Brompheniramine hydrogen maleate - CAS 980-71-2
Catalog number: 980-71-2
Category: Inhibitor
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Molecular Weight:
Histamine Receptor
Brompheniramine hydrogen maleate is a histamine H1 receptors antagonist.
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1.Histamine release by some new skeletal muscle relaxants studied at the rat ileum.
Wali FA;Hayter A;Greenidge E;Makinde V Acta Physiol Hung. 1988;71(3):435-44.
The effects of 6 non-depolarizing muscle relaxants on histamine release were investigated, pharmacologically, using histamine and histamine antagonists, e.g. mepyramine, clemastine, dimotane. The results showed that gallamine, pancuronium, vecuronium, atracurium, tubocurarine and alcuronium produced concentration-dependent contractions in the rat ileum, gallamine and pancuronium being the most effective agents in producing muscle contraction. The H1 blocker, mepyramine, reduced the contractions produced by the muscle relaxants, as well as that produced by histamine. However, there was always some residual contraction, not blocked by high concentrations of mepyramine in the case of the muscle relaxants, but not in the case of histamine, the contraction of which was totally blocked by high concentrations of mepyramine. These results also suggested that, in part, the contraction produced by muscle relaxants, may be due to a mechanism other than histamine release, e.g. release of other mediators and/or an effect on intracellular calcium ions. Since very high concentrations of atracurium and vecuronium (40-50 times higher than clinical concentrations) were used in this study to produce marked contractions, the implication is that in clinical concentrations, they have little effect on histamine release.
2.Ion-pair reversed-phase high-pressure liquid chromatography of cough-cold syrups I: pseudoephedrine hydrochloride, brompheniramine maleate, and dextromethorphan hydrobromide.
Chao MK;Holcomb IJ;Fusari SA J Pharm Sci. 1979 Nov;68(11):1463-4.
Pseudoephedrine hydrochloride (I), brompheniramine maleate (II), and dextromethorphan hydrobromide (III) in a cough-cold sytup were separated and determined by ion-pair reversed-phase high-pressure liquid chromatography. The separation was carried out using a muBondapak C18 column (30 cm x 3.9 mm i.d.) and a mobile phase of acetonitrile-water-acetic acid (40:60:1) with 0.01 N 1-octanesulfonic acid sodium salt and 0.05 N potassium nitrate. Detection was accomplished using a UV detector at 265 nm for I and II; III was monitored at 280 nm. Concentration versus peak height plots in the ranges of 0.37-1.9 mg/ml for I, 0.025-0.126 mg/ml for II, and 0.125-0.625 mg/ml for III were linear. Ten consecutive injections of a mixture gave a percent relative standard deviation of less than 1% for all three components. Average recoveries from laboratory-prepared samples were 100.5% for I, 100.9% for II, and 100.1% for III. No precolumn cleanup was necessary, and the chromatogram was complete in 16 min.
3.X-ray powder diffraction data for selected drugs: furosemide, hydrochlorothiazide, naproxen, naproxen sodium, propranolol hydrochloride, and the halopheniramine maleates.
De Camp WH J Assoc Off Anal Chem. 1984 Sep-Oct;67(5):927-33.
X-ray powder diffraction data for 9 commonly used drug substances are reported. The data for furosemide, hydrochlorothiazide, propranolol hydrochloride, dexchlorpheniramine maleate, and brompheniramine maleate have been indexed by reference to published crystal structure data. The racemic modifications of propranolol hydrochloride and brompheniramine maleate are shown to exist as racemic compounds rather than racemic mixtures.
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CAS 980-71-2 Brompheniramine hydrogen maleate

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