The plasma concentration and cumulative urinary excretion over 34h of dextromethorphan, free and conjugated dextrorphan, and 3-hydroxymorphinan were determined in seven healthy Japanese subjects after oral administration of 30mg dextromethorphan hydrobromide. Conjugated metabolites were extensively
Oxidative polymorphism of dextromethorphan in a Burundi population
β Scribed by F. Nsabiyumva; Y. Furet; E. Autret; A. P. Jonville; M. Breteau
- Publisher
- Springer
- Year
- 1991
- Tongue
- English
- Weight
- 258 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0031-6970
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β¦ Synopsis
The wide availability, metabolism by the same cytochrome P450 as debrisoquine and, above all, the inocuity of dextromethorphan (DMP) favour the frequent choice of this drug as the test substance in determining oxidation phenotypes. 100 healthy Burundian volunteers (94 m and 6 f) in this study ingested 50 mg DMP bromhydrate, i.e. 38.5 mg of DMP base. Urine was collected for 8 h following the dose and TLC was used to analyse it. The method was particularly useful in view of its low cost, speed and the ease of applying it to a large study group. 5% of the Burundian subjects were poor metabolizers.
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Simple, sensitive and selective enzyme immunoassays (ELISA) for monitoring urinary dextromethorphan and its major metabolite, dextrorphan, were developed. Dextromethorphan and dextrorphan hemisuccinates were linked to bovine serum albumin and specific antisera against each immunogen were raised in r
The debrisoquine hydroxylation phenotype was studied in 152 unselected healthy Tasmanian subjects, who were mostly Caucasians of British ancestry. Following a 10 mg oral dose of debrisoquine (D), the ratio of D/4-hydroxydebrisoquine excreted in 8-h urine (metabolic ratio, MR) was determined. MR valu
The genetic oxidation polymorphism was determined in 160 healthy Polish volunteers from the southwest of Poland (Wroctaw region), using sparteine as a model drug. The results of a Polish population study revealed a bimodal distribution of the sparteine metabolic ratio and showed the existence of two