Tirzepatide
Zepbound Tracker
Zepbound is Eli Lilly's tirzepatide approved for chronic weight management, titrated once weekly from 2.5 mg through 5, 7.5, 10, 12.5, and up to 15 mg. As a dual GIP/GLP-1 agonist aimed squarely at weight loss, it offers a wide dose range and a long runway of step-ups, which makes a precise log essential for knowing exactly where you are. Myo charts your Zepbound ladder so no step-up date gets lost.
Zepbound shares its molecule with Mounjaro but carries the obesity indication and the room to climb to 15 mg, so courses tend to run long and deep. With tirzepatide's roughly five-day half-life, you reach steady levels within weeks of each step, and Myo's dose curve helps you connect how you feel to where you sit in that cycle.
The deeper the cut, the more muscle is on the line - and that's the entire premise of Myo. Beside your Zepbound log it keeps protein targets, resistance-training consistency, and a fat-vs-muscle body-composition view, so you arrive at your goal weight strong rather than just smaller.
Zepbound at a glance
- Drug class
- Dual GIP/GLP-1 receptor agonist
- Active molecule
- Tirzepatide
- Maker
- Eli Lilly
- FDA indication
- Chronic weight management
- Typical dosing
- 2.5-15 mg once weekly
- Half-life
- Approximately 5 days
What Myo tracks for Zepbound
- Your rung on the 2.5 -> 15 mg dose ladder and each step-up date
- Weekly timing against tirzepatide's ~5-day pharmacokinetic curve
- Injection-site rotation across a long weight-management course
- Protein and training adherence to defend muscle on a deep cut
- Fat-vs-muscle body-composition trend, not just total scale weight
Side effects worth logging
Logging symptoms against your dose timing helps you and your prescriber spot patterns. Commonly reported Zepbound side effects include:
- Nausea, most common during step-ups
- Diarrhea or constipation
- Vomiting and reduced appetite
- Bloating, indigestion, or abdominal discomfort
- Fatigue
- Injection-site reactions
Free Zepbound calculators
GLP-1 Titration Schedule Planner
Build a dated, fully editable titration schedule from a start date and your own dose steps.
Open the toolMuscle Loss Risk Estimator
See how much of your planned weight loss could come from muscle, and how much protein plus lifting may protect.
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 toolZepbound guides
Zepbound tracking FAQ
What's the difference between tracking Zepbound and Mounjaro?
Both deliver tirzepatide, but Zepbound is labeled for weight management and Mounjaro for type 2 diabetes. The molecule and dosing ladder are the same up to 15 mg, so Myo keeps one tirzepatide timeline while letting you record which product you're prescribed.
How does Myo handle Zepbound's long titration ladder?
Zepbound climbs through six dose levels, which is a lot to track from memory. Myo logs each step with its date and shows your position on the ladder, so you and your prescriber can always see your full escalation history at a glance.
Does Zepbound's dual mechanism change how I should track?
The GIP/GLP-1 dual action tends to suppress appetite strongly, which makes hitting protein targets harder - exactly the metric Myo keeps in front of you. Tracking protein and training closely matters more, not less, on a drug this effective at killing hunger.
Can Myo help me preserve muscle on high-dose Zepbound?
Yes. At higher doses the appetite suppression is strong enough that under-eating protein is the default failure mode, and that's where muscle goes. Myo surfaces your protein and training trends next to your dose so you can correct early. It informs your decisions; your prescriber makes the clinical calls.
Track Zepbound the muscle-first way
Log every dose, protect your lean mass, and see whether you're losing fat or muscle.