Change Mounjaro to Wegovy UK - Compare Prices & Switch

Clinically Proven UK Registered Pharmacy

Cheapest Change Mounjaro to Wegovy - UK Comparison

Get Wegovy at the cheapest UK price from £124.99 — Save £20 off with code Weightlossnew.

UK-registered clinical team
Confidential and secure
No GP visit needed
Next-day delivery included — no hidden costs or surprise charges
Start Your Free Consultation

Takes less than 2 minutes to complete 100% online

Weightlossnew £20 off for new customers

Treatment from £124.99

Genuine Products
UK-licensed only
Fast Delivery
Next-day available
Expert Advice
UK pharmacists
Woman using Cured Pharmacy online consultation for weight loss treatment

Check your BMI

Height 175 cm
Weight 82 kg

Your BMI

26.8
Start Free Consultation

Free · BMI thresholds shown are illustrative. Final eligibility is confirmed by a UK prescriber during your free consultation.

LIVE PRICING

Our Pricing

Pricing Disclaimer: Prices on some pages may not be up to date — the live pricing table below and pricing shown during consultation are official current prices and take precedence over any other figures on the site.

Mounjaro (Tirzepatide)
Weeks 1–4

2.5mg

1 pen • 4 Weeks

£145 £124.99

£31.25 / Per Week

Your starting dose – designed to help your body adjust gently to treatment

⭐ Future Orders at £145
Start Consultation
Mounjaro (Tirzepatide)
Weeks 5–8

5mg

1 pen • 4 Weeks

£179 £159.00

£39.75 / Per Week

First step up – builds on your progress as your body adapts to treatment

⭐ Future Orders at £179
Start Consultation
Mounjaro (Tirzepatide)
Weeks 9–12

7.5mg

1 pen • 4 Weeks

£220 £200.00

£50.00 / Per Week

Mid-range dose – for continued progression and enhanced results

⭐ Future Orders at £220
Start Consultation
Mounjaro (Tirzepatide)
Weeks 13–16

10mg

1 pen • 4 Weeks

£245 £225.00

£56.25 / Per Week

Higher strength dose – supports significant weight loss progress

⭐ Future Orders at £245
Start Consultation
Mounjaro (Tirzepatide)
Weeks 17–20

12.5mg

1 pen • 4 Weeks

£270 £250.00

£62.50 / Per Week

Advanced dose – for patients requiring stronger therapeutic effect

⭐ Future Orders at £270
Start Consultation
Mounjaro (Tirzepatide)
Weeks 21+

15mg

1 pen • 4 Weeks

£287 £267.00

£66.75 / Per Week

Maximum dose – the highest available strength for optimal results

⭐ Future Orders at £287
Start Consultation
Wegovy (Semaglutide)
Weeks 1–4

0.25mg

1 pen • 4 Weeks

£89 £69.00

£17.25 / Per Week

Your starting dose – eases your body into treatment with minimal side effects

⭐ Future Orders at £89
Start Consultation
Wegovy (Semaglutide)
Weeks 5–8

0.5mg

1 pen • 4 Weeks

£109 £89.00

£22.25 / Per Week

First step up – continues building tolerance for long-term success

⭐ Future Orders at £109
Start Consultation
Wegovy (Semaglutide)
Weeks 9–12

1mg

1 pen • 4 Weeks

£119 £99.00

£24.75 / Per Week

Mid-range dose – where most patients start seeing meaningful results

⭐ Future Orders at £119
Start Consultation
Wegovy (Semaglutide)
Weeks 13–16

1.7mg

1 pen • 4 Weeks

£169 £149.00

£37.25 / Per Week

Higher strength – supports accelerated weight loss progress

⭐ Future Orders at £169
Start Consultation
Wegovy (Semaglutide)
Weeks 17+

2.4mg

1 pen • 4 Weeks

£199 £179.00

£44.75 / Per Week

Maximum dose – the highest available strength for optimal weight management

⭐ Future Orders at £199
Start Consultation
Wegovy (Oral Pill)
Weeks 1–4

1.5mg

1 pen • 4 Weeks

£83.00 £63.00

£20.75 / Per Week

Your starting dose – eases your body into treatment with minimal side effects

⭐ Future Orders at £83.00
Start Consultation
Wegovy (Oral Pill)
Weeks 5–8

4mg

1 pen • 4 Weeks

£110.00 £90.00

£27.50 / Per Week

First step up – continues building tolerance for long-term success

