Cimetidine sulfoxide (Cimetidine sulphoxide) 是一种 Cimetidine 的亚砜代谢产物。Cimetidine 是一种组胺 H2 受体 (H2-receptor) 拮抗剂，可用于消化性溃疡和上消化道出血的研究。
Cimetidine sulfoxide (Cimetidine sulphoxide) is a sulfoxide metabolite of Cimetidine. Cimetidine is a histamine H2-receptor antagonist. Cimetidine has the potential for peptic ulcer disease and upper gastrointestinal haemorrhage treatment[1].
Active transport of Cimetidine across the rat small intestine is observable at lower substrate concentrations (40 and 200 μM), but is masked by passive transfer at higher concentrations (400 μM). Cimetidine sulfoxide is detected after some incubations[2].
The enantiomeric composition of Cimetidine sulfoxide is also determined in rat urine (24 h) following the administration of Cimetidine (30 mg/kg; po) to male Wistar rats. The enantiomeric ratio in this case is found to be (+/-) 57:43[3].
[1]. Larsson R, et al. The pharmacokinetics of cimetidine and its sulphoxide metabolite in patients with normal and impaired renal function. Br J Clin Pharmacol. 1982;13(2):163-170.
[2]. HE Barber, et al. The Transport of Cimetidine Across the Rat Small Intestine in Vitro. B r J Pharmacol. 1979 Jul;66(3):496P-497P.
[3]. Ryta A. Kuzel, et al. Investigations into the chirality of the metabolic sulfoxidation of cimetidine. Chirality (1994), 6(8), 607-14.
动态评分
0.0