We have analysed the pharmacokinetics of α-human atrial natriuretic polypeptide (α-hANP) in healthy subjects, using a two-compartment open model following bolus intravenous injection. The plasma half-times for the fast and slow components were 1.7±0.07 min and 13.3±1.69 min respectively. V1 (the volume of the central compartment), Vz (volume of distribution) and Vss (volume of distribution at steady-state) were 5370±855 ml (89.5±14.3 ml·kg-1), 32000±4620 ml (533±77.0 ml·kg-1), and 11900±1530 ml (198±25.5 ml·kg-1) respectively. The mean plasma clearance was 1520±121 ml·min-1 (25.4±2.0 ml·min-1·kg-1.
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