Kinetics of a high dose of piretanide in renal failure

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Abstract
The kinetics of piretanide was studied in patients with renal failure. After oral administration of a high dose of piretanide (96 mg), the pharmacokinetic parameters were: elimination rate constant 0.346±0.072 h−1, half life 2.00±0.35 h, and total plasma clearance 119.55±35.90 ml · min−1. Compared to the values obtained in adults with normal renal function, these results show a decrease in total plasma clearance, but conservation of the metabolic clearance which amounts to 45% of the total clearance in the healthy adult.