30/08/2025
✨ Mounjaro vs. Wegovy: What’s the difference? ✨
Mounjaro and Wegovy are two of the most effective weight-loss injections available in the UK today. Both are weekly injectable treatments that help reduce appetite and support long-term weight management.
However, with Mounjaro prices set to rise by up to 170% from September 2025, many patients are asking if Wegovy is now the better alternative. This guide explains the differences in results, cost, availability, and what patients should consider before switching.
What Is Wegovy?
Active ingredient: Semaglutide (the same medicine as Ozempic, but licensed for weight management in the UK).
How it works: Mimics the GLP-1 hormone to reduce appetite, slow digestion, and help patients feel fuller for longer.
Weight loss results: On average, 15% body weight reduction in clinical trials.
What Is Mounjaro?
Active ingredient: Tirzepatide (a newer medicine that acts on two gut hormones – GLP-1 and GIP).
How it works: Provides dual action for appetite control and improved metabolism.
Weight loss results: Studies show up to 20% body weight reduction in some patients – slightly higher than Wegovy.
Effectiveness Compared:
Wegovy: Average weight loss of 15% (for someone weighing 100kg, that’s around 15kg).
Mounjaro: Average weight loss closer to 20% in trials.
Both are highly effective, but Mounjaro may produce slightly greater results. However, the cost difference is now a major factor.
NHS Access – Wegovy vs Mounjaro
Wegovy: Available on the NHS for patients with a BMI of 35+ and weight-related health issues, though supply is limited.
Mounjaro: Approved for diabetes treatment but not yet available on the NHS for weight loss. This means almost all patients must buy it privately.
Safety and Side Effects
Wegovy (semaglutide): Common side effects include nausea, diarrhoea, constipation, and stomach pain. These usually improve after the first few weeks.
Mounjaro (tirzepatide): Similar side effects, with some patients experiencing slightly higher rates of nausea.
Both are considered safe and well-studied, though Wegovy has more established long-term safety data in the UK.
Why Patients Are Switching to Wegovy
Rising cost of Mounjaro (up to £350 per month at higher doses).
Wegovy is licensed in the UK specifically for weight management.
Wegovy is more affordable, starting from just £180
Wegovy includes the same proven results for most patients, with clinical evidence of 15% weight loss.
🌟 Both can be powerful tools when combined with healthy lifestyle changes—but the right choice depends on you.
👩⚕️ At Nurse iCouture Aesthetics, we offer personalized consultations to determine which option best fits your goals, lifestyle, and health needs.
✨ Your journey, your glow, your confidence ✨