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  • Title: Renal effects of felodipine: a review of experimental evidence and clinical data.
    Author: DiBona GF.
    Journal: J Cardiovasc Pharmacol; 1990; 15 Suppl 4():S29-32. PubMed ID: 1693722.
    Abstract:
    The dihydropyridine calcium channel antagonist felodipine has a wide spectrum of effects on the kidney. From a variety of studies in normotensive and hypertensive animals and human subjects, felodipine produces a decrease in renal vascular resistance that, although predominantly dependent on the decrease in mean arterial pressure (MAP), may be associated with an increase in renal blood flow (RBF). The glomerular filtration rate (GFR) is unchanged. In response to acute felodipine administration, the significant diuresis and natriuresis observed is caused by a direct inhibitory effect on net renal tubular sodium and water reabsorption. While the acute natriuretic response to felodipine administration is modulated by compensatory adaptations over the remainder of the 24-h period and during chronic treatment, the negative sodium balance established is sustained over the duration of the treatment. Renal sodium and water retention are not observed and there is little effect on renal potassium handling. As a vasodilator antihypertensive agent, felodipine produces renal vasodilatation (normal or increased but not decreased RBF) without adverse effects on the GFR or renal sodium and water retention.
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