Mounjaro Price Rise in the UK: Switch to Wegovy FAQ
Wegovy® and Mounjaro® are both clinically proven weight management treatments. While both can support safe and effective weight loss, current pricing makes Wegovy® more cost-accessible for many patients.
Key Takeaways
-
Treatment options: Wegovy® and Mounjaro® are both clinically proven for weight management, with suitability depending on your health profile.
-
Why Wegovy now: Due to current pricing and wider availability, many patients are choosing Wegovy® as the more accessible option.
-
Free review: Whether you are new or an existing patient, you can request a free treatment review with a My London Pharmacy clinician to discuss the best plan for you.
We understand that price changes in essential medicines can be worrying, particularly when you’re focused on your weight management journey.
From 1 September 2025, Eli Lilly, the manufacturer of Mounjaro® (tirzepatide), will increase its UK list price in line with international markets. This change will apply across all providers, including pharmacies, clinics, and digital health platforms.
In response, we have adjusted our Wegovy® programme pricing to make it more affordable — now starting at £92 (previously £119). For patients who may wish to consider switching, our clinicians can support a smooth transition to Wegovy® where appropriate, helping you continue your treatment plan without interruption.
Drag the sliders to your height & weight
*Adults. Categories follow widely used BMI thresholds. †Ideal weight uses a BMI of 22.0 for your height.
What’s your Body Mass Index (BMI)?
Adjust your height and weight to see your BMI instantly. This tool is for information only and doesn’t replace personalised medical advice.
My London Pharmacy • Safe • Private • UK-registered
FAQs
Is Wegovy as effective as Mounjaro?
Yes. At the new highest doses (up to 7.2mg weekly), Wegovy delivers an average ~21% weight loss at 72 weeks, comparable to Mounjaro in clinical studies.
Many patients achieve even more with pharmacist-led adjustments and ongoing support.
What’s the main difference between Wegovy and Mounjaro?
The main difference between Wegovy and Mounjaro lies in the active ingredient. Both are once-weekly GLP-1 injections designed to support weight loss, but Wegovy contains semaglutide, a treatment that has been widely used by millions of patients worldwide and extensively studied in clinical trials. Mounjaro, on the other hand, contains tirzepatide, a newer dual-acting medication that works slightly differently in the body.
How does switching work?
- Review: We check your history and tolerance.
- Match: If eligible, we place you on an equivalent Wegovy dose.
- Transition: A 7-day gap between your last Mounjaro and first Wegovy (others often require 28 days).
- Support: Pharmacist check-ins and lifestyle guidance keep you on track.
Are Mounjaro prices going up?
Yes — from 1 September 2025, Eli Lilly will raise the UK list price for Mounjaro.
This applies nationwide across pharmacies, private clinics, and digital providers.
Why is the cost increasing?
Eli Lilly is aligning UK pricing with other major markets.
When Mounjaro first launched in the UK, costs were kept lower to speed access. With more evidence and a stronger market presence, prices are being revised upward.
Because wholesalers supply all providers, these changes automatically affect patient prices everywhere.
Why Wegovy is now the smarter choice
- Similar results: Higher-dose Wegovy (7.2mg) achieves ~21% weight loss at 72 weeks, matching Mounjaro’s outcomes.
- Heart health benefits: The only GLP-1 in the UK approved to reduce heart attack and stroke risk in people with obesity and heart disease.
- Trusted care: Unlimited dose adjustments, pharmacist oversight, and tailored lifestyle support.
Can I switch if my BMI is now lower?
Yes — if you’re already on a GLP-1 and your BMI is above 22, you may still be eligible (subject to safety criteria).
What proof do I need to switch?
We accept:
- A photo of your prescription label
- An email confirmation from your provider
- Any document showing your name, the medication, strength, and date of prescription
Is it safe to switch mid-treatment?
Yes. Switching between GLP-1 medications is considered safe with clinical oversight. Wegovy is also suitable for patients taking the contraceptive pill.
How long does the switch take?
Most patients can switch immediately. If a clinical review is needed, you’ll usually hear from a prescriber within one working day.
What if Wegovy isn’t right for me?
If Wegovy doesn’t suit you, our clinicians will review your options — including moving back to Mounjaro if appropriate.
Can I return to Mounjaro if Wegovy isn’t right for me?
Yes. If Wegovy isn’t the best fit, our clinicians will reassess your treatment and, if appropriate, support a switch back to Mounjaro — without extra charges.
Weight loss backed by science
- Evidence-based treatments proven to deliver results
- Tailored nutrition and activity guidance
- Ongoing clinical support at every stage
- Trusted by over 50,000 patients worldwide
