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Famotidine

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https://www.readbyqxmd.com/read/28738449/pbpk-modeling-of-the-effect-of-reduced-kidney-function-on-the-pharmacokinetics-of-drugs-excreted-renally-by-organic-anion-transporters
#1
C-H Hsueh, V Hsu, P Zhao, L Zhang, K M Giacomini, S-M Huang
Altered pharmacokinetics (PK) in subjects with chronic kidney disease (CKD) may lead to dosing adjustment of certain drugs in subjects with CKD. It can be valuable to quantitatively predict PK in CKD for the management of drug dosing in these subjects. We developed physiologically based pharmacokinetic (PBPK) models of seven renally eliminated drugs: adefovir, avibactam, entecavir, famotidine, ganciclovir, oseltamivir carboxylate, and sitagliptin. These drugs are all substrates of renal organic anion transporters (OATs)...
July 24, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28699491/a-case-of-pantoprazole-anaphylaxis-with-cross-reactivity-to-all-proton-pump-inhibitors-finding-a-safe-alternative
#2
Özlem Türedi, Zeynep Çelebi Sözener, Reşat Kendirlinan, Sevim Bavbek
BACKGROUND: Hypersensitivity reactions due to Proton pump inhibitors (PPIs ) are rare, and further anaphylaxis to a PPI with cross-reactivity to all commercially available PPIs is very rare Objective: To present a case of anaphylaxis to pantoprazole with cross-reactivity to all commercially available PPIs Method: Skin prick tests (SPTs), intradermal tests (IDTs) and oral provocation tests (OPTs) were performed with available PPIs according to the method described in previous studies. RESULTS: All tested PPIs except lansoprazole were positive on skin tests either SPT or IDT...
July 11, 2017: Current Drug Safety
https://www.readbyqxmd.com/read/28690192/suppression-of-osteogenic-differentiation-in-mesenchymal-stem-cells-from-patients-with-ossification-of-the-posterior-longitudinal-ligament-by-a-histamine-2-receptor-antagonist
#3
Xizhe Liu, Gentaro Kumagai, Kanichiro Wada, Toshihiro Tanaka, Taku Fujita, Ayako Sasaki, Ken-Ichi Furukawa, Yasuyuki Ishibashi
Mesenchymal stem cells (MSCs) in ossification of the posterior longitudinal ligament (OPLL) patients have a high propensity toward osteogenesis. Histamine receptor H2 (H2R) antagonists (H2 blockers) like famotidine decrease ossification in patients, by an unclear mechanism. To confirm that MSCs express H2R and to clarify how H2 blockers suppress osteogenic differentiation, we used spinal-ligament MSCs from patients with OPLL or with cervical spondylotic myelopathy (CSM) (control). The MSCs were treated with 10, 30, or 100nM famotidine for 7 or 21 days...
July 8, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28625018/no-pharmacokinetic-interaction-between-the-hepatitis-c-virus-inhibitors-elbasvir-grazoprevir-and-famotidine-or-pantoprazole
#4
H-P Feng, P Vaddady, Z Guo, F Liu, D Panebianco, V Levine, L Caro, J R Butterton, M Iwamoto, W W Yeh
Use of agents to suppress gastric acid secretion is common among patients with hepatitis C virus (HCV) infection. The aims of this open-label, three-period, fixed-sequence study were to evaluate the effect of famotidine and pantoprazole on the pharmacokinetics and safety of elbasvir/grazoprevir fixed-dose combination (FDC) in 16 healthy subjects. Elbasvir and grazoprevir each exhibited similar pharmacokinetics following single-dose administration of elbasvir/grazoprevir with or without famotidine or pantoprazole...
June 17, 2017: Clinical and Translational Science
https://www.readbyqxmd.com/read/28618071/histamine-receptor-2-modifies-inkt-cell-activity-within-the-inflamed-lung
#5
R Ferstl, R Frei, W Barcik, E Schiavi, K Wanke, M Ziegler, N Rodriguez-Perez, D Groeger, P Konieczna, S Zeiter, D Nehrbass, R Lauener, C A Akdis, L O'Mahony
BACKGROUND: Histamine is a key immunoregulatory mediator and can dampen proinflammatory responses via activation of histamine receptor 2 (H2 R). The aim of this study was to determine the role of H2 R in modulating lung inflammatory responses. METHODS: H2 R was blocked using famotidine or activated using dimaprit in both the ovalbumin (OVA) and house dust mite extract (HDM) murine models of respiratory inflammation. H2 R-deficient animals and CD1d/H2 R-deficient animals were utilized to examine the CD1d presentation of lipid antigens (αGalCer or OCH) to invariant natural killer T (iNKT) cells...
