Semaglutide tracking, week by week
Whether it is a pen or a compounded vial, the tracking problem is the same: what did you take, when, and what happened next. TrackPep records all three and does the vial maths for you.
- 16
- Languages
- 10
- Free calculators
- 3
- Platforms: web, iOS, Android
Everything a Semaglutide log actually needs
Six tools that work together, so your doses, vials, and results live in one record instead of four apps.
Inventory
Track vials, BAC water, expiration & remaining doses. Never run out mid-protocol.
Reconstitution calculator
Math you can trust. Convert mg per vial → syringe units in milliseconds.
Body-map injections
Rotate sites visually. Reduce lipohypertrophy with a calendar-aware map.
Side-effect log
Log symptoms with severity. Spot patterns across compounds & dose changes.
Weight & hydration
Beautiful trendlines that smooth daily noise. Goal-aware, never judgemental.
Privacy controls
Export your records, delete your account, and keep sensitive logs out of ads.
Run the Semaglutide maths right now
This is the real calculator from the app, not a screenshot. Change the numbers and the chart changes with them — no account needed.
Your schedule
Half-life: 6.9 d · Time to peak: 24 h
FDA prescribing information for Ozempic/Wegovy: terminal half-life ≈ 1 week (~165 h); Tmax 1–3 days after subcutaneous dosing.
Estimated amount in system
Relative active amount from your dose, summed across repeated doses. The dashed line is the steady-state average.
- Steady-state peak
- 1.81 mg
- Steady-state trough
- 1 mg
- Accumulation factor
- 1.98×
- Time to steady state
- 34.4 d
- Time to clear
- 34.4 d
- Peak to trough drop
- 45%
Estimates only. Values are relative amounts, not plasma concentrations.
Questions
- Is TrackPep free?
- Yes. The free plan covers up to three active compounds with 30 days of history, and every calculator on the site is free without an account. Pro adds unlimited compounds and full history.
- Does TrackPep give Semaglutide dosing advice?
- No, and it never will. TrackPep is a record-keeping and education tool: you enter what you were prescribed, and it keeps the log, the maths, and the reminders straight. Dosing decisions belong with your prescriber.
- Can I track compounded semaglutide as well as branded pens?
- Yes. Enter your vial strength and the bacteriostatic water you added and TrackPep converts your dose into syringe units; pens can be logged directly in milligrams.
Related calculators
Your Semaglutide log, in one place.
One account across web, iOS, and Android. Export your data whenever you want, delete it whenever you want.
TrackPep is an informational record-keeping tool. It does not diagnose or treat any condition, does not recommend doses, and is not a substitute for advice from a licensed clinician. Compound data shown in the calculators is a population estimate from published literature.