Original Article

Bioactive Markers Based Pharmacokinetic Evaluation of Extracts of a Traditional Medicinal Plant, Piper sarmentosum

Table 4

Cumulative excretion of pellitorine, sarmentine and sarmentosine in feces after oral dose of 500 mg kg−1 of ethanol extract of fruit of P. sarmentosum, and outcome of the extract on urine volume in experimental and control groups.

Excretion parametersRat 1Rat 2Rat 3MeanSD

Excretion of pellitorine
 Cumulative amount in μg (0–72 h)0.0910.05640.08450.07730.0183
 Percent of dose0.0010.0010.0010.0010.000
 Peak time (h)48.00048.00048.00048.0000.000
 Maximum excretion rate (μg h−1)0.0020.0020.0020.0020.000
Excretion of sarmentine
 Cumulative amount in μg (0–72 h)1.21760.8660.8440.9760.2093
 Percent of dose0.00410.00360.00350.00370.0003
 Peak time (h)24.00024.00024.00024.0000.000
 Maximum excretion rate (μg h−1)0.0260.0280.0250.0260.002
Excretion of sarmentosine
 Cumulative amount in μg (0–72 h)5.2063.0464.8824.3771.165
 Percent of dose1.1170.6531.0470.9390.249
 Peak time (h)24.00024.00024.00024.0000.000
 Maximum excretion rate (μg h−1)0.1550.0780.1480.1270.043
Urine volume in experimental group
 Cumulative urinary volume in mL (0–24 h)14.52018.35016.75016.5401.924
 Maximum urine flow rate (mL h−1)0.6050.7650.6970.6890.081

Control 1Control 2Control 3MeanSD

Urine volume in control group
 Cumulative urinary volume in mL (0–24 h)15.67017.34014.43015.8131.461
 Maximum urine flow rate (mL h−1)0.6530.7230.6020.6590.061

Each value represents the mean of three rats ± SD.