Whole percent
Measured against your average on a steady dose, so you can see where you are without units to learn.
Medication level
Onederland estimates how much of your GLP-1 medicine is in your body from the doses you log and each medicine's published half-life. It shows the estimate in whole percent, where 100% is your average once you've been on the same dose for a few weeks. It's an estimate, not a lab test.

A demo profile, Maya, with made-up data.
What you see
The estimate follows your doses: each one adds to it, and it fades between them at the medicine's published half-life.
Measured against your average on a steady dose, so you can see where you are without units to learn.
Every dose you log, at the time you took it. A late, skipped or extra dose changes the estimate as it changes your schedule.
The level over the last months, with each dose and skip marked, so a gap or a change is easy to spot.
After a dose increase, the estimate climbs toward the new dose's average over the following weeks.
The Medication level screen shows “Estimated from your logged doses. Not a lab test.” under the number.
Settings, Sources and disclaimers lists the prescribing information and trial results behind each half-life.
How to read it
Beside the percentage, the app says where the estimate is on its way to your average on a steady dose.
The model
Each dose you log adds to the estimate, which then fades at the medicine's half-life: about a week for semaglutide, whether you take it by injection1 or as a tablet2, about 5 days for tirzepatide3, and about 39 hours for orforglipron (Foundayo)4.
Only a small share of each semaglutide tablet reaches the blood, so the estimate counts it differently from a weekly injection. Foundayo tablets count in full, as injections do.
The estimate doesn't know your body, your other medicines or your lab results. Use it to see your doses over time, not to decide one. Talk to your prescriber before changing your dose.
Sources
Label sources last checked on October 2, 2026. Onederland summarizes them; your prescriber and the full prescribing information come first.
Questions
No. It's an estimate from the doses you log and each medicine's published half-life. Only a lab test measures what's in your blood.
Your estimate is highest right after each dose and lowest just before the next. 100% marks your average level once you've been on the same dose for a few weeks.
Yes. Log each daily tablet and the estimate follows your daily doses, using oral semaglutide's published half-life.
It keeps fading until your next logged dose, and the chart marks the skip so you can see the gap. Talk to your prescriber about missed doses.
From each medicine's prescribing information and published trial results. In the app, Settings, Sources and disclaimers lists them with links.
No. It describes the doses you've logged. Your prescriber decides your dose.
GLP-1 dose tracker
Two taps to log your dose when it's due, reminders on dose days and a history you can fix.
Read moreFree GLP-1 tracker
Doses, the estimate, Apple Health and reports, with no time limit.
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A PDF for any visit, or a CSV of your doses, weights, food, activity and sleep.
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