⭐ Future Orders at £110.00
Start Consultation
Wegovy (Oral Pill)
Weeks 9–12

9mg

1 pen • 4 Weeks

£140.00 £120.00

£35.00 / Per Week

Mid-range dose – where most patients start seeing meaningful results

⭐ Future Orders at £140.00
Start Consultation
Wegovy (Oral Pill)
Weeks 13+

25mg

1 pen • 4 Weeks

£199.00 £179.00

£49.75 / Per Week

Maximum dose – the highest available strength for optimal weight management

⭐ Future Orders at £199.00
Start Consultation

Change Mounjaro to Wegovy: UK Clinical Comparison & Switching Guide

Many UK patients consider whether to change Mounjaro to Wegovy after starting their weight loss journey, often due to cost differences, side effect profiles, or availability concerns. Both tirzepatide (Mounjaro) and semaglutide (Wegovy) are highly effective GLP-1 receptor agonists licensed by the MHRA for chronic weight management, but they work through distinct mechanisms and require different dosing protocols when transitioning between treatments. This guide provides evidence-based insights from our UK clinical team to help you understand the practical considerations, safety requirements, and expected outcomes when switching from Mounjaro to Wegovy under prescriber supervision.

Why UK Patients Change Mounjaro to Wegovy

The decision to change Mounjaro to Wegovy typically stems from three main factors: cost considerations, tolerability differences, or supply availability. Wegovy is priced from £124.99 at Cured Pharmacy compared to Mounjaro at £124.99, representing a significant monthly saving for long-term treatment [1]. While both medications deliver substantial weight loss, some patients experience better gastrointestinal tolerance with semaglutide's single GLP-1 receptor action compared to tirzepatide's dual GIP/GLP-1 mechanism.

Clinical experience shows that patients who have achieved their initial weight loss targets on Mounjaro may successfully transition to Wegovy for maintenance therapy, particularly when cost becomes a priority consideration. The STEP clinical trial programme demonstrated that semaglutide 2.4mg delivered average weight reductions of 15-17% from baseline over 68 weeks, while SURPASS trials showed tirzepatide achieving 15-22% reductions depending on dose [2]. Both remain highly effective options, and switching between them is clinically appropriate when supervised by a UK prescriber who can tailor the transition protocol to your individual response and medical history.

Cost Comparison for Long-Term Treatment

For patients committed to 12-month weight management programmes, the cumulative cost difference between Mounjaro and Wegovy becomes substantial. At Cured Pharmacy's transparent pricing, a full year of Wegovy treatment costs approximately £124.99 compared to £124.99 for Mounjaro, saving over £124.99 annually. These figures assume maintenance dosing and do not account for the £20 discount available with code Weightlossnew on your first order, which further reduces initial costs. All prices are shown upfront before consultation, ensuring you can make informed financial decisions about your weight loss journey.

How to Safely Change Mounjaro to Wegovy: Dosing Protocol

When you change Mounjaro to Wegovy, your prescriber will determine the appropriate starting dose based on your current tirzepatide dose and treatment duration. The standard approach involves a washout consideration due to differing half-lives: tirzepatide has a half-life of approximately 5 days, while semaglutide's is around 7 days [3]. Most UK prescribers recommend starting Wegovy at 0.25mg weekly after your final Mounjaro dose, even if you were on a higher tirzepatide maintenance dose, to minimise gastrointestinal side effects during the transition period.

