Vancomycin · Before the first dose

Initial Vancomycin Level Prediction

Project concentrations from a planned regimen before measured levels exist, while keeping first-dose and eventual steady-state estimates visibly separate.

Evidence recordRestricted clinical scopeVersion 0.1 · Updated July 17, 2026

Required population-model acknowledgement

A pre-dose prediction is not patient-specific pharmacokinetics.

This tool combines the historical Matzke creatinine-clearance relationship with an editable volume-of-distribution assumption. It can help anticipate a regimen’s concentration profile, but it cannot know the patient’s actual clearance or distribution before concentrations are measured.

Not Bayesian forecasting and not a substitute for measured levels or a validated population model.
Not intended for unstable renal function, dialysis or CRRT, ECMO, pregnancy, pediatrics, major burns, severe fluid shifts, or other markedly altered pharmacokinetics.
First-dose levels are not steady-state levels; the calculator reports them separately.

I understand this is a population estimate before measured levels and will not treat the predicted concentration, AUC, dose, or interval as patient-specific.

Initial Vancomycin Level Calculator

Use this initial vancomycin level calculator to project a post-dose concentration without treating a first dose as if it were already at steady state.

The model is intentionally separated from the two-level steady-state AUC workflow. Its assumptions and exclusions remain visible, and the result is not an automatic dosing recommendation.