Semaglutide or Tirzepatide
Compounded GLP-1 Tracker
Compounded GLP-1s are semaglutide or tirzepatide prepared by compounding pharmacies rather than as the brand-name, FDA-approved Ozempic, Wegovy, Mounjaro, or Zepbound. They typically arrive as a lyophilized powder or a multi-dose vial that you reconstitute and draw up yourself, often dosed in insulin units rather than a pre-set pen click. That hands-on setup is exactly where a careful tracker earns its keep.
The catch with compounded vials is that the math is on you: reconstitution volume, concentration, and the units-to-mg conversion all have to be right, every single draw. Myo is built for this with a reconstitution calculator and unit-to-mg conversion, plus beyond-use-date and vial-longevity tracking so you know how long your vial is good and how many doses are left in it.
Compounded users tend to be the most self-directed - and the most exposed to muscle loss when a deep, low-cost cut runs long with no clinical guardrails. Myo's muscle-first design keeps protein, training, and a fat-vs-muscle body-composition trend beside your dose log, so going the compounded route doesn't mean flying blind on lean mass.
Compounded GLP-1 at a glance
- Drug class
- GLP-1 / dual GIP-GLP-1 receptor agonist
- Active molecule
- Compounded semaglutide or tirzepatide
- Source
- Compounding pharmacy (not FDA-approved product)
- Form
- Reconstituted vial, typically dosed in units
- Injection frequency
- Usually once weekly (subcutaneous)
- Half-life
- ~7 days semaglutide / ~5 days tirzepatide
What Myo tracks for Compounded GLP-1
- Reconstitution volume, concentration, and units-to-mg per draw
- Beyond-use date and how many doses remain in the current vial
- Each weekly dose in both units and mg so the record is unambiguous
- Injection-site rotation and any site reactions from self-drawing
- Protein, training, and fat-vs-muscle trend on a self-directed cut
Side effects worth logging
Logging symptoms against your dose timing helps you and your prescriber spot patterns. Commonly reported Compounded GLP-1 side effects include:
- Nausea, common when starting or stepping up
- Diarrhea or constipation
- Vomiting and decreased appetite
- Indigestion, reflux, or bloating
- Fatigue
- Injection-site redness, irritation, or lumps from manual draws
Free Compounded GLP-1 calculators
Peptide & GLP-1 Reconstitution Calculator
Turn a vial of powder plus bacteriostatic water into a concentration, a dose volume, and exact insulin-syringe units.
Open the toolVial Longevity & Runout Calculator
See how many doses and weeks a vial lasts, when it runs out, and optional cost per week.
Open the toolBeyond-Use & Storage Date Calculator
Work out your discard-by date and days remaining from the beyond-use period on your pharmacy label.
Open the toolCompounded GLP-1 guides
Compounded GLP-1 tracking FAQ
Why does compounded GLP-1 need different tracking than a pen?
A brand pen meters its own dose; a compounded vial doesn't. You reconstitute powder, work out the concentration, and convert units to mg yourself - so Myo includes a reconstitution calculator and unit-to-mg conversion to keep every draw accurate and recorded.
Can Myo tell me when my compounded vial expires?
Yes. Myo's beyond-use-date and vial-longevity tracking estimate how long a reconstituted vial stays usable and how many doses are left, so you replace it on time instead of guessing - and you keep a record of when each vial was opened.
Is compounded GLP-1 the same as the brand version?
The active molecule is semaglutide or tirzepatide, but compounded products are not the FDA-approved branded medications and can differ in formulation and concentration. That's a conversation for your prescriber and pharmacy; Myo's role is to track exactly what you're drawing and injecting.
Does going compounded raise my muscle-loss risk?
Not from the molecule itself, but compounded routes are often longer, cheaper, and more self-directed, which makes it easy to under-eat protein and skip training over time. Myo's muscle-first metrics are there precisely so a self-managed cut doesn't quietly cost you lean mass. Always involve a prescriber in the medical side.
Track Compounded GLP-1 the muscle-first way
Log every dose, protect your lean mass, and see whether you're losing fat or muscle.