The Wegovy dose escalation schedule then follows the licensed protocol: 0.25mg weekly for 4 weeks, 0.5mg for 4 weeks, 1mg for 4 weeks, 1.7mg for 4 weeks, and finally 2.4mg as the maintenance dose [4]. This gradual titration is essential for tolerability, regardless of your previous Mounjaro dose. Some patients who were well-established on Mounjaro 10mg or 15mg may progress through the Wegovy escalation slightly faster under close prescriber supervision, but this must be individualised based on your response and side effect profile. Never adjust dosing schedules without consulting your prescriber, as both medications require careful clinical monitoring throughout any transition.

Efficacy Differences When You Change Mounjaro to Wegovy

Patients often ask whether they will maintain their weight loss results after changing Mounjaro to Wegovy, and clinical evidence suggests that semaglutide provides robust weight maintenance when used at the full 2.4mg dose. Head-to-head trial data from SURPASS-2 showed tirzepatide delivered slightly greater weight reductions than semaglutide 1mg (not the 2.4mg Wegovy dose), but real-world UK clinical experience demonstrates that patients who switch to Wegovy typically maintain their achieved weight loss provided they adhere to the full maintenance dose and continue lifestyle modifications [5].

The key difference lies in the mechanism: Mounjaro's dual GIP/GLP-1 receptor agonism may produce marginally greater peak weight loss in some individuals, while Wegovy's selective GLP-1 action still delivers clinically significant results with a well-established safety profile across diverse patient populations. If you experienced a plateau on Mounjaro, switching to Wegovy is unlikely to break that plateau unless combined with renewed dietary and activity interventions. Conversely, if cost or side effects were limiting your Mounjaro adherence, transitioning to Wegovy may actually improve long-term outcomes by supporting consistent weekly dosing. Your prescriber will assess your individual weight loss trajectory and metabolic response when recommending whether to change Mounjaro to Wegovy.

Expected Weight Loss Trajectory After Switching

Most patients who change Mounjaro to Wegovy experience stable weight maintenance during the transition period, with some continuing gradual loss as they titrate up to the full 2.4mg semaglutide dose. Clinical observations suggest that patients who achieved 10-15% body weight reduction on Mounjaro maintain those results on Wegovy, with an additional 2-5% loss possible if they were not yet at their weight loss plateau. The critical factor is completing the full Wegovy dose escalation to 2.4mg weekly, as lower doses may not provide equivalent appetite suppression and metabolic benefits to higher-dose tirzepatide regimens.

Feature Mounjaro (Tirzepatide) Wegovy (Semaglutide)
Active Ingredient Tirzepatide (dual GIP/GLP-1) Semaglutide (GLP-1 only)
Maintenance Dose 5mg, 10mg, or 15mg weekly 2.4mg weekly
Average Weight Loss 15-22% over 72 weeks 15-17% over 68 weeks
Starting Price at Cured Pharmacy From £145.00 From £89.00
Injection Frequency Once weekly Once weekly
Dose Escalation Period 4-20 weeks depending on target 20 weeks to reach 2.4mg
Common Side Effects Nausea, diarrhoea, constipation Nausea, diarrhoea, constipation
MHRA Approval for Weight Loss Yes (2023) Yes (2022)

Side Effects to Expect When Changing Mounjaro to Wegovy

The side effect profile differs subtly when you change Mounjaro to Wegovy, primarily due to the shift from dual GIP/GLP-1 agonism to selective GLP-1 receptor activation. Common gastrointestinal effects—nausea, diarrhoea, constipation, and abdominal discomfort—occur with both medications, but clinical experience shows that some patients who experienced persistent nausea on Mounjaro find semaglutide better tolerated, while others report the opposite [6]. Starting Wegovy at the lowest 0.25mg dose and following the gradual escalation protocol significantly reduces the intensity of these effects during transition.

Rare but serious side effects, including pancreatitis risk, thyroid C-cell tumour warnings, and gallbladder complications, apply equally to both tirzepatide and semaglutide, as these are class effects of GLP-1 receptor agonists. Your prescriber will review your complete medical history before approving the switch, particularly if you experienced any adverse events on Mounjaro. Patients with a personal or family history of medullary thyroid carcinoma or Multiple Endocrine Neoplasia syndrome type 2 should not use either medication. If you discontinued Mounjaro due to intolerable side effects rather than cost or availability, discuss alternative weight management options with your UK clinical team, as Wegovy may produce similar reactions given the overlapping mechanism of action.

