GLP-1 tracker
You are getting oriented.
Reference and calculator, not medical advice. Dosing figures below are transcribed from FDA-approved prescribing information and link back to it. Last reviewed August 2026.
This site does not have an app, and there is no login here to store anything in. What it does have is the arithmetic that tracking apps mostly exist to wrap, available without an account and without handing anyone a record of your medication use.
mg → syringe units converter
U-100 syringe. Formula: (dose ÷ concentration) × 100.
Check the concentration printed on the vial you are actually holding. The same dose in milligrams is a completely different mark on the syringe at a different concentration. If the number here does not match what your prescriber told you, trust your prescriber.
If you do want to keep a record, the fields that actually matter are shorter than most apps suggest: the date of each injection, the dose in milligrams, the concentration of the vial it came from, and anything you noticed in the days after. That last column is the one that turns into a useful conversation with a prescriber; the rest is bookkeeping a note on your phone handles.
Zepbound titration schedule
Tirzepatide · once weekly · subcutaneous injection · as published in the prescribing information
| Step | Dose | Notes |
|---|---|---|
| Weeks 1–4 | 2.5 mg | Starting dose — not intended for weight loss effect |
| Weeks 5–8 | 5 mg | — |
| Weeks 9–12 | 7.5 mg | — |
| Weeks 13–16 | 10 mg | — |
| Weeks 17–20 | 12.5 mg | — |
| Week 21+ | 15 mg | Maximum dose |
This is the labelled default. Holding at a step longer than shown is common practice and is a decision for your prescriber. Transcribed from the Zepbound prescribing information (label revised 6 May 2026); checked against that label on 7 August 2026.
One reason to think about where that record lives: what you are logging is a prescription medication and a set of symptoms. That is health data. An app that syncs it somewhere is making a decision about it on your behalf, and a paper note is not a worse tracker for being offline.
Common questions
- What should I actually write down?
- Date, dose in mg, vial concentration, injection site, and anything unusual in the following days. Five fields covers what a prescriber will ask about.
- Do I need to track weight daily?
- A question for your prescriber and your own temperament. Daily weight is noisy enough that many people find weekly more informative and considerably less stressful.
- Will this site add an app?
- No plans. The calculators run in your browser and send nothing anywhere, which is a deliberate design choice rather than a missing feature.
Sources and last review
Every dosing figure on this page is transcribed from an FDA-approved label and links back to it. Conversions are arithmetic you can repeat by hand. Nothing here is reviewed by a clinician, and this site does not employ one — which is exactly why what I do publish stays traceable to its source.
- Zepbound (Tirzepatide) prescribing information — Eli Lilly, label revised 6 May 2026, checked 7 August 2026
Transcribed from the labels above and checked by me — Gavin, who builds this site, takes a GLP-1, and is not a clinician. Last reviewed August 2026. Found an error? [email protected] — I treat corrections as bugs. How this site is built and funded.
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