Tirzepatide
Tirzepatide Tracker
Tirzepatide is the dual GIP and GLP-1 receptor agonist sold as Mounjaro and Zepbound. Activating two incretin pathways instead of one is what gives it its reputation for strong appetite suppression and weight-loss results, and it's also why people titrate carefully through 2.5 mg, 5 mg, and upward. Myo gives tirzepatide a dedicated timeline so every step-up is recorded with its date and strength.
With a half-life of roughly five days, tirzepatide is dosed once weekly and reaches steady state after a few weeks at a given dose. That cadence makes a clean log valuable: when you note nausea, fatigue, or a stalled week, you can line it up against exactly where you were in the dose cycle rather than guessing.
Aggressive fat loss is exactly when muscle is most at risk, and that's Myo's whole reason for existing. Next to your tirzepatide log, Myo keeps protein targets and resistance-training streaks front and center and trends your body composition - so the weight coming off is the weight you want gone.
Tirzepatide at a glance
- Drug class
- Dual GIP/GLP-1 receptor agonist
- Active molecule
- Tirzepatide
- Maker
- Eli Lilly
- Brand names
- Mounjaro, Zepbound
- Injection frequency
- Once weekly (subcutaneous)
- Half-life
- Approximately 5 days
What Myo tracks for Tirzepatide
- Each weekly dose and step-up through the 2.5 / 5 / 7.5 mg+ ladder
- Injection-site rotation across abdomen, thigh, and upper arm
- Position on the ~5-day dose curve when symptoms or stalls show up
- Daily protein and training volume to guard lean mass during fast loss
- Fat-vs-muscle body-composition trend instead of scale weight alone
Side effects worth logging
Logging symptoms against your dose timing helps you and your prescriber spot patterns. Commonly reported Tirzepatide side effects include:
- Nausea, most common during dose increases
- Diarrhea or constipation
- Vomiting and decreased appetite
- Indigestion, bloating, or abdominal discomfort
- Fatigue
- Injection-site reactions
Free Tirzepatide calculators
GLP-1 Dose Converter (mg, mL, units)
Convert between milligrams, millilitres, and insulin-syringe units for a known vial concentration, with an mg to mcg helper.
Open the toolGLP-1 Titration Schedule Planner
Build a dated, fully editable titration schedule from a start date and your own dose steps.
Open the toolProtein Target Calculator (GLP-1)
Get a daily protein target and a per-meal split tuned to protect muscle while you lose weight on a GLP-1.
Open the toolTirzepatide guides
Tirzepatide tracking FAQ
Is tirzepatide the same as semaglutide for tracking purposes?
No - tirzepatide hits two receptors (GIP and GLP-1) where semaglutide hits one, the dose ladder runs in different mg increments, and the half-life is around five days versus seven. Myo keeps them as separate molecules so your history and dose-curve view stay accurate to whichever you're on.
How does Myo handle a Mounjaro-to-Zepbound switch?
Both are tirzepatide, so Myo treats them as one continuous molecule timeline. You log the brand change for your own records, and your accumulated dose history and side-effect notes carry straight across.
Why track injection sites on tirzepatide?
Rotating sites helps avoid repeated irritation or lumps at one spot, and over months it's easy to lose track of where you last injected. Myo's site map shows your recent pattern at a glance so you can keep the rotation honest.
Can Myo help me keep muscle while losing weight fast on tirzepatide?
Tirzepatide's strong appetite suppression makes it easy to under-eat protein and skip the gym, which is how lean mass slips away. Myo surfaces your protein and training trends alongside the medication so you can act before the loss compounds. It's a tracker, not medical advice - loop in your prescriber for the clinical side.
Track Tirzepatide the muscle-first way
Log every dose, protect your lean mass, and see whether you're losing fat or muscle.