Prescription Process to Change Mounjaro to Wegovy at Cured Pharmacy

Changing Mounjaro to Wegovy requires a new clinical assessment by a UK-registered prescriber, even if you have an active Mounjaro prescription. At Cured Pharmacy, the process takes under 3 minutes: complete the online consultation form detailing your current tirzepatide dose, treatment duration, weight loss achieved, and any side effects experienced. Our clinical team, supervised by Superintendent Pharmacist Tarun Kumar (GPhC 2233073), will review your medical history and current medications to confirm suitability for semaglutide and determine the appropriate starting dose.

Once approved, your Wegovy prescription is dispensed from our GPhC-registered pharmacy (9012511) with discreet next-day delivery across the UK. Pricing is fully transparent before you begin the consultation: Wegovy starts from £124.99, with an additional £20 off your first order using code Weightlossnew. All Wegovy supplied by Cured Pharmacy is genuine UK-licensed medication sourced through regulated channels and stored under controlled pharmaceutical conditions. Your prescriber will provide guidance on timing your first Wegovy dose relative to your last Mounjaro injection, typically recommending you begin the 0.25mg starter dose one week after your final tirzepatide injection to maintain therapeutic continuity while minimising overlapping drug exposure.

Ongoing Monitoring After You Change Mounjaro to Wegovy

Successful long-term weight management with Wegovy requires regular clinical monitoring, just as it did with Mounjaro. Your prescriber will schedule follow-up assessments every 4-12 weeks during the dose escalation phase to evaluate weight loss progress, tolerability, and any emerging side effects. Blood pressure, heart rate, and HbA1c monitoring (if you have type 2 diabetes) continue as part of comprehensive metabolic care. If you do not achieve at least 5% weight loss after 3-6 months on the full 2.4mg Wegovy dose, your prescriber will reassess whether continued semaglutide therapy is appropriate or whether alternative interventions should be considered, in line with NICE guidance on GLP-1 agonist use for weight management [7].

Cost Savings and UK Availability When You Change Mounjaro to Wegovy

Beyond the per-dose price advantage, changing Mounjaro to Wegovy can improve treatment accessibility during periods of supply constraint. Wegovy has experienced intermittent availability challenges across UK pharmacies, but Cured Pharmacy maintains direct relationships with licensed wholesalers to secure consistent stock for our patients. Our transparent pricing model ensures you always know the exact cost before starting treatment: £124.99 for Wegovy compared to £124.99 for Mounjaro, with no hidden fees or post-consultation price increases.

For patients funding their own weight loss treatment, this £124.99 monthly saving accumulates to over £124.99 annually, making long-term adherence more financially sustainable. The £20 discount available with code Weightlossnew on your first order further reduces the initial cost barrier when you change Mounjaro to Wegovy. Both medications require the same weekly injection commitment and similar lifestyle modification support, so switching based on cost does not compromise the behavioural components of your weight management programme. Our UK clinical team remains available throughout your treatment journey to support dose adjustments, manage side effects, and optimise your individual response to semaglutide therapy.

Insurance and NHS Prescribing Considerations

NHS prescribing of both Mounjaro and Wegovy for weight management remains highly restricted, with access typically limited to specialist weight management services under strict eligibility criteria. Most UK patients fund their GLP-1 agonist treatment privately, making the cost difference between tirzepatide and semaglutide a significant practical consideration. If you were initially prescribed Mounjaro through the NHS or a specialist clinic and wish to change Mounjaro to Wegovy via private prescription, ensure your current prescriber is informed of the switch to maintain continuity of care and avoid duplicate prescribing. Cured Pharmacy's clinical team can coordinate with your NHS GP or specialist to ensure seamless transition and appropriate shared-care arrangements where applicable.

