What Is the Mounjaro Equivalent of 1mg Wegovy?

Wegovy and Mounjaro are both once-weekly injectable prescription medicines used for weight management, but they act on the body through different mechanisms. Wegovy contains semaglutide, a GLP-1 receptor agonist. Mounjaro contains tirzepatide, which is a dual GIP and GLP-1 receptor agonist — meaning it activates two separate appetite-regulating pathways rather than one. Because of this fundamental difference, dose strengths across the two medicines are not equivalent in the way that, say, two formulations of the same drug might be.

Wegovy's titration range

Wegovy is typically started at a lower dose and increased by a prescriber over time. The dose strengths commonly associated with its schedule include 0.25mg, 0.5mg, 1mg, 1.7mg, and 2.4mg. The 1mg stage sits in the middle of this progression. How long someone stays at any given stage, and whether they move up, is decided by their prescriber based on individual response and tolerability — not by a fixed timetable.

Mounjaro's titration range

Mounjaro follows its own separate titration pathway, with dose strengths including 2.5mg, 5mg, 7.5mg, 10mg, 12.5mg, and 15mg. The numerical difference in milligrams compared with Wegovy does not reflect a difference in potency in any simple sense — the two medicines are measured on entirely different scales. For more context on one commonly discussed Mounjaro stage, see our page on Mounjaro 5mg and what to expect.

The Wegovy–Mounjaro difference

Because semaglutide and tirzepatide have different mechanisms, different dose schedules, and different clinical profiles, there is no medically established conversion chart that translates one medicine's dose into the other's. Any side-by-side look at the two medicines is informational only. For a broader comparison of how these medicines relate to each other, the page on Wegovy and Mounjaro equivalent doses explores this topic in more detail, and you can also read about Wegovy 1mg specifically or how 5mg Mounjaro compares to Wegovy for further context.

Both medicines carry a black triangle (▼) status in the UK, meaning they are 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).

Whichever medicine you have been prescribed — and at whatever stage you currently are — keeping an accurate log of every dose is one of the most practical things you can do. GLP Trackr's dose logging feature lets you record the date, time, and strength of each injection, so you always have a clear, timestamped history of where you are in your treatment.

This matters especially during titration, when your dose may change over time at your prescriber's direction. Having a precise record means you can bring a clear picture to your next appointment, rather than trying to recall from memory when your last dose was or which strength you are currently on. The app's dose reminders also help ensure a weekly injection is never forgotten — a small but meaningful support for staying consistent.

If you want to track how you are feeling alongside your doses — energy, mood, any side effects — the daily check-in captures that too, building a picture over time that can be genuinely useful to share with your prescriber.

Any decision about your dose, including whether to move between stages or switch medicines, should be made with your prescriber — never on your own. GLP Trackr records your journey; it does not replace the clinical guidance that only your healthcare professional can give.

Start logging your doses and building a record of your journey — GLP Trackr is available free on the App Store and Google Play, with a 7-day free trial to get started.