June 15, 2017: Allergy
https://www.readbyqxmd.com/read/28605740/a-randomized-double-blind-pilot-study-of-the-effect-of-famotidine-on-acotiamide-treatment-for-functional-dyspepsia
#6
Mariko Hojo, Akihito Nagahara, Daisuke Asaoka, Tsutomu Takeda, Kentaro Izumi, Kohei Matsumoto, Hiroya Ueyama, Yuji Shimada, Kenshi Matsumoto, Shuko Nojiri, Sumio Watanabe
BACKGROUND/AIMS: Acotiamide, a prokinetic drug, is used to treat functional dyspepsia (FD), especially postprandial distress syndrome (PDS). However, a treatment for FD patients with PDS and/or epigastric pain syndrome (EPS) has not been established. We investigated the efficacy of famotidine in combination with acotiamide for FD. METHODS: Fifty blindly randomized FD patients received placebo with acotiamide, or famotidine with acotiamide, for 4 weeks. Treatment efficacy was assessed by overall treatment effects (OTE), total, PDS and EPS symptom scores, and impairment of quality of life (QOL)...
June 13, 2017: Digestion
https://www.readbyqxmd.com/read/28580333/oral-administration-of-vitamin-c-cimetidine-and-famotidine-on-micronuclei-induced-by-low-dose-radiation-in-mouse-bone-marrow-cells
#7
A Naeeji, H Mozdarani, A Shabestani Monfared, F Faeghi, A A Ahmadi, M Gholami, R Behzadi, M R Momtaz
BACKGROUND: In many studies, chemicals and natural materials were tested to reduce the harmful effects of radiation. It is known that Famotidine and vitamin C reduce DNA damage. OBJECTIVE: The aim of this study was to evaluate the radioprotective effect of vitamin C, Cimetidine and Famotidine on gamma-radiation-induced damage on mouse bone marrow. METHODS: Six-to-seven week male NMRI mice (28 g ±3) were randomly divided into fourteen groups: control, 2Gy irradiation, six group drugs without irradition (Famotidine, Cimetidine, vitaminC, Fam-Cim, Fam-Vit, Cim-Vit), six groups received drugs and 2Gy radiation with a 60Co |γ|-ray source at room temperature 22 ± 2 °C...
June 2017: Journal of Biomedical Physics & Engineering
https://www.readbyqxmd.com/read/28532031/screening-of-process-variables-to-enhance-the-solubility-of-famotidine-with-2-hydroxypropyl-%C3%AE-cyclodextrin-pvp-k-30-by-using-plackett-burman-design-approach
#8
Umakant Verma, Jitendra B Naik, Jayesh S Patil, Sunil K Yadava
In the present work, inclusion complex of famotidine (FMT) was prepared with (2-HydroxyPropyl)-β-Cyclodextrin (HP-β-CyD) and polyvinylpyrrolidone K-30 (PVP K-30) by spray drying technique to enhance the solubility of famotidine. FMT is a potent histamine H2-receptor antagonist having low solubility as well as oral bioavailability. In order to enhance the solubility of FMT, a quality by design (QbD) approach has been used by employing Plackett-Burman design (PBD). With the application of PBD, seven independent process variables were investigated and optimized for maximum solubility...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28516414/optimized-mucoadhesive-coated-niosomes-as-a-sustained-oral-delivery-system-of-famotidine
#9
Al-Zahraa M Khalifa, Bazigha K Abdul Rasool
The objective of this study is to develop an oral formulation of famotidine niosomes coated with a mucoadhesive polymer, chitosan. Famotidine (FMT) has low oral bioavailability of 40-45% and short half-life between 2.5 to 4 h. Famotidine is classified as class IV in BCS because of its low aqueous solubility (0.1% w/v) and low permeability. Thus, FMT was loaded to the bioadhesive coated niosomes to improve its solubility, enhance its oral bioavailability, and sustain FMT release pattern. Different formulations were prepared by thin-film hydration method and characterized in terms of entrapment efficiency, morphological features, vesicle size, and zeta potential...