Scientific References

  1. Wilding, J. P. H., Batterham, R. L., Davies, M., Van Gaal, L. F., Kandler, K., Konakli, K., ... & Kushner, R. F. (2022). Weight regain and cardiometabolic effects after withdrawal of semaglutide: The STEP 1 trial extension. Diabetes, Obesity and Metabolism, 24(8), 1553-1564. [accessed 15 August 2026]
  2. Jastreboff, A. M., Aronne, L. J., Ahmad, N. N., Wharton, S., Connery, L., Alves, B., ... & Garvey, W. T. (2022). Tirzepatide once weekly for the treatment of obesity. New England Journal of Medicine, 387(3), 205-216. [accessed 15 August 2026]
  3. Urva, S., Quinlan, T., Landry, J., Coskun, T., Haupt, A., & Robins, D. (2021). Effects of renal impairment on the pharmacokinetics of tirzepatide. Clinical Pharmacokinetics, 60(9), 1049-1059. [accessed 15 August 2026]
  4. Novo Nordisk. (2023). Wegovy (semaglutide) 2.4 mg Summary of Product Characteristics. Electronic Medicines Compendium. [accessed 15 August 2026]
  5. Frías, J. P., Davies, M. J., Rosenstock, J., Pérez Manghi, F. C., Fernández Landó, L., Bergman, B. K., ... & SURPASS-2 Investigators. (2021). Tirzepatide versus semaglutide once weekly in patients with type 2 diabetes. New England Journal of Medicine, 385(6), 503-515. [accessed 15 August 2026]
  6. Smits, M. M., & Van Raalte, D. H. (2021). Safety of semaglutide. Frontiers in Endocrinology, 12, 645563. [accessed 15 August 2026]
  7. National Institute for Health and Care Excellence. (2023). Semaglutide for managing overweight and obesity. Technology appraisal guidance [TA875]. [accessed 15 August 2026]
  8. NHS. (2026). Tirzepatide: a medicine to manage type 2 diabetes and treat obesity. https://www.nhs.uk/medicines/tirzepatide/ Accessed 15 August 2026.
  9. NHS. (2026). Overweight and obesity in adults. https://www.nhs.uk/conditions/overweight-and-obesity/ Accessed 15 August 2026.
  10. NHS England. (2026). Weight management injections. https://www.england.nhs.uk/ourwork/prevention/obesity/medicines-for-obesity/weight-management-injections/ Accessed 15 August 2026.

Information on this page is for educational purposes only and is not medical advice. All prescription treatments require clinical assessment by a UK-registered prescriber. Always consult a qualified healthcare professional before starting any new medication.

Trusted by thousands

Real people, real results

Jane L.

"Brilliant. Lost 4 stone on mounjaro no side effects at all. Cured pharmacy are excellent. Always helpful pens sent out quickly always comes with needles and sterile wipes. If you want to go on GLP-1 go to cured pharmacy. So professional. Thank you cured pharmacy you changed my health and well being."

Ann-Marie

"I absolutely love this product, I have been using 2.5mg as maintenance dose and have managed to control my weight without any side effects and can still eat well balanced meals. The pharmacy is very efficient friendly and helpful I would not purchase from anywhere else."

Sacha W.

"So far I'm really impressed by my results it's crazy cause I'm not snacking like how I used to do and I see my face slimming down already and it's only been 2 and a half weeks. Can't wait to give my feedback in 5 months time thank you cured pharmacy."

Kimberly G.

"Mounjaro has corrected my hormonal weight gain during menopause. I am using it now to maintain that balance. The results for me have been exceptional!"

Jennifer

"Great really helps cure those nasty habits can't wait for my next mounjaro pen."

How it Works?

Select from our recommended UK-licensed medications.

1

Choose your treatment

Step 1: Choose your treatment from Cured Pharmacy

Select safe UK treatments. Quick answers.

2

Answer quick questions

Step 2: Answer quick consultation questions

We will deliver direct to you as quickly as tomorrow.

