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Showing 1 to 14 of 14 for “"Ranitidine"”.
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Pharmacometric modeling and simulation of ranitidine In human gastric acid secretion.
… associated with acute gastric hemorrhage. Ranitidine has been used widely to prevent the gastric mucosal damage in critically ill patients. Data previously collected in two clinical trials included repeated measures of both plasma concentrations of ranitidine as well as multiple gastric …
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Evaluation of SPEC®•Microcolumns for the extraction of ranitidine from urine
… are evaluated for the extraction of Zantac® (ranitidine hydrochloride) from urine for high performance liquid chromatography (HPLC) analysis. SPEC®⋅Microcolumns are rigid disc structures with glass fiber impregnated with silica gel. These microcolumns look like packed-bed SPE cartridges but …
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The pharmacokinetics of ranitidine in patients with chronic duodenal ulceration and in patients with chronic renal failure
The pharmacokinetics of orally administered ranitidine were studied in 10 patients with endoscopically proved duodenal ulceration after a single 150 mg dose and after 4 weeks 1 ranitidine treatment (150 mg twice daily), at which time there was endoscopic evidence of complete ulcer healing. After a …
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ΝΕΟΙ ΠΟΤΕΝΣΙΟΜΕΤΡΙΚΟΙ ΑΝΙΧΝΕΥΤΕΣ ΜΕ ΕΦΑΡΜΟΓΕΣ ΣΤΗ ΦΑΡΜΑΚΕΥΤΙΚΗ ΑΝΑΛΥΣΗ
… MEPERITINE, PROPANTHELINE, CIMEBILINE AND RANITIDINE. THESTUDY INCLUDED. 1) THE APPLICATION OF THESE ELECTRODES TO PHARMACEUTICAL ANALYSIS (DIRECT POTENTIOMETRY). 2) THE CALCULATION OF THE IONIZATION CONSTANT (KA) OF MEPERIDINE, CIMETIDINE AND RANITIDINE. 3) THE STUDY OF PERMEATION OF …
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The study of capillary electrophoresis: polyimides, nylon and non-aqueous analysis
… to do by other methods. Third, a method for ranitidine, an ulcer disease, in urine is developed. Solid phase extraction conditions and the CZE procedure conditions are optimized. Experimental results show that good recovery of the drug from a urine sample and relatively good reproducibility …
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Spatial and temporal analysis of pharmaceutical concentrations and chitobiase activity in the Upper Tennessee River
… carbamazepine, sulfamethoxazole, trimethoprim, ranitidine, ciprofloxacin, levofloxacin, sertraline, fluoxetine, norfluoxetine, diltiazem, lovastatin, and atorvastatin). The simultaneous method pre-concentrated analytes by a factor of 1000 with percent recoveries ranging from 44% to 104% and RSDs …
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Regulation of ERK1/2 and SAPK/JNK Phosphorylation by Histamine
… pyrilamine (10<sup>-6</sup> M), H2R antagonist ranitidine (10<sup>- 5</sup> M), H3/H4R antagonist thioperamide (10<sup>-6</sup> M), and H3R antagonist clobenpropit (10<sup>-5</sup> M) inhibited histamine mediated ERK2 phosphorylation suggesting that all four histamine receptor subtypes played …
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Racial differences in cardiovascular responses following an acute bout of aerobic exercise
… H1R and H2R antagonist (fexofenadine and ranitidine) or a control placebo followed by the other condition on the second visit between 3 pm to 8 pm. During study visits, subjects rested in the supine position for baseline BP, cardiac output, peripheral resistance and arterial stiffness …
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Regulation of STAT6 and STAT4 Phosphorlation by Histamine
… phosphorylation. However, H2 receptor antagonist ranitidine and H3/H4 receptor antagonist thioperamide did not affect the histamine mediated hyper-phosphorylation of STAT6 and STAT4. Furthermore, HI receptor agonist betahistine enhanced the phosphorylation of STAT4 and STAT6 whereas H2 receptor …
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Investigations of Pharmacokinetic Challenges in Premature Infants
… patients. Acetaminophen, caffeine, phenytoin, ranitidine, and theophylline are widely used in the pharmacotherapy of premature and term neonates, but only limited information is currently available on the PK of these medications in premature neonates. An accurate, sensitive and reliable …
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USE OF HYPROMELLOSE AND HYDROXYPROPYL CELLULOSE TO DEVELOP AN AGE APPROPRIATE PLATFORM TECHNOLOGY FOR THE ADMINISTRATION OF MEDICINES TO CHILDREN
… of dehydration and onset of precipitation and ranitidine hydrochloride increased the temperatures of dehydration and precipitation. This is probably associated with a salting in effect. HPC was used to form films which disintegrate in <30 seconds but are able to retard dissolution rate of …
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Model-Based Measures Of Interrater Agreement
… disease modifying drug candidates.</p> <p>A ranitidine analog, JWS-USC-75-IX (JWS,[(3-[[[2-[[(5-dimethylamino methyl)-2-furanyl]methyl]thio]ethyl]amino]-4-nitropyridazine) has demonstrated both AChE inhibition and M2 receptor antagonism at submicromolar concentrations in in vitro assays, …
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Comparitive activities and mechanisms of action of three novel antiulcer agents
… of the three compounds with omeprazole and ranitidine in terms of their ability to inhibit acid secretion and their activity in a range of experimental ulcer models. Potency, duration of action and activity against a range of stimulants of acid secretion (histamine, pentagastrin and basal) …
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Regulation of STAT-1 Phosphorylation by Histamine Through H1 and H2 Receptors: Inverse Agonism and PKA-PKC Interaction in STAT-1 Phosphorylation
… antagonists pyrilamine maleate, tripelennamine, ranitidine, cimetidine and thioperamide; cAMP agonists N6, 2 -0-dibutyryladenosine-3,5 -cyclic monophosphate sodium salt (db-cAMP) and forskolin; protein kinase A inhibitors N-(2-[p-bromocinnamylamino]ethyl)-5-isoquinoline-sulfonamide (H-89) and Rp …