Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Estrogen facilitates the antinociceptive effect produced by 250 nmol pentazocine in normally cycling females. Pentazocine significantly increased the TFL from 5 to 50 minutes in only proestrous females, but not in diestrous animals. Number of animals per group: proestrous-pentazocine=3, diestrous-pentazocine=3, proestrous-vehicle=3, diestrous-vehicle=5.
