INTERACTION AMITRIPTYLINE WITH KETOCONAZOLE AND QUINIDINE
INTERACTION AMITRIPTYLINE WITH KETOCONAZOLE AND QUINIDINE
批准号:
6114448
负责人:
DAVID J GREENBLATT
金额:
$4.27万
依托单位:
依托单位国家:
美国
项目类别:
财政年份:
1998
资助国家:
美国
项目状态:
已结题
起止时间:
1998-12-01 至 1999-11-30
中文摘要
体外研究表明,阿米替林N-去甲基化为去甲替林主要由细胞色素P450- 3A 4介导,而阿米替林羟基化为10-羟基-阿米替林部分由P450- 2D 6介导。 该数据预测了联合使用酮康唑或奎尼丁(分别为3A 4和2D 6的高活性和相对特异性竞争性抑制剂)时阿米替林体内清除受损的可能性。 将在两项前瞻性双盲对照动力学-动力学研究中检验这一假设。
英文摘要
In vitro studies demonstrate that N-demethylation of amitriptyline to nortripty-line is mediated mainly by cytochrome P450-3A4, while hydroxylation of amitripty line to 10-hydroxy-amitriptyline is mediated in part by P450-2D6. This data pre-dicts the possibility of impaired clearance of amitriptyline in vivo by coadmin-istration of ketoconazole or quinidine, highly active and relatively specific competitive inhibitors of 3A4 and 2D6, respectively. This hypothesis will be tested in two prospective double-blind controlled kinetic-dynamic studies.
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