In vitro metabolism of galanthamine hydrobromide (Nivalin) by rat and rabbit liver homogenate.

Abstract:

:The metabolism of galanthamine hydrobromide (Nivalin) was investigated in rat and rabbit liver homogenates. Experiments were carried out varying several parameters of incubation: substrate (galanthamine hydrobromide, galanthamine, galanthaminone and epigalanthamine), cofactor enrichment (NADPH, NADP/G-6-P, NAD), pH (7.4 and 9.3), time of incubation. Substrates and metabolites were identified and quantitatively determined by GC/MS. In vitro metabolism in rat liver homogenate was negligible. The experiments with rabbit liver homogenate indicated, that galanthamine was actively metabolised the major metabolites being the oxidised product - galanthaminone, and the isomer of galanthamine - epigalantamine. The experimental results show that the metabolism of galanthamine is substrate and product stereoselective.

authors

Mihailova D,Velkov M,Zhivkova Z

doi

10.1007/BF03189858

subject

Has Abstract

pub_date

1987-01-01 00:00:00

pages

25-30

issue

1

eissn

0378-7966

issn

2107-0180

journal_volume

12

pub_type

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