Bravo pH monitoring system (PD study)...
April 13, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28407007/polaprezinc-combined-with-clarithromycin-based-triple-therapy-for-helicobacter-pylori-associated-gastritis-a-prospective-multicenter-randomized-clinical-trial
#11
RANDOMIZED CONTROLLED TRIAL
Bei Tan, Han-Qing Luo, Hong Xu, Nong-Hua Lv, Rui-Hua Shi, He-Sheng Luo, Jian-Sheng Li, Jian-Lin Ren, Yi-You Zou, Yan-Qing Li, Feng Ji, Jing-Yuan Fang, Jia-Ming Qian
The efficacy and safety of polaprezinc combined with triple therapy was compared with triple therapy alone in the eradication of Helicobacter pylori. A randomized, parallel-group, open-label, controlled, prospective multicenter study was conducted in 11 cities in China. Treatment-naive patients with H. pylori-associated gastritis were randomly assigned to one of three arms for a 14-day treatment: Arm A triple therapy (omeprazole 20 mg, amoxicillin 1 g, and clarithromycin 500 mg, each twice daily) plus polaprezinc 75 mg twice daily; Arm B triple therapy plus polaprezinc 150 mg twice daily, or Arm C triple therapy alone...
2017: PloS One
https://www.readbyqxmd.com/read/28403034/national-study-of-off-label-proton-pump-inhibitor-use-among-new-zealand-infants-in-the-first-year-of-life-2005-2012
#12
Mei-Ling Blank, Lianne Parkin
OBJECTIVE: Off-label prescribing of proton pump inhibitors (PPIs) to infants to treat symptoms attributed to gastroesophageal reflux disease (GERD) is widely reported, despite evidence that PPIs are no more effective than placebo in relieving those symptoms. To initiate discussion about appropriate prescribing of these drugs for infants, we describe the characteristics of PPI use among infants in New Zealand. METHODS: In this population-based study we used routinely collected dispensing data to identify all children born between 2005 and 2012 who were dispensed a government-subsidized PPI (omeprazole, lansoprazole, pantoprazole) before their first birthday...
April 11, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28400261/involvement-of-astrocytic-cyp1a1-isoform-in-the-metabolism-and-toxicity-of-the-alkaloid-pyrrolizidine-monocrotaline
#13
Ravena P Nascimento, Joana L Oliveira, José Leilton C Carvalho, William A Santos, Thyago Rubens C Pires, Maria José M Batatinha, Ramon S El-Bachá, Victor Diógenes A Silva, Silvia L Costa
Monocrotaline (MCT) and its pyrrole derivative, dehydromonocrotaline (DHMC), interact with molecular targets in cells of the central nervous system. DHMC presents higher toxicity than MCT indicating that its metabolism of MCT is a critical step of this alkaloid toxicity. This study sought to elucidate the metabolism and the toxicity of MCT in C6 astrocyte cell line and primary cultures of rat astrocytes by investigating metabolic enzymatic mechanisms of the cytochrome P450 (CYP) system and conjugation with glutathione...
April 8, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28397996/preliminary-investigations-into-a-novel-long-acting-injectable-intra-muscular-formulation-of-omeprazole-in-the-horse
#14
B W Sykes, K Kathawala, Y Song, S Garg, S W Page, C Underwood, P C Mills
REASONS FOR PERFORMING STUDY: Pilot investigations have suggested that a novel, long-acting, injectable, intra-muscular formulation of omeprazole (LA-OMEP) can induce acid suppression for up to 7 days following a single injection. OBJECTIVES: To investigate the pharmacodynamics and assess the clinical efficacy of the LA-OMEP formulation. STUDY DESIGN: Part A) A pharmacodynamic study; Part B) A pilot clinical trial. METHODS: Part A) Six adult, Thoroughbred horses with percutaneous gastrotomy tubes were used...
April 11, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28397104/omeprazole-absorption-and-fasting-gastrinemia-after-roux-en-y-gastric-bypass
#15
Renata V A Collares-Pelizaro, José S Santos, Carla B Nonino, Cristiane M Gaitani, Wilson Salgado
PURPOSE: Roux-en-Y gastric bypass (RYGB) is one of the bariatric surgeries most frequently performed worldwide. Since this operation may predispose to the formation of peptic ulcer of the gastrojejunal anastomosis, the use of proton pump inhibitors (PPI) is recommended during the first postoperative year. However, so far, there is no detailed knowledge about the absorption of this medication during the immediate postoperative period and consequently about its effectiveness in blocking acid secretion...
