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Wegovy has trialed a new 7.2mg dose that delivers similar weight loss to Mounjaro, while keeping treatment costs down.
Almost. Both Wegovy and Mounjaro work by targeting GLP-1 receptors, which help reduce appetite and cravings, leading to significant weight loss when used consistently alongside lifestyle changes.
Mounjaro has shown average weight loss of around 21.5% in clinical trials. However, newer clinical data from recent trials using Wegovy’s updated 7.2mg dosage also show an average weight loss of around 20.7%—putting it on par with Mounjaro in terms of effectiveness.
Wegovy and Mounjaro are very similar in how they work. Both are once-weekly injections that activate GLP-1 receptors to help reduce appetite and support weight loss. Because of this shared mechanism, they also have very similar side effect profiles.
Where they differ is in their active ingredients—Wegovy contains semaglutide (also used in Ozempic), while Mounjaro contains tirzepatide.
Wegovy has also been available longer, with a more established patient track record. It’s been studied in over 25,000 patients and used by more than 8 million people worldwide over the past 8 years.
Wegovy has been on the market longer—it was first approved in the U.S. in 2021, compared to Mounjaro’s 2023 approval. At Voy, Wegovy is offered at one of the most competitive prices in the UK, backed by clinical support and health coaching.
Wegovy is the only GLP-1 weight loss medication currently proven to reduce major cardiovascular risks. In a large SELECT trial involving over 17,000 participants, Wegovy reduced the risk of major adverse heart or cardiovascular events by 20%. Mounjaro has not yet shown this benefit in clinical trials.
Mounjaro, which contains the active ingredient Tirzepatide, is a clinically proven medication designed to support weight loss.
It works by mimicking two natural gut hormones, GLP-1 and GIP, which help control appetite, hunger and feelings of fullness. By slowing digestion, reducing food noise, Mounjaro helps you lose weight when combined with a healthy diet and regular exercise.
Mounjaro (tirzepatide) is proven to support long-term weight loss, with studies suggesting it is one of the most effective medications available. A 36-week clinical trial involving 783 patients across four countries demonstrated an average weight loss of over 20% of their body weight. An additional 88-week clinical trial involving 806 patients showed an average weight loss of over 25% of their body weight. All patients received lifestyle and physical activity counseling and followed a reduced-calorie diet during the trials.
Mounjaro has been rigorously tested by regulatory authorities in the UK. It is licensed by the government's MHRA (Medicines and Healthcare Products Regulatory Agency) and is currently being trialed by the NHS for a select group of participants with a BMI over 40 and three separate health conditions. Because Mounjaro contributes to weight loss, the long-term effects of the medication are largely positive, as it can help you lead a healthier lifestyle. Some of the long-term effects of Mounjaro include:
Before using Mounjaro, it’s important to be aware of potential side effects and precautions. Rest assured, any side effects are usually mild and tend to occur when you first start the medication or increase your dose. This happens because your body is adjusting to the medication.
The most common side effects of Mounjaro include:
At Voy, you can contact a prescribing clinician at any time to address any side effects that may arise.
Many people feel reduced appetite in weeks and see noticeable weight loss, typically 2-3kg, in the first month. Full effects build over 12 weeks, kickstarting your weight loss journey.
Based on a clinical study of 57,975 VOY participants in partnership with Imperial College London
https://preprints.jmir.org/preprint/69466/acceptedIncluded in every plan to help you succeed.
Experiencing side effects or have questions? Our prescribing clinicians are here to support you.
Work 1:1 with your coach to address lifestyle changes and get ready for life after medication.
Stay motivated with your personal app—track your progress, monitor results, and more.
It can take up to 8-9 weeks to feel the full effects of your medication, but you’ll gradually increase your dose as your body adjusts and your hunger reduces.
Find your optimal dosage and start consistently losing weight. As you get used to the medication, the chances of experiencing side effects should decrease.
You and your coach will chart your course to lasting weight loss, with a plan for maintaining your new healthy habits after completing the medication.
Comparison
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Dr. Earim Chaudry is a highly accomplished digital health doctor with extensive experience in the field of online and telemedicine-based healthcare. Over the years, he has played a pivotal role in shaping the landscape of digital healthcare in the UK.
Anna is a health behaviour change expert and nutritionist with 15 years of experience in coaching. She is the driving force behind the integration of behaviour change psychology into our programme.
