Half-Life Visualizer
Interactive pharmacokinetic graph to visualize compound decay over time. Select a preset compound or enter custom parameters and explore the decay curve.
Decay Milestones
Time to reach key concentration thresholds based on current parameters.
Understanding Half-Life
Key concepts for interpreting the pharmacokinetic decay model.
What is Half-Life?
Half-life is the time required for the concentration of a substance to reduce by half. After each half-life period, 50% of the remaining dose is eliminated.
The Decay Formula
Remaining dose = Initial × (0.5)^(t / t½). After 5 half-lives, less than 3.1% of the original dose remains — considered clinically negligible in most contexts.
Research Application
Understanding half-life helps researchers optimize dosing intervals, maintain therapeutic windows, and plan multi-dose protocols without accumulation issues.