{"title":"Pharmacokinetics of 2-hydroxyflutamide, a major metabolite of flutamide, in normal and CCl4-poisoned rats.","authors":"C J Xu, D Li","doi":"","DOIUrl":null,"url":null,"abstract":"<p><strong>Aim: </strong>To study the pharmacokinetics of 2-hydroxyflutamide (HF), a major active metabolite of flutamide (Flu), in normal and CCl4-poisoned rats.</p><p><strong>Methods: </strong>Normal and CCl4-poisoned rats were given i.g. HF 25 mg.kg-1. HF concentrations of plasma were determined by HPLC with YWG C 18 column, Flu was used as an internal standard. The mobile phase was composed of methanol: water = 3:2 (vol), and absorbance was measured at lambda 295 nm.</p><p><strong>Results: </strong>HF elimination was inhibited in CCl4-poisoned rats compared with normal rats. K decreased from (0.11 +/- 0.05) to (0.05 +/- 0.01) h-1 (P < 0.01), T1/2 was prolonged from (6.8 +/- 1.9) to (14 +/- 4) h (P < 0.01), Cl decreased from (0.18 +/- 0.06) to (0.12 +/- 0.02) L.kg-1.h-1 (P < 0.05), AUC increased from (149 +/- 47) to (226 +/- 54) mg.L-1.h (P < 0.05).</p><p><strong>Conclusion: </strong>This HPLC assay was sensitive and precise, and the elimination of HF was inhibited due to CCl4 poisoning.</p>","PeriodicalId":24002,"journal":{"name":"Zhongguo yao li xue bao = Acta pharmacologica Sinica","volume":"20 7","pages":"655-8"},"PeriodicalIF":0.0000,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zhongguo yao li xue bao = Acta pharmacologica Sinica","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Aim: To study the pharmacokinetics of 2-hydroxyflutamide (HF), a major active metabolite of flutamide (Flu), in normal and CCl4-poisoned rats.
Methods: Normal and CCl4-poisoned rats were given i.g. HF 25 mg.kg-1. HF concentrations of plasma were determined by HPLC with YWG C 18 column, Flu was used as an internal standard. The mobile phase was composed of methanol: water = 3:2 (vol), and absorbance was measured at lambda 295 nm.
Results: HF elimination was inhibited in CCl4-poisoned rats compared with normal rats. K decreased from (0.11 +/- 0.05) to (0.05 +/- 0.01) h-1 (P < 0.01), T1/2 was prolonged from (6.8 +/- 1.9) to (14 +/- 4) h (P < 0.01), Cl decreased from (0.18 +/- 0.06) to (0.12 +/- 0.02) L.kg-1.h-1 (P < 0.05), AUC increased from (149 +/- 47) to (226 +/- 54) mg.L-1.h (P < 0.05).
Conclusion: This HPLC assay was sensitive and precise, and the elimination of HF was inhibited due to CCl4 poisoning.
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