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An organic psychosis due to a venlafaxine-propafenone interaction
1Klinik für Psychiatrie und Psychotherapie der Städtischen Kliniken a M-Höchst, Frankfurt, Germany.
International Journal of Psychiatry in Medicine
|April 13, 2002
Abstract
Objective:
An extraordinary case of an organic psychosis during the treatment of a patient with a bipolar affective disorder.
Methods:
Clinical observation and further investigations including monitoring of serum levels (case report).
Results:
A significant interaction between venlafaxine and propafenone causes markedly increased serum levels of venlafaxine correlating with unexpected psychopathological changes.
Conclusions:
There is a potentially dangerous interaction between venlafaxine and propafenone. Serum levels of venlafaxine should be monitored if propafenone is added.