Once a Week: How the Injection Schedule Works
Both Mounjaro and Wegovy are designed as once-weekly injectable medicines. Choosing a consistent day — for example, every Monday morning or every Friday evening — helps keep the medicine's level in your body steady and makes it easier to build the injection into your weekly routine.
Why consistency matters
Taking your injection on roughly the same day each week is generally recommended by prescribers because these medicines work on a weekly cycle. Drifting significantly from your usual day is worth discussing with your prescriber or doctor if it happens, rather than guessing how to adjust.
How the dose progresses over time
Most people begin on a lower dose that is gradually adjusted over a period of months — a process sometimes called titration. The pace and timing of any dose change is decided entirely by your prescriber based on how you are responding and tolerating the medicine. It is not something to alter on your own. For a closer look at how the Mounjaro injection schedule works specifically, including pen strengths and titration stages, that page covers the detail in full.
What if you miss a scheduled injection?
If you miss a dose, the right course of action depends on how much time has passed and your individual circumstances. Your prescriber or doctor — or the patient information leaflet that came with your pen — is the best source of guidance here. The general principle is that dose decisions, including what to do after a missed injection, belong with your prescriber, not with a general information source. If you have a condition such as heart disease and are wondering whether these medicines are suitable for you, see the page on weight loss injections and heart failure for informational context.
For a broader overview of how these medicines are used and managed, the weight loss injections guide covers the full picture.
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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How GLP Trackr Helps You Stay on Top of Your Weekly Schedule
Remembering which day you injected, which site you used last, and where you are in your titration schedule can get surprisingly tricky over weeks and months. GLP Trackr is built specifically for this.
The app's dose reminder feature sends a gentle nudge on your chosen injection day so a dose is never quietly forgotten. When you log each injection, you record the date, dose strength, and the site you used — abdomen, thigh, or upper arm — so there is always a clear history to look back on.
GLP Trackr also tracks your injection site rotation automatically: log where you injected this week and the app will suggest your next site, spreading use evenly across areas to support skin health over the long term.
Because every entry is timestamped and saved, you will always be able to answer your prescriber's question — "when did you last inject, and at what dose?" — with confidence rather than guesswork. That kind of clear record is particularly useful at review appointments.
GLP Trackr is a tracking and journaling app. It does not provide medical or dosing advice, and is not a substitute for your prescriber's guidance. Always follow your prescriber or doctor's instructions about your injection schedule — they know your full history.
Keep your weekly schedule on track and your injection history in one place — download GLP Trackr free on the App Store or Google Play and explore it with a 7-day free trial.
What does glptrackr include?
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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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The first AI built exclusively for GLP-1 weight loss. Every insight, every meal plan, every prediction trained on one thing only: helping you get the most out of your medication.
Knows Your Cycle
GLPIQ tracks where you are in your injection cycle and adjusts everything around it: lighter meals on nausea days, higher protein when appetite returns, and smarter targets as your medication level shifts.
Predicts Before You Feel It
GLPIQ learns your personal side effect patterns over time. After a few cycles, it starts warning you the morning before a rough day — and adjusts your meal plan automatically.
Finds Your Golden Dose
GLPIQ analyses every dose you've been on: weight loss rate, side effects, food noise, mood, protein adherence and tells you which dose gave you the best results. No other app does this.
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Frequently asked questions.
Both Mounjaro (tirzepatide) and Wegovy (semaglutide) are taken once a week, on the same chosen day each week. Your prescriber sets your schedule and any changes to it should always be discussed with them.
Keeping a consistent weekly injection day is generally recommended to maintain a steady level of the medicine. If you need to shift your day occasionally, speak to your prescriber or doctor rather than adjusting independently.
Missed dose decisions depend on individual circumstances and how much time has passed. The patient information leaflet that came with your pen and your prescriber or doctor are the right sources of guidance — not a general information page.
No. These medicines are designed and prescribed as once-weekly injections. Changing the frequency or dose without your prescriber's guidance is not recommended and could affect how well you tolerate the medicine.
GLP Trackr includes a dose reminder that prompts you on your chosen injection day, plus a full log of past injections with dates, doses, and sites — so your schedule is always clear without relying on memory.