Tirzepatide
Mounjaro · Zepbound · LY3298176
This is the ingredient in Mounjaro and Zepbound. People use it to feel full sooner and eat less. Do not stack it with semaglutide or retatrutide.
Usual range
2.5–15 mg
Schedule
Once weekly
Half-life
~5 days
How it is used
A weekly shot for hunger and weight, often felt more strongly than semaglutide.
Subcutaneous
Same weekday. Rotate sites.
Ongoing under care. Stay at the lowest effective dose.
How to mix this vial
Typical vial 10 mg · 1 mL BAC
10 mg + 2 mL → 5 mg/mL. 2.5 mg = 50 units. Confirm vial milligrams before mixing.
Fridge. Do not freeze. Branded pens follow label.
Side effects
- Nausea
- Vomiting
- Constipation
- Reflux
- Gallbladder disease
- Muscle loss if under-eating protein
Who should skip this
- MTC / MEN2
- Pregnancy
- Serious GI disease
Nutrition note
Four small protein-forward meals beat two large ones. Stop eating at first fullness. Resistance training is non-negotiable.
Stacks
Often stacked with
Approved drug. Compounded tirzepatide is not Zepbound/Mounjaro.
Peptipedia is an educational calculator, not medical advice. Many catalog entries are unapproved for human use. Approved molecules have labels that outrank this app. Do not use this to self-prescribe. Consult a licensed clinician. Not for anyone under 18, pregnant, or being treated for cancer.