Research Article
Study on the Antinociceptive Effects of Herba Epimedium in Mice
Figure 2
The writhing times in the mouse acetic acid abdominal constriction test during 35 min after i.c.v. injection of HE and Metoprolol. Values are means ± S.E.M. Significant difference from the control (saline) at each time point represented and . compared to HE.