The plasma concentration of RST in the volunteers. At 0, 0.5, 1, 1.5, 2, 4, 8, and 12 hours after RST administration (closed circle, n = 6) or RST + TJ administration (open circle, n = 6). The Tmax was at 4 hours after drug administration. TJ reduced the blood concentration of RST throughout the observation period. *P < 0.05 vs. group RST. Tmax, time of peak concentration; RST, rosuvastatin; TJ, tanjin.