Struggling with weight is something many people in the UK experience. While diet and exercise are important, they don’t always give the desired results—especially for those with conditions like obesity or type 2 diabetes. In recent years, weight loss injections have gained popularity as a medical option to support long-term weight management. But with several choices available, the question many ask is: Which injection is most effective for weight loss in the UK?
Understanding Weight Loss Injections
Weight loss injections are medications usually given weekly through a pre-filled pen. They mimic hormones called GLP-1 (Glucagon-Like Peptide-1) that help control appetite and blood sugar levels. These treatments are not magic fixes—they work best alongside a healthy diet and regular exercise.
Two of the most talked-about GLP-1 weight loss injections in the UK today are Wegovy and Mounjaro. Let’s compare them to see which one may be better suited for you.
Wegovy – What Is It?
Wegovy is the brand name for semaglutide, a medication already used under the name Ozempic for type 2 diabetes. It works by making you feel fuller for longer, helping to reduce your calorie intake.
Approved for weight management, Wegovy is now available privately in the UK. It’s taken once a week through an injection and is suitable for adults with a body mass index (BMI) of 30 or more, or 27+ with weight-related health problems like high blood pressure.
- Helps control appetite and cravings
- Shown to help patients lose 15% or more of their body weight
- Suitable for long-term weight loss treatment
Mounjaro – A New Contender
Mounjaro, also known by its generic name tirzepatide, is a newer injectable medication and not yet as widely available in the UK as Wegovy. It’s used for managing type 2 diabetes but is also being looked at as a weight loss treatment. Like Wegovy, it mimics GLP-1, but it also works on another hormone called GIP, which may help improve results.
Early studies show that Mounjaro may help with more weight loss than Wegovy, with some users losing up to 20% of their body weight. However, access in the UK is still limited, and more research is needed to fully confirm its long-term safety for weight loss use.
Mounjaro vs Wegovy: Which One Is More Effective?
While both are effective, here’s a simple comparison:
| Feature | Wegovy (Semaglutide) | Mounjaro (Tirzepatide) |
| Type | GLP-1 | Dual GIP and GLP-1 |
| Weight Loss | Up to 15% or more | Up to 20% or more (studies) |
| Availability in UK | Widely available privately | Limited availability |
| Side Effects | Nausea, diarrhoea, tiredness | Similar, may be stronger |
| Usage | Once-weekly injection | Once-weekly injection |
So, while Mounjaro may offer more significant weight loss results, Wegovy is more easily available in the UK and has a strong record of safe and effective use. The right choice depends on your personal health, lifestyle, and access to the medication.
Are These Injections Safe?
Like any medicine, weight loss injections can come with side effects. The most common are nausea, constipation, diarrhoea, and fatigue, especially at the beginning. It’s important to start with a low dose and increase slowly under medical guidance.
These treatments are not suitable for everyone, especially people with certain medical conditions. That’s why a full consultation with a healthcare professional is necessary before starting any weight loss medication.
Ready to Slim Down Safely? Speak to Our Experts
If you’re looking for an effective weight loss treatment beyond diet and exercise, GLP-1 injections like Wegovy and Mounjaro can offer real results. Wegovy is currently the best option widely available in the UK and has helped many people lose weight and improve their health. However, keep an eye out for Mounjaro, which may soon become a strong option once more widely approved. Weight loss isn’t one-size-fits-all, so talk to a qualified expert to find the safest and most effective option for you. If you’re curious about weight loss injections like Wegovy or want to learn more about personalised treatment options, speak with our experts. We’ll guide you through the safest and most suitable choice for your goals. Book your private consultation at Touchwood Pharmacy today.
