Pk parameter Non Diabetic groups Diabetic Groups
Pioglitazone PIO+PIP(SDI) PIO+PIP(MDI) Pioglitazone PIO+PIP(SDI) PIO+PIP(MDI)
Cmax (μg/mL) 2.03 ± 0.49 2.04 ± 0.17 2.06 ± 0.28 2.01 ± 0.87 2.02 ± 0.17 2.37 ± 0.31
Tmax (hrs) 0.5 ± 0 1 ± 0 1 ± 0 0.5 ± 0 1 ± 0 1 ± 0
AUC0 to n (μg/ hr mL) 9.21 ± 1.12 11.29 ± 4.97 * 13.32 ± 2.14 * 12.65 ± 1.97 14.90 ± 2.11 19.70 ± 3.16*
AUC total (μg /hr mL) 10.44 ± 3.07 13.86 ± 2.07 16.62 ± 5.13 * 15.54 ± 3.12 19.03 ± 2.28 * 28.31 ± 3.17 **
AUMC0 to n (μg/ hr*hr mL) 71.22 ± 15.10 93.41 ± 11.71 111.48 ± 14.18** 111.30 ± 17.37 132.20 ± 12.73* 185.38 ± 16.11**
AUMC total (μg /hr*hr mL) 115.09 ± 26.94 193.44 ± 21.18 241.45 ± 28.01** 222.53 ± 23.16 297.57 ± 27.49* 570.43 ± 32.04**
T1/2 (hrs) 7.98 ± 1.14 10.32 ± 0.91* 10.71 ± 2.13 * 9.98 ± 2.17 11.09 ± 1.17 14.37 ± 1.54 **
MRT (hrs) 11.01 ± 2.17 13.94 ± 1.98 14.52 ± 2.54 * 14.31 ± 1.17 15.62 ± 0.16 20.14 ± 0.91 *
Cl (ml/hr) 0.95 ± 0.11 0.72 ± 0.17 0.60 ± 0.14* 0.64 ± 0.15 0.52 ± 0.13 0.35 ± 0.02 *
Vd (ml) 11.02 ± 3.96 10.74 ± 2.15 9.29 ± 1.57 9.26 ± 1.96 8.41 ± 1.05 7.32 ± 0.97
Vdss (mL) 10.54 ± 3.93 10.05 ± 2.93 8.73 ± 2.47 9.20 ± 2.01 8.20 ± 1.28 7.11 ± 1.14
Mean ± SD; ***significant at p<0.001;**significant at p<0.01; *significant at p<0.05 compared to pioglitazone control; SDI: Single Dose Interaction; MDI: Multiple Dose Interaction; PIO: Pioglitazone; PIP: Piperine.
Table 3: Mean Pharmacokinetic parameters of pioglitazone in presence of piperine (SDI & MDI) in non diabetic and diabetic rabbits.