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An internal standard for the quantification of roxatidine
Roxatidine-d10 is intended for use as an internal standard for the quantification of roxatidine by GC- or LC-MS. Roxatidine is a histamine H2 receptor antagonist and major active metabolite of roxatidine acetate .1 Roxatidine reduces histamine-induced adenylate cyclase production in guinea pig parietal cells (IC50 = 0.8 µM). It inhibits histamine-induced hydrogen ion accumulation in the same cells (pA2 = 7.03). Roxatidine (200 mg/kg) reduces small intestinal lesion area in a rat model of gastric mucosal injury induced by indomethacin .2
1.Sewing, K.-F., Beil, W., and Hannemann, H.Comparative pharmacology of histamine H2-receptor antagonistsDrugs35(Suppl. 3)25-29(1988) 2.Umegaki, E., Yoda, Y., Tokioka, S., et al.Protective effect of roxatidine against indomethacininduced small intestinal mucosal injury in ratsJ. Gastroenterol. Hepatol.25(Suppl. 1)S35-S40(2010)
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