Blood and tissue distribution of cyclosporin A after a single oral dose in the rat

Abstract
After a single oral dose of cyclosporin A (82 mg/kg) in rats, tissue (kidneys liver and brain) and blood levels reached maximum values (approximately 80 μg/g and 3.5 μg/ml) between 3 and 7 h after drug administration. Drug elimination continued for at least 5 days. The 24-h urine and bile elimination was 2% for each.