A list to start from
Nausea, vomiting, constipation, stomach pain, heartburn, fatigue, headache, dizziness and more, or add your own.
Side effects
Mark nausea, fatigue or anything else on the day it happened, with how strong it was. Side effects sit on the Calendar next to your doses, weigh-ins and notes, so you can look back on any week before an appointment. If a side effect is severe or does not ease, contact your care team.

A demo profile, Maya, with made-up data.
What you can log
Side effects are part of the record, not a score. Log them in a few taps and look back when you need to.
Nausea, vomiting, constipation, stomach pain, heartburn, fatigue, headache, dizziness and more, or add your own.
Mild, moderate or severe, or no strength at all if you'd rather not say.
Side effects stay on the day you log them for, even when you travel.
The Calendar shows doses, weigh-ins, notes and side effects together, day by day.
Add one the list doesn't have, and it stays in your list for next time.
Add a note to the day for anything a list can't say.
How it works
Tap a day on the Calendar, or use today's check-in on the Onederland tab.
Pick any you felt, then tap one to set how strong it was.
See it on the Calendar beside your doses, weigh-ins and notes.
Questions
Nausea, vomiting, diarrhea, constipation, stomach pain, heartburn, burping, gas or bloating, decreased appetite, fatigue, headache, dizziness, hair loss and injection site reactions, plus any you add yourself.
Yes: mild, moderate or severe. You can also leave the strength out.
If a side effect is severe or does not ease, contact your care team. Onederland keeps a record of what you log; it can't assess symptoms.
No. It records what you log, on the day it happened. Your care team can tell you what to expect from your medicine.
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 moreInjection site notes
A note with every dose, and the sites each label lists.
Read moreReports for your care team
A PDF for any visit, or a CSV of your doses, weights, food, activity and sleep.
Read more