The Mounjaro Dose Strengths Explained
Mounjaro is a dual GIP and GLP-1 receptor agonist, supplied as a pre-filled injection pen. According to the electronic Medicines Compendium (eMC), the available strengths are 2.5 mg, 5 mg, 7.5 mg, 10 mg, 12.5 mg, and 15 mg, each given once a week on the same day each week.
Why titration starts low
Starting at 2.5 mg gives the body time to adjust to the medicine. Many people find that gastrointestinal side effects — such as nausea or stomach discomfort — are most noticeable in the period after a dose increase, and easing in gradually is intended to reduce that impact. Your prescriber decides when, or whether, to move to the next strength; there is no universal timeline that applies to everyone.
Each strength is a fixed step
The steps between strengths are evenly spaced, so moving from one to the next represents a consistent incremental increase. Some people remain on a given strength for longer than others — factors such as tolerability and individual response all influence what your prescriber recommends. For a broader look at how the titration schedule is structured, see the Mounjaro dose schedule overview.
Upper end of the range
Not everyone will reach 15 mg — the highest dose is only used when it has been prescribed as appropriate for that individual. The goal is always the dose that works best for you personally, as determined by your prescriber. If you are curious about how Mounjaro's dosing compares to another GLP-1 medicine, the Wegovy dose stages page covers semaglutide's separate titration steps.
Mounjaro carries the black triangle (▼) designation, meaning it is subject to additional monitoring. Any side effects should be reported to your healthcare professional and to your national reporting scheme (such as the UK's Yellow Card scheme).
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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Keeping Track of Your Mounjaro Doses with GLP Trackr
Knowing the dose strengths is one thing — keeping an accurate record of every injection you take is another. GLP Trackr's dose logging feature lets you record each injection as it happens: the strength, date, and time, all stored in one place so there is never any uncertainty about where you are in your schedule.
Because Mounjaro is taken weekly, it is easy to lose track of exactly when your last injection was or which pen strength you are currently using — especially across a titration period that can span many months. The app's dose reminders help you stay consistent with your weekly schedule, and your logged history gives you a clear record to refer back to or share at a prescriber appointment. You can also use the guide to Mounjaro dosing alongside your logs for wider context.
For a complete reference on how Mounjaro dosing works in practice, the Mounjaro dosing hub brings together everything in one place.
Important: any decision about your current or next dose belongs with your prescriber or doctor — they know your full history and response. GLP Trackr helps you record and organise your journey; it is not a substitute for their guidance. If you have questions about moving to the next strength or managing side effects at a new dose, raise them directly with your healthcare professional.
Ready to keep a clear, organised record of every dose? Download GLP Trackr on the App Store or Google Play and start your free 7-day trial.
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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.
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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.
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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.
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Frequently asked questions.
Mounjaro (tirzepatide) is available in six strengths: 2.5 mg, 5 mg, 7.5 mg, 10 mg, 12.5 mg, and 15 mg. Each is delivered as a once-weekly injection using a pre-filled pen. The starting dose and any increases are determined by your prescriber.
Your prescriber or doctor decides your dose and when to adjust it, based on your individual response and tolerability. Treatment typically starts at 2.5 mg to allow your body to adjust. No dose change should be made without clinical guidance.
No. Not everyone will be prescribed the maximum 15 mg strength. Your prescriber determines the most appropriate dose for you based on how you are responding to treatment and how well you are tolerating each stage.
What to do after a missed dose is a decision for your prescriber or doctor, not something to manage alone. You can log the missed injection in GLP Trackr to keep your record accurate and bring it up with your healthcare professional at your next contact.
GLP Trackr lets you log each injection with the dose strength, date, and time. Dose reminders help you stay consistent with your weekly schedule, and your complete log is available to review or share with your prescriber.