Research Article

Simultaneous Determination of Six Components in Beagle Dog Plasma by UPLC-MS/MS and Its Application to a Comparative Pharmacokinetic Study of Three Different Yuanhu Zhitong Preparations

Table 8

PK parameters of the six analytes after oral administration of YHZT OL, YHZT DT, and YHZT DP (mean ± SD, n = 6).

AnalyteGroupTmax (h)Cmax (NG/ML)T1/2 (h)AUC0-t (NG H/ML)MRT0-t (h)Vd (ML/KG)CL (ML/H/KG)

CdeYHZT OL0.44 ± 0.1736.75 ± 12.6715.96 ± 6.2474.96 ± 20.437.05 ± 1.5467.93 ± 39.842.83 ± 0.67
YHZT DT0.83 ± 0.6218.78 ± 10.8522.47 ± 6.5765.94 ± 17.1811.06 ± 1.25123.43 ± 44.493.84 ± 1.13
YHZT DP0.56 ± 0.1730.77 ± 10.8026.86 ± 11.1792.14 ± 24.8312.00 ± 2.4559.50 ± 20.141.64 ± 0.58

ThpYHZT OL0.42 ± 0.2080.83 ± 31.407.81 ± 0.50254.31 ± 82.507.30 ± 1.3711.42 ± 3.981.01 ± 0.34
YHZT DT1.33 ± 1.3045.70 ± 20.347.94 ± 0.67179.81 ± 51.987.69 ± 1.6711.15 ± 4.240.96 ± 0.31
YHZT DP0.61 ± 0.2552.50 ± 15.237.55 ± 2.63172.35 ± 62.795.23 ± 2.6412.01 ± 6.071.07 ± 0.40

ThbYHZT OL0.31 ± 0.197.42 ± 3.672.58 ± 1.366.79 ± 3.141.57 ± 0.4215.05 ± 7.725.01 ± 4.16
YHZT DT0.72 ± 0.654.53 ± 2.624.52 ± 2.058.60 ± 4.013.40 ± 1.3730.09 ± 22.464.58 ± 2.45
YHZT DP0.53 ± 0.229.87 ± 4.644.60 ± 4.5314.24 ± 6.992.63 ± 1.2414.99 ± 11.722.52 ± 1.03

BcinYHZT OL0.31 ± 0.1921.57 ± 10.390.27 ± 0.0510.56 ± 3.630.43 ± 0.089.99 ± 4.0325.76 ± 8.49
YHZT DTNDNDNDNDNDNDND
YHZT DP0.50 ± 0.1844.48 ± 19.090.45 ± 0.4028.86 ± 13.060.59 ± 0.185.13 ± 6.786.54 ± 2.28

ThcYHZT OL0.31 ± 0.1949.17 ± 17.761.94 ± 0.3858.28 ± 22.301.72 ± 0.151.08 ± 0.660.38 ± 0.20
YHZT DT0.72 ± 0.65130.67 ± 66.391.68 ± 0.39222.98 ± 96.042.30 ± 0.930.82 ± 0.430.34 ± 0.18
YHZT DP0.56 ± 0.17201.33 ± 114.792.49 ± 1.29329.31 ± 188.702.08 ± 0.380.68 ± 0.480.18 ± 0.09

BcolYHZT OL0.31 ± 0.194.30 ± 2.100.27 ± 0.052.16 ± 0.730.44 ± 0.0815.68 ± 6.7239.44 ± 11.44
YHZT DTNDNDNDNDNDNDND
YHZT DP0.50 ± 0.188.58 ± 3.980.49 ± 0.495.74 ± 2.620.63 ± 0.1411.99 ± 17.0413.69 ± 4.75

, compared with oral liquid. ND, nondetected value.