Eli Lilly, the maker of Mounjaro, has increased the price of all dose strengths in the UK to align with mainland Europe pricing. As a result, Wegovy is now a more cost-effective GLP-1 option for weight management in the UK.

We understand that price changes can feel sudden and frustrating. Our priority is to help you continue your weight loss journey smoothly and find a treatment that supports your health goals and lifestyle.

Yes. Following the recent Mounjaro price rise, Wegovy is now the more affordable choice for weight loss and obesity management, with prices starting at £99.99 per month.

Switching medications is common in medical practice — often done to reduce side effects or costs, similar to treatments for high blood pressure or cholesterol. We’ll guide you to the option that best fits your needs, goals, and budget.

Mounjaro currently shows greater average weight loss in clinical trials and remains the most effective medication for weight management as of July 2025.

That said, Wegovy is highly effective and delivers meaningful, lasting results. At the current maximum dose (2.4 mg), studies show an average 15% weight loss over 68 weeks, with 10.3% at 6 months — far more than lifestyle changes or older medications alone.

Later this year, a higher-strength Wegovy (7.2 mg) will be available. Trials showed that people taking this dose lost an average 21% of body weight, with roughly one-third losing 25% or more. Side effects were similar to the 2.4 mg dose.

Wegovy also offers benefits such as heart health support, compatibility with oral contraception, and a lower cost than Mounjaro.

Both medications work in similar ways, so side effects can overlap. If you tolerate Mounjaro well, you’re less likely to experience new or stronger side effects when switching to an equivalent Wegovy dose.

Common side effects include nausea, vomiting, diarrhoea, constipation, and stomach pain. Some users may also experience fatigue or headaches. These are often mild and temporary, sometimes linked to dehydration or inadequate nutrition.

Our clinical team will create a personalised transition plan to move you to Wegovy safely and maintain effectiveness.

For guidance on managing side effects, see our Weight Loss Health Guide.

Wegovy is now significantly more affordable per pen. It is also the first GLP-1 approved for heart health benefits, compatible with oral contraception, and tends to cause fewer injection site reactions.

Research shows that combining the highest dose of certain weight loss treatments with lifestyle changes can result in average weight loss of up to 20.9% in 36 weeks and 25.3% in 88 weeks.

Start a free online consultation and answer a few quick questions to check eligibility.

You’ll then see recommended treatments to choose from.

After checkout, you’ll be prompted to upload a few photos to confirm your identity.

Your order will then be delivered quickly, discreetly, and directly to your home.

Weight loss treatments are for people with a BMI over 30. Individuals with weight-related health conditions — including high blood pressure, diabetes, heart disease, or raised cholesterol — may be eligible with a BMI over 27.

If you have Type 2 diabetes and a BMI under 27, these treatments cannot be prescribed for weight loss.

No. With Ask Pharmacy, you reorder treatments as needed. There are no ongoing contracts or hidden fees, keeping you in full control.