May 17, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28486578/development-of-a-validated-comparative-stability-indicating-assay-method-for-some-h2-receptor-antagonists
#10
Sameh Ahmed, Salwa R Elshaboury, Niveen A Mohamed, Shereen Farrag
A comparative force degradation high performance thin layer chromatography (HPTLC) method was developed and validated for some H2-receptor antagonists. The studied H2-receptor antagonists were ranitidine (RAN), nizatidine (NIZ) and famotidine (FAM). The degradation behaviors of the studied H2-receptor antagonists were studied under different stress conditions (hydrolytic, thermal and oxidative) conditions as well as storage conditions according to International Conference on Harmonization (ICH) recommendations...
May 9, 2017: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/28461706/possibilities-for-modifying-risk-factors-for-the-development-of-hospital-acquired-pneumonia-in-intensive-care-patients-results-of-a-retrospective-observational-study
#11
Radovan Uvizl, Milan Kolar, Tomas Herkel, Michaela Vobrova, Katerina Langova
BACKGROUND: Hospital-acquired pneumonia (HAP) development is affected by a range of risk factors. METHODS: A retrospective, observational study processing data on all consecutive intensive care patients older than 18 years of age between 1 January 2011 and 31 December 2015. The aim was to determine the incidence of potential risk factors and their impact on the development of HAP. RESULTS: A total of 2229 patients. The overall mortality was 24...
April 26, 2017: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/28456772/lafutidine-a-histamine-h2-receptor-antagonist-with-mucosal-protective-properties-attenuates-5-fluorouracil-induced-intestinal-mucositis-in-mice-through-activation-of-extrinsic-primary-afferent-neurons
#12
T Sano, D Utsumi, K Amagase, K Matsumoto, M Tominaga, K Higuchi, T Takeuchi, S Kato
Intestinal mucositis accompanied by severe diarrhea is one of the most common side effects during cancer chemotherapy. Lafutidine, a histamine H2 receptor antagonist with mucosal protective properties via sensory afferent neurons, is used for the treatment of upper gastrointestinal diseases. The present study investigated the effects of lafutidine on 5-fluorouracil (5-FU)-induced intestinal mucositis induced in mice. Male C57BL/6 wild-type (WT), sensory deafferented mice, and transient receptor potential vanilloid subfamily 1 knockout (TRPV1KO) mice were used...
February 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28443380/acute-hypersensitivity-reaction-to-crotalidae-polyvalent-immune-fab-crofab-as-initial-presentation-of-galactose-%C3%AE-1-3-galactose-%C3%AE-gal-allergy
#13
Justin Rizer, Kaitlin Brill, Nathan Charlton, Joshua King
Crotalidae polyvalent immune Fab antivenom (CroFab), commonly used for the treatment of clinically significant North American crotalinae envenomation, is generally well-tolerated. A novel form of anaphylaxis due to an IgE antibody response to the mammalian oligosaccharide galactose-α-1,3-galactose (α-gal) has been established following red-meat consumption as well as IV administration of cetuximab, which contain the α-gal epitope. We present a case of α-gal allergy discovered after acute hypersensitivity reaction to FabAV...
April 26, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28430398/impact-of-acid-reducing-agents-on-the-pharmacokinetics-of-palbociclib-a-weak-base-with-ph-dependent-solubility-with-different-food-intake-conditions
#14
Wan Sun, Karen J Klamerus, Lisa M Yuhas, Sylvester Pawlak, Anna Plotka, Melissa O'Gorman, Leonid Kirkovsky, Maha Kosa, Diane Wang
Palbociclib free base capsule is a weak base drug with highly pH-dependent solubility. In vitro and in vivo studies evaluated the impact of acid-reducing agents on exposure of palbociclib and determined whether the impact, if any, can be mitigated by food. A drug-drug interaction study (study 1) was conducted first under fasted conditions and showed that coadministration of multiple doses of the proton-pump inhibitor rabeprazole substantially reduced palbociclib mean area under the concentration-time curve from time 0 to infinity and maximum observed plasma concentration by 62% and 80%, respectively...
April 21, 2017: Clinical Pharmacology in Drug Development
https://www.readbyqxmd.com/read/28423916/pegfilgrastim-induced-bone-pain-a-review-on-incidence-risk-factors-and-evidence-based-management
#15
Donald C Moore, Annie E Pellegrino
OBJECTIVE: To review the incidence, risk factors, and management of pegfilgrastim-induced bone pain (PIBP). DATA SOURCES: PubMed was searched from 1980 to March 31, 2017, using the terms pegfilgrastim and bone pain. STUDY SELECTION AND DATA EXTRACTION: English-language, human studies and reviews assessing the incidence, risk factors, and management of PIBP were incorporated. DATA SYNTHESIS: A total of 3 randomized, prospective studies and 2 retrospective studies evaluated pharmacological management of PIBP...
