Mounjaro · tirzepatide · weekly injection

Mounjaro tracker for iPhone.

Mounjaro is Eli Lilly's once-weekly tirzepatide injection for type 2 diabetes. GLP Calendar logs each shot and dose step, rotates your injection sites, and puts glucose and HbA1c results next to your doses.

  • Free core tracker
  • Built on the Mounjaro label
  • Never a dose calculator
From the US label

What the Mounjaro label says.

Mounjaro (tirzepatide, Eli Lilly) is FDA-approved for type 2 diabetes, including heart-risk reduction in adults with type 2 diabetes. These are the rules printed in its US prescribing information as of September 2026. Your prescriber decides how they apply to you.

How often
Once a week, any time of day, with or without meals
Dose steps
Starts at 2.5 mg; increases of 2.5 mg after at least 4 weeks if more blood-sugar control is needed; 15 mg maximum (10 mg for children 10 and older)
Missed dose
Take it within 4 days (96 hours); after that, skip it and keep your usual day
Changing your shot day
Allowed if doses stay at least 3 days (72 hours) apart
Where to inject
Abdomen, thigh or back of the upper arm (someone else should inject the arm); rotate each week
Out of the fridge
Single-dose pen or vial: up to 21 days in total at up to 86°F
With insulin or a sulfonylurea
The label warns of a higher risk of low blood sugar; your prescriber may adjust those medicines
Half-life
About 5 days

Source: Mounjaro US prescribing information on DailyMed (revised August 2026).

In the app

How GLP Calendar tracks Mounjaro.

  • Shot-day reminder with a heads-up the day before, plus the label's 4-day window if you run late
  • A body map that suggests the next site and flags that the back of the arm needs a helper
  • Fasting glucose, HbA1c, lipids and kidney markers from your lab PDFs, next to your dose steps
  • Side-effect check-ins tagged by day after your shot and by dose step, so you can see your own pattern
  • Weight as a percentage of your starting weight, with each dose step shaded on the chart
  • Protein, water and fiber targets for the days you barely feel hungry
  • A one-page PDF for your prescriber: doses, weight, symptoms, nutrition, labs and supplements
Daily check-in: nausea, constipation, heartburn, fatigue and headache rated none to severe, plus appetite and food noise.
AI assistant answering a question about nausea after a shot and logging the symptom from the chat.
FAQ

Mounjaro questions, answered.

Are Mounjaro and Zepbound the same medicine?

Both contain tirzepatide made by Eli Lilly. In the US, Mounjaro is approved for type 2 diabetes and Zepbound for weight management and sleep apnea with obesity. GLP Calendar tracks either one.

Can I track my blood sugar labs with Mounjaro?

Yes. Add lab results from a PDF or photo and GLP Calendar shows fasting glucose, HbA1c and other markers on the same timeline as your Mounjaro dose steps.

Does GLP Calendar adjust my Mounjaro dose?

No. It records the dose your prescriber ordered and shows label information. It never suggests, calculates or changes a dose.

Other medications

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Mounjaro® is a registered trademark of Eli Lilly and Company. GLP Calendar is an independent app and is not affiliated with or endorsed by Eli Lilly. GLP Calendar is a tracking and organization tool, not a medical device. It does not recommend, calculate or change doses, and nothing on this site is medical advice. Always follow your prescriber and the medication's label.