GLP-1
Zepbound tracker
Zepbound is a weekly shot with six strengths, and the weeks blur together fast. PeptideLab keeps the record for you: which strength, which day, which site, how much you weighed, and how you felt afterward.
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- Medication
- Tirzepatide, once weekly, under the skin
- Dose steps in PeptideLab
- 2.5, 5, 7.5, 10, 12.5 and 15 mg
- Pen
- Single-dose pens, counted as supply
- Half-life
- About 5 days
- Compare with
- SURMOUNT-1 trial arms (5, 10 and 15 mg)

How PeptideLab tracks Zepbound
Weight, side effects and a daily check-in
Weight is tracked from the first dose, alongside nausea, appetite, sleep and energy, so you can see how each change in dose lines up with how you feel.
Step-ups without guesswork
Your current strength and the date of the next step are always on the protocol. On the day it is due, the log sheet offers it.
How much is in your system
From the doses you log and tirzepatide's published half-life (about 5 days), PeptideLab draws an estimate of your level over time: where it is now, whether it is rising or falling, and when a steady weekly pattern is reached.
What if (Pro)
Try a different dose or schedule on the chart before you change anything, and see the new peak and low the curve would reach.
Injection site rotation
Every shot lands on a body map. The next site is suggested from the ones you used last, across every protocol you run.
Food and water, if you want them
Log meals and water in the same app as your shots, so a low-appetite week and the dose behind it sit side by side.
Questions
Can I switch from Mounjaro to Zepbound in PeptideLab?
Yes. Start a Zepbound protocol and your Mounjaro history stays where it is, so the record shows exactly when you switched.
Does PeptideLab work for Zepbound on Android?
Yes. PeptideLab runs on iPhone, iPad and Android with the same features.
Does PeptideLab tell me what dose of Zepbound to take?
No. You enter the dose you and your clinician decided on, and PeptideLab keeps the record. It is a tracking tool and does not give medical advice.
Where is my data stored?
On your phone first. Cloud backup is optional, there are no ads, and PeptideLab never sells data. You can export everything as CSV at any time, free.
Related
Free to start on iPhone and Android
No account needed to try it. Your data stays on your phone unless you turn on backup.