Half-life rhythm sandbox
Explore how published terminal half-life values shape relative buildup and washout curves across an illustrative schedule. Nothing you type here is saved or sent anywhere.
Illustrative schedule inputs
About 6.9 days
Enter 0 for instant peak, or below 95% of half-life to include absorption rise.
Used strictly to scale relative superposition inside the 0–100% chart.
Medication rhythm
Relative educational curve from your logged doses and active schedule.
Includes typical label time-to-peak; individual absorption varies.
Dashed line reflects your own active schedule and entered steps, not a dose recommendation.
Estimated rhythm based on published half-life. Not a blood concentration, dose recommendation, or medical advice.
Mathematical washout milestones
Derived purely from exponential decay (50% remaining per half-life) after a final entered impulse. Individual absorption and clearance vary.
- ~50% eliminated (1 × t½)
- 165h (~6.9d)
- ~97% eliminated (5 × t½)
- 825h (~34.4d)
- >99% eliminated (7 × t½)
- 1155h (~48.1d)
- Peak vs. single dose
- 1.99× single-dose peak
Need reconstitution or syringe unit math?
With a Zeppy account you can log real doses and view this curve alongside your own scheduled plan and repeating cycle windows.
This app is for tracking and education only. It does not provide medical advice, diagnosis, or treatment recommendations. Talk to your healthcare provider before making medication or treatment decisions.