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In vitro interaction studies of diltiazem with H2 receptor antagonists

机译:地尔硫卓与H 2 受体拮抗剂的体外相互作用研究

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Diltiazem is a well-known cardiovascular drug that is used clinically for the treatment of angina pectoris and hypertension. H2-receptor antagonists are used to treat gastroesophageal reflux, gastric and duodenal ulceration. In vitro interaction studies of diltiazem with H2-receptor antagonists (cimetidine, ranitidine, and famotidine) were investigated by using spectrophotometric and RP-HPLC techniques. The availability of diltiazem was found to be influenced considerably in presence of H2-receptor antagonists. The effect of various dissolution mediums, simulating body environments with respect to pH on these interactions was examined to elucidate the mechanism of these interactions. Moreover, diltiazem-H2 receptor complexes were synthesized to confirm the interaction of these drugs. The complexes formed were then characterized by IR spectroscopy and verified by computational molecular modeling.
机译:地尔硫卓是一种著名的心血管药物,临床上用于治疗心绞痛和高血压。 H 2 -受体拮抗剂用于治疗胃食管反流,胃和十二指肠溃疡。采用分光光度法和RP-HPLC技术研究了地尔硫卓与H 2 受体拮抗剂(西咪替丁,雷尼替丁和法莫替丁)的体外相互作用。发现在H 2 受体拮抗剂的存在下,地尔硫卓的可用性受到很大影响。考察了各种溶解介质(针对pH值模拟人体环境)对这些相互作用的影响,以阐明这些相互作用的机理。此外,合成了地尔硫卓-H 2 受体复合物以证实这些药物的相互作用。然后通过红外光谱对形成的复合物进行表征,并通过计算分子模型进行验证。

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