Nizatidine

A histamine H2 receptor antagonist

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50mg

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Background

Nizatidine is a histamine H2 receptor antagonist with low toxicity that inhibits gastric acid secretion.Target: Histamine H2 ReceptorNizatidine, a selective histamine H2-receptor antagonist, is a potent inhibitor of gastric acid secretion, with IC50 of 0.9 nM. Nizatidine exhibits maximal inhibition of gastric acid in rats within the first hour of drug administration, with EC50 of 1.383 μmol/kg [1]. Nizatidine also reversibly inhibits acetylcholinesterase (AChE), with IC50 of 6.7 μM, and the inhibition is noncompetitive, with a Ki value of 7.4 μM. Nizatidine (0.3-3 mg/kg, i.v.) significantly increases the motor index of gastrointestinal (GI) motility in a dose-dependent manner. Nizatidine inhibits gastric acid secretion with ED50 and ED90 of 0.18 and 3.22 mg/kg in dogs, and 2.94 and 19.6 mg/kg in rats, respectively [2].

参考文献:
[1]. Lin, T.M., et al., Actions of nizatidine, a selective histamine H2-receptor antagonist, on gastric acid secretion in dogs, rats and frogs. J Pharmacol Exp Ther, 1986. 239(2): p. 406-10.
[2]. Ueki, S., et al., Gastroprokinetic activity of nizatidine, a new H2-receptor antagonist, and its possible mechanism of action in dogs and rats. J Pharmacol Exp Ther, 1993. 264(1): p. 152-7.