// multi-utility computation suite · offline · instant · precise
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│ computation suite │
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health.first-order-pharmacokinetics Calculator
Models first-order pharmacokinetic elimination from an IV bolus dose, calculating plasma concentration at any time post-dose. Drug concentration declines exponentially in first-order elimination — each half-life reduces remaining concentration by 50%.
Inputs
Dose Mg
Amount of medication administered per period. Most dosing is weight-based — verify with a licensed prescriber before clinical use.
Volume Distribution L
Three-dimensional space occupied (m³ or L). 1 m³ = 1,000 L.
Half Life Hr
Reference formula or conversion factor shown for context.
Time Hr
Amount of medication administered per period. Most dosing is weight-based — verify with a licensed prescriber before clinical use.
Results
initial concentration C₀ (mg/L)
The proportional relationship between two quantities.
concentration at t (mg/L)
The proportional relationship between two quantities.
elimination rate ke (1/hr)
The value at the specified point or condition.
AUC (mg·hr/L)
Reference formula or conversion factor shown for context.