Choosing the right weight loss treatment can feel overwhelming, especially with new options becoming available across the UK. Two of the most talked-about medications right now are Mounjaro and Wegovy—both prescription-only injections that support weight loss in adults with obesity or weight-related health conditions.
At Mayberry Pharmacy, we offer private weight loss services tailored to your individual needs, including access to Mounjaro, which we’ve selected based on its superior performance in clinical studies and real-world results. If you’re trying to understand the difference between Mounjaro vs Wegovy, this guide will help you compare the two and decide which one may be right for you.
Both medications fall under a class of treatments known as GLP-1 receptor agonists, which mimic hormones that help regulate appetite and blood sugar. They work by slowing down digestion, increasing feelings of fullness, and reducing cravings. However, there are key differences between the two that may affect your choice.
Wegovy (semaglutide) is a once-weekly injection that mimics the GLP-1 hormone. It has been widely studied and approved for weight management in the UK for people with a BMI of 30 or above, or 27+ with a weight-related condition.
Mounjaro (tirzepatide) is a newer, dual-action injection that mimics both GLP-1 and GIP hormones. This dual effect appears to provide a stronger appetite-suppressing response and greater metabolic benefits, leading to more significant weight loss for many patients.

Let’s explore the core differences between these two injectable weight loss treatments.
The most notable difference between Mounjaro and Wegovy is the amount of weight loss achieved in clinical trials.
Wegovy users typically lose up to 15% of their body weight over time, when combined with diet and lifestyle changes.
Mounjaro users have reported weight loss of up to 20% or more, especially at higher doses. In head-to-head studies, Mounjaro consistently outperformed semaglutide in helping patients reduce their weight.
This is one of the main reasons we favour Mounjaro at Mayberry Pharmacy. For patients who have struggled with previous medications or need to see more significant results, Mounjaro offers a real opportunity for transformative progress.
Wegovy acts on GLP-1 only.
Mounjaro acts on both GLP-1 and GIP.
This dual hormone mechanism means Mounjaro can reduce appetite more effectively, improve blood sugar levels more consistently, and support energy balance better than single-hormone treatments.
Both medications share similar side effects: nausea, constipation, indigestion, and fatigue in the early weeks. However, these symptoms are typically temporary and reduce as the body adjusts to the dose.
In our experience, most patients tolerate both medications well when supported with professional guidance and dose titration. Our pharmacy team ensures that side effects are managed effectively with simple, practical advice.
Both Wegovy and Mounjaro are taken as weekly injections. Each comes in a pre-filled pen for ease of use.
At Mayberry Pharmacy, we provide full support on how to self-administer the injections, and we tailor your starting dose and titration schedule based on your needs and response.
We recommend Mounjaro for patients who:
Have tried Wegovy or Saxenda without the desired results
Are managing multiple weight-related conditions, such as type 2 diabetes or insulin resistance
Need a stronger appetite suppressant due to ongoing cravings or binge eating
Want to see significant, sustained weight loss under medical supervision
Our pharmacists will carry out a full assessment to ensure that Mounjaro is suitable and safe for your circumstances. We always prioritise personalised care, rather than a one-size-fits-all approach.

Wegovy is available through the NHS for patients who meet strict eligibility criteria, often involving a referral through a tiered weight management programme. However, access is limited, and waiting lists can be long.
Mounjaro is currently not available through the NHS for weight loss, but Mayberry Pharmacy offers it privately through our safe, pharmacy-led programme. That means you can start sooner, with the support of a qualified team.
We don’t just provide prescriptions. We provide support, education, and follow-up, giving you the best chance of lasting success. Our weight loss injection service includes:
Initial health and eligibility assessment
Private prescribing of Mounjaro or other suitable options
Guidance on nutrition, portion control, and lifestyle
Regular check-ins to monitor progress and adjust doses if needed
So, Mounjaro vs Wegovy—which is better? Both have their place in medical weight loss, but based on clinical performance, we believe Mounjaro offers the most effective solution for the majority of our patients.
If you’re considering prescription support to manage your weight and want expert guidance, get in touch with Mayberry Pharmacy today. Our trusted, local team will help you choose the right path to a healthier you.
Visit one of our clinics to book your consultation now and start your journey with Mounjaro in safe, professional hands.
This blog was written on behalf of Mayberry Pharmacy by Pharmacy Mentor.