Free tool · no signup
GLP-1 level plotter
Pick a medication and schedule — watch the curve build to steady state. The same class of model GLPMate runs on your real dose log.
The app runs this same curve on your real dose log — no inputs to fiddle with.
Educational estimate for a typical adult — not a measurement, not medical advice, and never a reason to change your dose. Talk to your prescriber about anything dosing-related.
Your real curve updates itself.
This plotter assumes a perfect schedule. The GLPMate app models your actual dose log — late doses, titration holds, cadence changes — and keeps your level on the Today screen. Free.
How this is calculated
Concentration follows a one-compartment model with first-order absorption: C(t) = Σdoses D·f·(e−ke·Δt − e−ka·Δt), where ke comes from the medication's elimination half-life and ka is fitted to its labeled time-to-peak. Parameters: semaglutide t½ ≈ 168 h, tmax 1–3 days; tirzepatide t½ ≈ 120 h, tmax 8–72 h; dulaglutide t½ ≈ 112 h; liraglutide t½ ≈ 13 h. Curves are normalized to the steady-state peak — the shape is the story, not absolute ng/mL. Full write-up on the science page.
Plotter questions
How accurate is this plotter?
It uses a standard one-compartment pharmacokinetic model with published half-life and time-to-peak parameters from FDA clinical-pharmacology reviews. It shows relative levels well — but it is an educational estimate for a typical adult, not your personal blood concentration.
What do the solid and dashed lines mean?
Solid is your history up to “today”; dashed is the forward projection if you keep the same schedule. The shaded band is the steady-state range your curve settles into.
Why does my level keep rising for the first month?
With a half-life of ~5–7 days, each weekly dose adds to what is left of the previous ones. Accumulation continues until intake and elimination balance — steady state — after roughly 4–5 weeks at the same dose.
Can it model my titration schedule?
The plotter follows the FDA-labeled titration ladder for your chosen medication. For your personal schedule — actual dose dates, custom steps, missed doses — the GLPMate app models your real log automatically.
Is this medical advice?
No. It is an educational visualization. Never change your dose or schedule based on this tool — that conversation belongs with your prescriber.
Prefer it automatic?
The app builds your curve from your real doses — free.