Pharmacokinetics Simulations

Two Compartment Model: Single IV Bolus Dose

INTRODUCTION

This simulation is for a single IV bolus dose - for a two compartment model. The model system is NOT at steady state.

Page 2 shows the pharmacokinetic model for this simulation (also available by clicking on the option at the bottom left called "Pharmacokinetic Model"). The equations used are also available - click on "Equations" at the bottom left.

Page 3 provides instructions for the simulation and page 4 covers the simulation itself. In the simulation you can see how changes in the following affect plasma drug concentration levels over time:

  • dose (D)
  • volume of distribution of the central compartment (Vc)
  • first order transfer rate constant from the central to the peripheral compartment (k12)
  • first order transfer rate constant from the peripheral to the central compartment (k21)
  • first order elimination rate constant from the central compartment (k10)

The results can be plotted either on a linear scale or on a semilog scale.