Publications by authors named "al-Meshal M"

Background And Aim: Physicians' attitudes towards disease prevention are crucial. The purposes of this study are to examine the prevalence of cardiovascular risk factors and adherence to international preventive screening programmes by a group of physicians.

Methods: Online and paper format questionnaires were completed by a sample of 650 physicians from November 2010 to March 2011.

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A rapid and selective high-performance liquid chromatographic (HPLC) method for the quantitative determination of meropenem in plasma is described. The drug was separated from plasma after plasma protein precipitation with 15% of trichloroacetic acid. The mobile phase consisted of acetonitrile-water-glacial acetic acid (21.

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This investigation was carried out to evaluate the bioavailability of a new tablet formulation of ibuprofen (600 mg), Profinal, relative to reference product, Brufen (600 mg) tablets. The 2 brands were found to be similar in assay, weight variation and dissolution as stipulated by the USP XXII, as well as the disintegration time, as specified by the BP 1988. The bioavailability was carried out on 18 healthy male volunteers who received a single dose (600 mg) of the test (T) and the reference (R) products in the fasting state, in a randomized balanced 2-way crossover design.

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The purpose of this study was to determine whether a concomitant single oral dose of one of the anion exchange resins colestipol hydrochloride (10 g) or cholestyramine (8 g) administered with ibuprofen (400 mg) would alter the bioavailability of this non-steroidal anti-inflammatory agent. The study was performed according to a randomized three-way crossover design in six healthy male volunteers. After dosing, serial blood samples were collected for a period of 10 h.

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The effect of oral administration of the non-absorbable anion-exchange resins cholestyramine and colestipol hydrochloride on the absorption of diclofenac in man was studied. Adsorption studies in vitro were also performed. In a randomized crossover study consisting of three phases, single doses of water suspensions of colestipol hydrochloride (10 g), or cholestyramine (8 g), or water only were given to six healthy male volunteers immediately following ingestion of diclofenac (100 mg).

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The effect of oral administration of the non-absorbable anion-exchange resins cholestyramine and colestipol on the systemic clearance and other pharmacokinetic parameters of intravenously administered ibuprofen (25 mg kg-1) was studied in rabbits. Single doses of colestipol hydrochloride (0.4 g kg-1) or cholestyramine (0.

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The pharmacokinetics of propranolol following intravenous administration (1 mg/kg), with and without treatment with oral activated charcoal, was investigated in rabbits. In charcoal-treated rabbits a significant reduction in propranolol serum concentrations was observed compared to control animals. Charcoal treatment significantly reduced the half-life of elimination (16.

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A rapid and sensitive high-performance liquid chromatographic (HPLC) assay was developed for quantitative determination of propranolol in serum. The assay is performed after single extraction of propranolol and indenolol [internal standard (IS)] from alkalinized serum into ether and eluted from C-18 U Bondapak column with a mobile phase composed of methanol: 0.01 M phosphate buffer pH 3.

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The upper gastrointestinal toxicity is one of the most common side effects associated with the use of nonsteroidal anti-inflammatory drugs (NSAIDs). Many attempts to prepare potent NSAIDs free from gastrotoxicity have failed. Hence, development of formulations to mask the gastropathy of NSAIDs are warranted.

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A rapid high-performance liquid chromatographic (HPLC) method for quantitative determination of indomethacin in serum is described. The assay was performed after single extraction of indomethacin and itraconazole (internal standard) from serum using diethyl ether and eluted from a 4 micron C-18 reversed-phase column at ambient temperature. The mobile phase consisted of ethanol:water:glacial acetic acid (65:34:1, v/v) pumped isocratically at a flow rate of 1.

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Two different formulations of phenylbutazone, one made to contain 0.5% w/v Brij 96 and the other without surfactant, were prepared by conventional crystallization and compressed to tablets by direct compression using a single punch tabletting machine fitted with 3 mm punches. The relative bioavailability of phenylbutazone was determined in Newzealand rabbits.

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