How the Mounjaro Dose Schedule Generally Works
Mounjaro (tirzepatide) is a once-weekly injectable medicine that acts on both GLP-1 and GIP receptors — pathways involved in appetite regulation and blood-sugar control. According to the electronic Medicines Compendium (eMC), Mounjaro is available in several dose strengths: 2.5 mg, 5 mg, 7.5 mg, 10 mg, 12.5 mg, and 15 mg, supplied as pre-filled pens.
Why treatment starts at 2.5 mg
The 2.5 mg starting dose is used to reduce the likelihood of gastrointestinal side effects — such as nausea or digestive discomfort — that can be more pronounced when a higher dose is introduced straight away. Starting low and progressing gradually is standard practice with this class of medicine, though exactly how and when a dose is adjusted is an individual clinical decision made by your prescriber.
What comes after the starting dose
After a period at 2.5 mg, your prescriber may consider moving to a higher strength — commonly 5 mg — and potentially onward through 7.5 mg and beyond. The pace and pattern of this titration is tailored to you by your prescriber; it is not something to adjust independently. If you have questions about where you are in your schedule or whether a change is appropriate, your prescriber or doctor is the right person to ask.
For more detail on what the 2.5 mg pen device itself looks like and how it is handled, see the Mounjaro 2.5 mg pen guide. If you are looking ahead and want to understand the journey at higher strengths, information on Mounjaro 7.5 mg is also available. You can also read about what to expect with weight changes at the 2.5 mg stage.
average weekly weight change in the first 16 weeks of Mounjaro & Wegovy use*
Tracking the right four numbers — weight, waist, protein and dose — turns a noisy chart into a clear story. That's the loop GLP-1 users keep coming back for.
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Tracking Your Mounjaro Doses with GLP Trackr
Keeping an accurate record of each weekly injection is one of the most practical things you can do on a titration schedule — and dose logging is where GLP Trackr is built to help.
Each time you inject, you can log the dose strength, date, and time directly in the app. This means you always have a clear, timestamped record of exactly where you are in your schedule — useful both for your own peace of mind and for conversations with your prescriber at appointments. The app also lets you set a weekly dose reminder, so a missed injection is far less likely as you settle into the routine.
If you do miss a dose, do not attempt to adjust your schedule yourself. Log the missed injection in the app so you have an accurate record, and contact your prescriber or doctor for guidance on how to proceed. Dose decisions — including what to do after a missed injection — should always be made with professional support, never independently.
For a broader look at how the full titration journey fits together, visit the Mounjaro dosing hub. If you want to track how the 7.5 mg stage compares once you progress, the Mounjaro 7.5 mg overview has further context.
Any side effects you notice — particularly in the early weeks — can also be logged in GLP Trackr alongside your dose entries, giving you a clear picture to share with your prescriber. Always follow the guidance of your prescriber or doctor; if you experience symptoms that are severe, persistent, or worrying, contact a healthcare professional promptly rather than waiting for your next appointment.
Ready to keep your weekly schedule on track? Log your doses, set reminders, and build a clear record of your journey — GLP Trackr is free to try for 7 days on the App Store and Google Play.
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Morning Check-In
Start every day with a 60-second wellness check-in. Log how you're feeling, track nausea, appetite, energy, and mood — giving you and your care team a complete picture of how your medication is working.
Injection Tracking
Log every dose with a single tap. Track your dose history, phase in your cycle, estimated medication levels, and upcoming injection dates — with reminders so you never miss a scheduled shot.
Hydration Reminders
Staying hydrated is especially important on GLP-1 medications. Set daily water targets, log intake throughout the day, and receive smart nudges when you're falling behind your goal.
Smart Meal Planning
Personalized meal plans built around your current dose phase and side effects. Every meal is GLP-1 optimized — high in protein, gentle on the stomach, and scaled to your reduced appetite.
Recipe Library
Browse 50+ high-protein, GLP-1-friendly recipes filtered by meal type, prep time, and dietary needs. Every recipe includes full nutrition info, step-by-step instructions, and tips for eating with side effects.
Progress Analytics
Beautiful, easy-to-read charts show your weight loss trajectory, weekly nutrition trends, medication responses, and wellbeing scores over time — turning raw data into genuine insights.
AI Meal Scanning
Snap a photo of any meal and get a full nutrition breakdown in seconds — calories, protein, carbs, fat, and fibre. No searching. No manual logging. Just point, snap, and track.
Exercise & Steps
Log walks, workouts, and movement with activity targets that flex with your energy levels. On lower-energy dose days, gentler targets keep you moving without burning out.
Community Support
Connect with thousands of others navigating the same medication journey. Share milestones, ask questions, find accountability partners, and get support from people who truly understand.
Never Forget a Dose Again.
Log your Mounjaro or Wegovy injection in seconds. Track your pen, your dose level, and your injection site — so you always know exactly where you are in your treatment.
Watch Your Body Transform, Week by Week.
Log your weight, measurements, and how you're feeling after each dose. GLPTrackr turns your data into clear, motivating charts that show you how far you've really come.
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Frequently asked questions.
Mounjaro 2.5 mg is the introductory starting dose of tirzepatide, used to allow the body to adjust to the medicine before any dose change is considered. It is a prescription-only medicine; suitability and dosing decisions are made by your prescriber or doctor.
The duration at 2.5 mg before any change is an individual clinical decision made by your prescriber — there is no single universal timeline. Never adjust your dose without discussing it with your prescriber or doctor first.
Mounjaro (tirzepatide) is available in 2.5 mg, 5 mg, 7.5 mg, 10 mg, 12.5 mg, and 15 mg pre-filled pens. Which strengths are used, and in what order, is determined by your prescriber based on your individual circumstances.
If you miss a dose, contact your prescriber or doctor for guidance rather than adjusting your schedule yourself. You can log the missed injection in GLP Trackr to keep an accurate record to discuss at your next appointment.
GLP Trackr lets you log each weekly injection with the dose strength, date, and time, and set reminders so you do not miss a dose. It creates a clear record you can refer to and share with your prescriber — it does not replace their clinical guidance.