De vigtigste metabolitter er isomere af 5α- dihydro- NET og af tetrahydro- NET, som hovedsageligt udskilles med urinen som sulfat eller glukoronidkonjugater.
The most important metabolites are isomers of 5α-dihydro-NET and of tetrahydro-NET, which are excreted mainly in the urine as sulfate or glucuronide conjugates.