April 10, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28392699/comparison-of-prophylactic-effect-of-ugib-and-effects-on-platelet-function-between-ppis-and-h2ras-combined-with-dapt-systematic-review-and-meta-analysis
#16
Zhan-Miao Yi, Ting-Ting Qiu, Yuan Zhang, Zhi-Yan Liu, Suo-Di Zhai
OBJECTIVE: We compared prophylactic effects of proton pump inhibitors (PPIs) and histamine-2 receptor antagonists (H2RAs) on upper gastrointestinal bleeding (UGIB) associated with dual antiplatelet therapy (DAPT) and explored this influence on platelet function. METHODS: Randomized controlled trials and cohort studies comparing PPIs with H2RAs in adults receiving DAPT were collected from PubMed, EMBASE and Cochrane databases. Dichotomous data were pooled to obtain risk ratios (RRs) for UGIB, major adverse cardiovascular events (MACEs), poor responders to clopidogrel and rehospitalization, and continuous data were pooled to obtain mean differences (MDs) for P2Y12 reaction units (PRUs), with 95% confidence intervals (CIs)...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28391407/influence-of-genetic-and-non-genetic-factors-on-phenytoin-induced-severe-cutaneous-adverse-drug-reactions
#17
Kittika Yampayon, Chonlaphat Sukasem, Chanin Limwongse, Yotin Chinvarun, Therdpong Tempark, Ticha Rerkpattanapipat, Pornpimol Kijsanayotin
PURPOSE: The purpose of this study was to investigate the association of genetic factors including variants in HLA-B and CYP2C genes and non-genetic factors with phenotype-specific phenytoin (PHT)-induced severe cutaneous adverse reactions (SCARs) in Thai patients. METHODS: Thirty-six PHT-induced SCAR cases (15 Stevens-Johnson syndrome (SJS) and 21 drug rash with eosinophilia and systemic symptoms (DRESS)/drug hypersensitivity syndrome (DHS)) and 100 PHT-tolerant controls were studied...
April 8, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28386250/means-to-facilitate-the-overcoming-of-gastric-juice-barrier-by-a-therapeutic-staphylococcal-bacteriophage-a5-80
#18
Ryszard Międzybrodzki, Marlena Kłak, Ewa Jończyk-Matysiak, Barbara Bubak, Anna Wójcik, Marta Kaszowska, Beata Weber-Dąbrowska, Małgorzata Łobocka, Andrzej Górski
In this article we compare the efficacy of different pharmacological agents (ranitidine, and omeprazole) to support phage transit from stomach to distal portions of the gastrointestinal tract in rats. We show that a temporal modification of environment in the animal stomach may protect Twort-like therapeutic antistaphylococcal phage A5/80 (from bacteriophage collection of the Hirszfeld Institute of Immunology and Experimental Therapy PAS in Wroclaw, Poland) from the inactivation by gastric juice effectively enough to enable a significant fraction of orally administered A5/80 to pass to the intestine...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28385615/identification-and-characterisation-of-a-salt-form-of-danirixin-with-reduced-pharmacokinetic-variability-in-patient-populations
#19
Jackie C Bloomer, Claire Ambery, Bruce E Miller, Paul Connolly, Helen Garden, Nick Henley, Neil Hodnett, Sarah Keel, James L Kreindler, Richard S Lloyd, Wayne Matthews, John Yonchuk, Aili L Lazaar
The natural variability of gastric pH or gastric acid reducing medications can result in lower and more variable clinical pharmacokinetics for basic compounds in patient populations. Progressing alternative salt forms with improved solubility and dissolution properties can minimise this concern. This manuscript outlines a nonclinical approach comprising multiple biopharmaceutical, in vitro and physiologically based pharmacokinetic model (PBPK) modelling studies to enable selection of an alternative salt form for danirixin (DNX, GSK1325756), a pharmaceutical agent being developed for chronic obstructive pulmonary disease (COPD)...
April 3, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28378544/effects-of-cyp2c19-genetic-polymorphisms-on-pk-pd-responses-of-omeprazole-in-korean-healthy-volunteers
#20
Sunny Park, Yang Jin Hyun, Yu Ran Kim, Ju Hyun Lee, Sunae Ryu, Jeong Mi Kim, Woo Yong Oh, Han Sung Na, Jong Gu Lee, Doo Won Seo, In Yeong Hwang, Zewon Park, In Jin Jang, Jaeseong Oh, Seung Eun Choi
The aim of this study was to examine the effects of CYP2C19*2 and *3 genetic polymorphisms on omeprazole pharmacokinetic (PK) and pharmacodynamic (PD) responses. Twenty-four healthy Korean volunteers were enrolled and given 20 mg omeprazole orally once daily for 8 days. The genotypes of CYP2C19 single nucleotide polymorphisms (SNPs) (*2, *3, and *17) were screened. The plasma concentrations of omeprazole, omeprazole sulfone, and 5-hydroxy (5-OH) omeprazole were determined by liquid chromatography with tandem mass spectrometry (LC-MS/MS)...
May 2017: Journal of Korean Medical Science
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