Bolus pharmacokinetics: moving beyond mass-based dosing to guide drug administration

Area of Science:

• Pharmacokinetics
• Mathematical Modeling
• Clinical Pharmacology

Background:

• Traditional bolus drug dosing relies on patient mass, which is often imprecise.
• Computer simulations of pharmacokinetic models are effective but not readily available in clinical settings.

Purpose of the Study:

• To develop a simplified mathematical model for determining optimal bolus drug doses.
• To enable precise drug administration without complex simulations.

Main Methods:

• Mathematical manipulations and approximations were used to derive a set of simplified equations.
• The derived equations were validated against computer simulations using diverse pharmacokinetic models.
• A boundary condition was established to ensure the accuracy of the equations.

Main Results:

• The simplified equations provide near-identical results to complex simulation approaches.
• The method accurately identifies the bolus dose needed to reach a target effect site concentration.
• An error boundary condition was successfully established.

Conclusions:

• This simplified pharmacokinetic dosing approach offers a practical alternative to mass-based dosing.
• It facilitates precise medication administration via point-of-care technology.
• The method has potential applications in artificial intelligence for pharmacokinetic dosing.