Chronic effects of nitrendipine on renal hemodynamics and tubular transport.

Published

Journal Article

The effects of nitrendipine (10 mg, during acute clearance experiments) given both acutely and after 2 weeks of administration were examined in normal and hypertensive subjects. At the initiation of therapy, nitrendipine caused an increase in glomerular filtration rate and effective renal plasma flow in the hypertensive, but not in the normal, group. Percentage excretion rates of sodium (%ENa) and phosphate (%EPi) and free water clearance (CW) increased in both groups at the initiation of therapy. After 2 weeks of nitrendipine therapy repeat acute clearance studies showed that the drug no longer increased glomerular filtration rate or effective renal plasma flow in hypertensive subjects, the increases in %ENa and CW persisted in normal subjects and trended upward in hypertensive subjects, and the increase in %EPi persisted in both normal and hypertensive individuals. We conclude that nitrendipine is not sodium retentive after chronic therapy and the acute increase in %ENa, %EPi, and CW after its initial administration suggests a proximal tubular effect.

Full Text

Duke Authors

Cited Authors

  • Lupinacci, L; Palomino, C; Greenberg, A; Puschett, JB

Published Date

  • January 1988

Published In

Volume / Issue

  • 43 / 1

Start / End Page

  • 6 - 15

PubMed ID

  • 3335119

Pubmed Central ID

  • 3335119

Electronic International Standard Serial Number (EISSN)

  • 1532-6535

International Standard Serial Number (ISSN)

  • 0009-9236

Digital Object Identifier (DOI)

  • 10.1038/clpt.1988.5

Language

  • eng