Fluoxetine inhibits desipramine metabolism

Autor: Joseph Biederman, James G. Flood, Ross J. Baldessarini, Timothy E. Wilens, McDermott Sp, P R Puopolo
Rok vydání: 1992
Předmět:
Zdroj: Archives of general psychiatry. 49(9)
ISSN: 0003-990X
Popis: To the Editor.— We read with interest the article by Nelson et al 1 on the treatment of depression with fluoxetine and desipramine, particularly regarding effects of fluoxetine on serum levels of desipramine and its major active metabolite, 2-hydroxydesipramine. Fluoxetine can elevate blood concentrations and the risk of toxic effects of tricyclic antidepressants unless their dose is greatly restricted. 2,3 This interaction probably reflects competition for enzymatic oxidation. 4 Although ring-hydroxylation to 2-hydroxydesipramine is a major route of metabolism of desipramine, assessment of effects of fluoxetine on 2-hydroxydesipramine is very limited. 2-4 In a retrospective comparison of 14 adults with depression given desipramine and fluoxetine and 52 patients given desipramine alone, Nelson et al 1 found serum desipramine levels to be similar in both groups despite an approximate reduction of 30% in desipramine dose with fluoxetine. In their data, we find (eg, at 4 weeks of fixed-dose treatment) lower mean
Databáze: OpenAIRE