At the nutritional helm is Molly Morgan, whose career spans various industries including the NHS, pharmaceutical trials and digital health technology start-ups.
“Our industry leading weight loss experts know that there's more to it than ‘eat less, move more’ - that’s why we chose them to create a programme that tackles the root cause of weight gain, by helping you reset your mind and body.”
With early access to Wegovy’s 7.2mg dose, you’ll get results that are comparable to Mounjaro — at an affordable price.
Prescribed by weight loss experts
“Take our assessment to see whats right for you — we’ll check eligibility and guide your next step”
Mounjaro helps users lose up to 22.5% body weight. With Voy’s early access to 7.2mg, Wegovy can deliver up to 20.7% weight loss.
Voy gives you early access to Wegovy’s 7.2mg dose — helping you lose up to 20.7% of your body weight. Most providers stop at 2.4mg, limiting results to 15%.
Get free, expert support throughout your journey. Our clinical hotline answers in minutes — for side effects, dose questions, or anything else on your mind.
Work 1:1 with your own health coach and use the Voy app to build lasting habits — so you can lose weight now, and keep it off later.
Effective weight loss, with flexible pricing — including a range of more affordable options.
Mounjaro, which contains the active ingredient Tirzepatide, is a clinically proven medication designed to support weight loss.
It works by mimicking two natural gut hormones, GLP-1 and GIP, which help control appetite, hunger and feelings of fullness. By slowing digestion, reducing food noise, Mounjaro helps you lose weight when combined with a healthy diet and regular exercise.
Mounjaro (tirzepatide) is proven to support long-term weight loss, with studies suggesting it is one of the most effective medications available. A 36-week clinical trial involving 783 patients across four countries demonstrated an average weight loss of over 20% of their body weight. An additional 88-week clinical trial involving 806 patients showed an average weight loss of over 25% of their body weight. All patients received lifestyle and physical activity counseling and followed a reduced-calorie diet during the trials.
Mounjaro has been rigorously tested by regulatory authorities in the UK. It is licensed by the government's MHRA (Medicines and Healthcare Products Regulatory Agency) and is currently being trialed by the NHS for a select group of participants with a BMI over 40 and three separate health conditions. Because Mounjaro contributes to weight loss, the long-term effects of the medication are largely positive, as it can help you lead a healthier lifestyle. Some of the long-term effects of Mounjaro include:
Both are powerful, clinically proven treatments for weight loss — and the right option depends on your health history, goals, and how your body responds.
Mounjaro may lead to slightly more weight loss on average, while Wegovy has strong clinical results at higher doses (up to 20.7%) and added benefits like heart health support at a more affordable rate.Our clinical team will help you choose the best fit — based on safety, effectiveness, and what’s right for your journey.Take our quick eligibility quiz to get a personalised recommendation.
Mounjaro currently shows slightly greater average weight loss in clinical trials. But Wegovy — especially at its 7.2mg dose — comes very close.
In recent studies, people using 7.2mg of Wegovy lost an average of 20.7% of their body weight over 72 weeks, with about one in three people losing 25% or more. That’s comparable to results seen with Mounjaro.
Wegovy also comes with other benefits: it supports heart health, doesn’t affect oral contraceptives, and is currently more affordable than Mounjaro.
Since both medications work in similar ways, their side effects are often similar too. If you tolerated Mounjaro well, you’re unlikely to have more side effects when transitioning to Wegovy — especially if your starting dose is equivalent.
Common side effects can include nausea, bloating, constipation, diarrhoea, headaches, or fatigue. These are usually mild and often improve over time. Staying hydrated and eating balanced meals can help.
Our clinical team will help you switch at the safest dose, with ongoing support to manage any side effects if they arise.
94% of customers think this is the best weight loss programme they have tried
Our patients lose 5 times more weight than diet & exercise alone
Average body weight loss when using medication¹
Of members are confident they will keep the weight off for good²
Of patients felt the their overall health had improved after the program²
It can take up to 8-9 weeks to feel the full effects of your medication, but you’ll gradually increase your dose as your body adjusts and your hunger reduces.
Hair loss will have slowed and you might start noticing some growth
You and your coach will chart your course to lasting weight loss, with a plan for maintaining your new healthy habits after completing the medication.