3

Get it delivered fast

Step 3: Fast discreet delivery to your door

Start Your Assessment For Weight Loss

Start your journey to better health today.

  • Reviewed by UK-based prescribers
  • Takes under 3 minutes
  • Discreet Packaging

Start Your Journey To Better Health Today

Once you complete a short online assessment you will be able to choose your preferred treatment from safe medically approved options tailored to you.

Start My Assessment

Returning Customer?

Log in to Your Account

Faq

Can I change Mounjaro to Wegovy immediately or do I need a break between treatments?
Most UK prescribers recommend starting Wegovy 0.25mg one week after your last Mounjaro dose to allow partial drug clearance while maintaining therapeutic continuity. Your individual transition protocol will be determined during your clinical assessment based on your current tirzepatide dose and treatment response.
Will I regain weight if I change Mounjaro to Wegovy?
Clinical evidence shows that patients who transition to the full 2.4mg Wegovy maintenance dose typically maintain their weight loss achieved on Mounjaro, provided they continue lifestyle modifications and adhere to weekly dosing. Weight regain is uncommon when switching between effective GLP-1 therapies under prescriber supervision.
Is Wegovy as effective as Mounjaro for weight loss?
Both medications deliver clinically significant weight loss, with tirzepatide showing slightly higher average reductions in head-to-head trials (15-22% vs 15-17%). However, individual responses vary, and many patients achieve excellent results on semaglutide 2.4mg, making Wegovy a highly effective option when you change Mounjaro to Wegovy for cost or tolerability reasons.
What dose of Wegovy should I start on if I was taking Mounjaro 10mg?
Regardless of your previous Mounjaro dose, you should start Wegovy at 0.25mg weekly and follow the standard escalation protocol to minimise side effects. Jumping directly to higher semaglutide doses significantly increases the risk of severe nausea and gastrointestinal distress, even if you tolerated high-dose tirzepatide well.
How much will I save if I change Mounjaro to Wegovy at Cured Pharmacy?
Wegovy costs from £124.99 compared to Mounjaro at £20 saving £124.99 per month or over £124.99 annually. Your first order includes an additional £20 off with code Weightlossnew, further reducing initial costs when you change Mounjaro to Wegovy.
Do I need a new prescription to change Mounjaro to Wegovy?
Yes, switching from tirzepatide to semaglutide requires a new clinical assessment and prescription from a UK-registered prescriber. Cured Pharmacy's online consultation takes under 3 minutes and includes review of your current treatment, weight loss progress, and medical history to confirm suitability for Wegovy.
Can I switch back to Mounjaro if Wegovy doesn't work for me?
Yes, patients can transition back to tirzepatide if semaglutide proves less effective or poorly tolerated, subject to prescriber approval. However, most patients who change Mounjaro to Wegovy successfully maintain their weight loss on the full 2.4mg semaglutide dose, making reverse switching uncommon in clinical practice.
Will my side effects improve if I change Mounjaro to Wegovy?
Side effect profiles are similar between tirzepatide and semaglutide, as both are GLP-1 receptor agonists. Some patients experience better gastrointestinal tolerance with one medication over the other, but this is highly individual and cannot be predicted in advance. If you experienced intolerable side effects on Mounjaro, discuss alternative weight management options with your prescriber before assuming Wegovy will be better tolerated.
Tarun Kumar, Prescribing Pharmacist

Medically reviewed by

Tarun Kumar, Prescribing Pharmacist (GPhC 2233073)

Reviewed on: June 03, 2026

Last reviewed: 15 August 2026

Last updated on 15 August 2026.

Review History

Our experts continually monitor new findings in health and medicine, and we update our articles when new information becomes available.

Why this page was updated on 15 August 2026

Content checked and updated as part of our periodic review, to ensure accuracy and currentness.

Current version (15 August 2026)

Edited by: The Editorial Team

Medically reviewed by:

Tarun Kumar, GPhC No. 2233073, Prescribing Pharmacist


How we source info.

When we present you with stats, data, opinion or a consensus, we'll tell you where this came from.