Half-life calculator
Enter a half-life, your dose and how often you take it. The chart shows how the amount from each dose adds up and fades over time.
Updated
An estimate from the numbers you enter, using simple exponential decay. It is not a blood level and not medical advice.
How the estimate works
One dose
Remaining = dose × 0.5^(time ÷ half-life).
Many doses
Each dose decays on its own; the curve is the sum of all of them at every point in time.
Leveling off
With a fixed dose and interval, the total stops rising after roughly four to five half-lives.
Questions
What does half-life mean?
The time it takes for half of an amount to be cleared. After each half-life, what remains halves again.
Is this my blood level?
No. It is a simple model based only on the numbers you enter. Real levels depend on many personal factors.
Where do I find the half-life?
From the product information or your clinician. PepLabo does not fill it in for you.
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