Influence of route of administration on progesterone metabolism

Maturitas. 1995 Apr;21(3):251-7. doi: 10.1016/0378-5122(94)00882-8.

Abstract

While inducing similar progesterone levels, the ratio of 5 alpha- and 5 beta-pregnanolone/progesterone plasma concentrations has been dramatically increased after oral as opposed to vaginal administration, in a cross-over study. The known psychotropic effects of 5 alpha- and 5 beta-pregnanolone lead to different indications and precautions for oral and vaginal administration of progesterone.

Publication types

  • Clinical Trial
  • Comparative Study
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • 20-alpha-Dihydroprogesterone / blood
  • Administration, Intravaginal
  • Administration, Oral
  • Cross-Over Studies
  • Desoxycorticosterone / blood
  • Female
  • Humans
  • Pregnanolone / blood
  • Progesterone / administration & dosage*
  • Progesterone / blood
  • Progesterone / pharmacokinetics*

Substances

  • 20-alpha-Dihydroprogesterone
  • Desoxycorticosterone
  • Progesterone
  • Pregnanolone