Yes, switching medications is a normal and common occurrence — it’s something medical professionals do regularly for conditions like high blood pressure or high cholesterol, whether it’s to reduce side effects or lower costs. We’ll work with you to find the treatment that’s right for your needs, budget and goals.

Both Wegovy (semaglutide 7.2mg) and Mounjaro (tirzepatide 15mg) are highly effective for long-term weight loss, but they work slightly differently and may affect people differently.

In 72 weeks, people taking Wegovy 7.2mg in a clinical study lost an average of 20.7% of their body weight when taken as directed. This means that someone who weighs 100kg may lose 20.7kg on average in 72 weeks (1 year, 5 months).*

In 72 weeks, people taking Mounjaro 15mg in a clinical study lost an average of 22.5% of their body weight when taken as directed. This means that someone who weighs 100kg may lose 22.5kg on average in 72 weeks (1 year, 5 months).**

These are examples only. It is not a prediction of individual results.

Both can be excellent options. The right choice comes down to your health needs, goals, lifestyle and how your body responds to treatment. Our medical team will help you find what works best for you.

*STEP UP, 72-week study of adults with obesity using Wegovy (semaglutide 7.2mg). Individual results vary.

**SURMOUNT-1, 72-week study of adults with obesity using Mounjaro (tirzepatide 15mg). Individual results vary.

Wegovy and Mounjaro work in similar ways, so they can cause similar side effects. If you did well on Mounjaro, this can help your clinician choose a safe starting dose of Wegovy. However, it doesn’t mean your experience will be exactly the same.

Common side effects include nausea, vomiting, diarrhoea, constipation, and stomach pain. Some people may also feel tired or get headaches. These side effects are usually mild and often improve over time. They can sometimes feel worse if you're dehydrated or not getting enough nutritious food.

Our clinical team will create a plan that’s tailored to you. Our focus is on keeping you safe, reducing side effects, and helping you switch to Wegovy as smoothly as possible.

If you want tips on managing side effects, visit our Weight Loss Health Guide

Wegovy is now significantly less expensive per pen. It's also the first GLP-1 licensed for heart health benefits, is suitable for use with oral contraception, and tends to have fewer injection site reactions.

Simply start a free online consultation, answering some quick questions to check your eligibility.

You'll then see recommended treatments for you to choose from.

After checkout you'll be prompted to upload some quick photos to confirm your identity.

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

Weight loss treatments are suitable for people with a BMI over 30. For individuals with weight related health concerns, they may be eligible with a BMI over 27. These related concerns include high blood pressure, diabetes, heart disease and raised cholesterol.

If you have Type 2 diabetes and a BMI less than 27, we can't prescribe these treatments for weight loss.

No, at MedExpress you can reorder your treatment as you need it. There's no ongoing contract or hidden fees, and you're always in control.