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.
journal_name
Eur J Drug Metab Pharmacokinetjournal_title
European journal of drug metabolism and pharmacokineticsauthors
Mihailova D,Velkov M,Zhivkova Zdoi
10.1007/BF03189858subject
Has Abstractpub_date
1987-01-01 00:00:00pages
25-30issue
1eissn
0378-7966issn
2107-0180journal_volume
12pub_type
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