Figure 2. Effects of intravenous Q3GA, Q3'S, and I3GA (1 mg/kg) and Q3GA (0.02, 0.2 mg/kg) on mean arterial blood pressure (A, C) and heart rate (B, D) measured by direct carotid artery recording in a conscious rat.

Results are means ± SEM of 4–6 experiments. * P<0.05 vs. saline.