Brand Name, Real Name, and Chemical Name: What Each Term Means
When a medicine reaches patients, it typically carries two identities: a brand name chosen by the manufacturer, and a non-proprietary (generic) name that describes the active substance itself. For Mounjaro, these are:
- Brand name: Mounjaro — the commercial name under which Eli Lilly markets the medicine.
- Active substance / real name: tirzepatide — the scientific name for the molecule. This is the name you will find in the patient information leaflet, in clinical literature, and on prescriptions written by generic name.
Tirzepatide is a dual GIP and GLP-1 receptor agonist. In plain terms, it acts on two appetite-regulating pathways in the body — the glucose-dependent insulinotropic polypeptide (GIP) receptor and the glucagon-like peptide-1 (GLP-1) receptor. This dual-action mechanism is what distinguishes it from GLP-1-only medicines. For a closer look at Mounjaro's drug name and classification, including how tirzepatide fits into wider medicine categories, that page goes into more detail.
You may also come across the term Wegovy in the same conversations. Wegovy is a separate brand with its own active substance — semaglutide — and its own chemical identity. If you are curious about how Wegovy differs as an alternative, the comparison is worth reading alongside this page. The medical name for Mounjaro — tirzepatide — is explored in further depth there, including how prescribers and pharmacists use it.
A useful way to think about it: tirzepatide is to Mounjaro what paracetamol is to a branded pain-relief tablet. The brand name is what appears on the box; the active substance name is the medicine itself.
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 Tirzepatide Journey with GLP Trackr
Knowing the correct name of your medicine — both brand and active substance — is practically useful, particularly when logging doses, discussing your treatment with a prescriber, or reviewing your own records over time. GLP Trackr is built specifically for people already taking Mounjaro or Wegovy, and dose logging sits at the heart of it: you can record each injection, the dose strength, the date, and the time, so your treatment history is always clear and ready to share at your next appointment.
Alongside dose logging, GLP Trackr's insights and analytics tools help you connect the dots between your weekly injections and how you are feeling — weight trends, energy, side effects, and more. And if you ever want a structured summary to bring to your prescriber, the doctor report feature pulls your tracked data into a clear overview, using the correct medicine and dose information you have logged.
GLP Trackr covers the full picture: everything about managing your Mounjaro journey is brought together on our main hub, with guides on injection sites, side-effect patterns, food logging, and progress tracking.
Always follow your prescriber or doctor's guidance on your treatment — they have your full medical history and are the right person to answer any questions about your prescription, the medicine's name on your records, or anything clinical.
Ready to keep a clear, organised record of your tirzepatide treatment? GLP Trackr is free to try for 7 days — available now 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.
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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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Frequently asked questions.
Mounjaro's real (active substance) name is tirzepatide. Mounjaro is the brand name given by the manufacturer; tirzepatide is the scientific name for the medicine itself and is the name you will typically see in the patient information leaflet and on generic prescriptions.
The active substance in Mounjaro is tirzepatide, a dual GIP and GLP-1 receptor agonist. Tirzepatide is both the non-proprietary (generic) name and the chemical compound name used in clinical and regulatory documentation.
Wegovy's active substance is semaglutide, a GLP-1 receptor agonist. Wegovy is the brand name; semaglutide is the non-proprietary name. It is a different molecule from tirzepatide, the active substance in Mounjaro.
Prescribers sometimes write prescriptions using the non-proprietary (generic) active substance name rather than the brand name. Tirzepatide and Mounjaro refer to the same medicine. If you have any questions about your prescription wording, your prescriber or pharmacist can confirm the details.
Yes. GLP Trackr is built specifically for people already taking Mounjaro (tirzepatide) or Wegovy (semaglutide). You can log each dose, track injection sites, record side effects, and monitor progress — all in one place.