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J Clin Pharmacol. 1992 Feb;32(2):124-32.

Single-dose pharmacokinetics of pravastatin and metabolites in patients with renal impairment.

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1
Division of Nephrology, Hennepin County Medical Center, Minneapolis, MN 55415.

Abstract

The disposition of a single 20-mg oral dose of pravastatin was assessed in subjects with various degrees of renal function. Sixteen subjects (13 males, 3 females) with creatinine clearance values ranging from 15 to 112 mL/min/1.73 m2 completed the study. Area under the serum concentration-time curve, maximum serum concentration, time to maximum serum concentration, terminal serum elimination half-life, apparent clearance, and apparent volume of distribution for pravastatin were not affected by renal impairment, whereas the renal clearance of pravastatin decreased as creatinine clearance decreased (r2 = 0.697, P less than .001). The area under the serum concentration-time curve and time to maximum serum concentration of SQ 31,945 (a hepatic metabolite) increased in patients with renal impairment, whereas the terminal elimination rate constant and renal clearance of SQ 31,945 significantly decreased as a function of creatinine clearance. The renal clearance of another metabolite (SQ 31,906) also significantly declined with decreasing renal function. This single-dose study demonstrates that pravastatin pharmacokinetics were not affected in patients with renal impairment, probably because of its dual route of elimination.

[Indexed for MEDLINE]

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