20- 30% af en enkelt intravenøst administreret dosis udskilt i urinen, hvilket tyder på, at 70- 80% udskilles via lever- galde systemet.
Excretion In healthy men, approximately 20-30% of a single intravenously administered dose is excreted in the urine, suggesting that 70-80% is excreted via the hepato-biliary system.