Elimination Efter intravenøs administration af fentanyl udskilles mindre end 7% af den administrerede dosis uændret i urinen, og kun cirka 1% udskilles uændret i fæces.
Elimination Following the intravenous administration of fentanyl, less than 7% of the administered dose is excreted unchanged in the urine, and only about 1% is excreted unchanged in the faeces.