April 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28367296/famotidine-induced-reversal-of-meperidine-related-serotonin-syndrome-a-case-report
#16
Soohyun Joe, Eunju Kim, Junyi Park, Dongwon Lee, Jongchul Son, Hyun Kim
Serotonin syndrome is an unexpected fatal adverse event related to serotonergic medication. This case report is the first report describing the possible treatment effect of famotidine on serotonin syndrome. Furthermore, this is the first case report of serotonin syndrome induced by meperidine alone in a patient with no previous history suggesting a susceptibility to serotonin syndrome. A 70-year-old male with no recent history of serotonergic drug use presented with severe serotonin syndrome following ureteroscopy, possibly due to postoperative meperidine administration...
April 2017: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/28199788/development-of-fluorescence-surrogates-to-predict-the-photochemical-transformation-of-pharmaceuticals-in-wastewater-effluents
#17
Shuwen Yan, Bo Yao, Lushi Lian, Xinchen Lu, Shane A Snyder, Rui Li, Weihua Song
The photochemical transformation of pharmaceutical and personal care products (PPCPs) in wastewater effluents is an emerging concern for environmental scientists. In the current study, the photodegradation of 29 PPCPs was examined in effluents under simulated solar irradiation. Direct photodegradation, triplet state effluent organic matter ((3)EfOM*)-mediated and hydroxyl radical (HO(•))-mediated degradation are three major pathways in the removal process. With the photodegradation of trace levels of PPCPs, the excitation-emission matrix (EEM) fluorescence intensities of the effluents were also gradually reduced...
March 7, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28153970/a-rare-case-of-famotidine-induced-delirium-in-a-peritoneal-dialysis-patient
#18
Gary C W Chan, K M Lee, Lorraine P Y Kwan, Maggie M Y Mok, Maggie K M Ma, Desmond Y H Yap, Sydney C W Tang
H2 receptor antagonists are commonly employed to manage gastro-esophageal reflux and peptic ulcer diseases with a very low incidence of side effects. Herein, we report an extremely rare incidence of famotidine-induced acute confusion in a patient with end-stage renal failure. We also discuss the pharmacokinetic properties of famotidine and its interplay with compromised renal function to result in neuropsychiatric manifestations, highlighting the importance of dosage ad ustment in individuals with renal insufficiency...
January 2017: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/28151040/design-of-peg-grafted-pla-nanoparticles-as-oral-permeability-enhancer-for-p-gp-substrate-drug-model-famotidine
#19
Mohamed Mokhtar, Patrick Gosselin, François Lacasse, Patrice Hildgen
Bioavailability of oral drugs can be limited by an intestinal excretion process mediated by P-glycoprotein (P-gp). Polyethylene glycol (PEG) is a known P-gp inhibitor. Dispersion of Famotidine (a P-gp substrate) within PEGylated nanoparticles (NPs) was used to improve its oral bioavailability. In this work, we evaluated the potential impact of NPs prepared from a grafted copolymer of polylactic acid and PEG on P-gp function by studying in vitro permeability of Famotidine across Caco-2 cells. Copolymers of PEG grafted on polylactic acid (PLA) backbone (PLA-g-PEG) were synthesised with 1 mol% and 5 mol% PEG vs...
February 2017: Journal of Microencapsulation
https://www.readbyqxmd.com/read/28027824/protective-effect-of-chamomile-matricaria-recutita-l-decoction-extract-against-alcohol-induced-injury-in-rat-gastric-mucosa
#20
Mohamed-Amine Jabri, Nadhem Aissani, Haifa Tounsi, Mohsen Sakly, Lamjed Marzouki, Hichem Sebai
BACKGROUND: Matricaria recutita L. (Asteraceae), German chamomile, has been widely used in the traditional Tunisian medicine because of having the powerful health benefits. the current study was conducted to determine the protective effect of chamomile (Matricaria recutita L.) decoction extract (CDE) in ethanol-induced ulcer and oxidative stress on gastric mucosa in rat. METHODS: Adult male wistar rats were used and divided into seven groups: Control, EtOH, EtOH+various doses of CDE (25, 50 and 100mg/kg, b...
December 21, 2016: Pathophysiology: the Official Journal of the International Society for Pathophysiology
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