Wegovy vs Mounjaro - Which Is Cheaper in the UK?

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Wegovy vs Mounjaro - Compare Prices & Cheapest UK Option

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

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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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Wegovy vs Mounjaro: Which Weight Loss Injection Is Right for You?

Choosing between Wegovy vs Mounjaro is one of the most common questions we receive from patients seeking effective weight loss treatment. Both medications are prescription GLP-1 receptor agonists licensed for weight management in the UK, but they differ in mechanism, efficacy data, and cost. As a UK-registered pharmacy with thousands of weight loss consultations completed, we'll help you understand the clinical evidence and make an informed choice.

How Wegovy vs Mounjaro Work: Understanding the Mechanisms

When comparing Wegovy vs Mounjaro, the fundamental difference lies in their receptor targets. Wegovy contains semaglutide, a GLP-1 receptor agonist that mimics the incretin hormone GLP-1 to regulate appetite, slow gastric emptying, and improve glycaemic control [1]. Mounjaro, containing tirzepatide, is a dual GIP/GLP-1 receptor agonist — it activates both glucose-dependent insulinotropic polypeptide (GIP) and GLP-1 receptors, offering a broader metabolic effect [2].

This dual-agonist mechanism in Mounjaro may explain why clinical trials have shown slightly greater average weight loss compared to GLP-1-only medications. Both treatments work by reducing hunger signals in the brain, slowing how quickly food leaves the stomach, and improving insulin sensitivity. Patients typically report feeling fuller for longer and experiencing fewer cravings, which supports sustainable calorie reduction without the need for restrictive dieting [3].

Wegovy vs Mounjaro Weight Loss Results: What Clinical Trials Show

The most robust comparison of Wegovy vs Mounjaro efficacy comes from head-to-head and parallel trial data. In the STEP 1 trial, Wegovy (semaglutide 2.4mg weekly) led to an average weight loss of 14.9% of body weight over 68 weeks in adults with obesity [1]. The SURMOUNT-1 trial demonstrated that Mounjaro (tirzepatide 15mg weekly) achieved an average weight loss of 20.9% over 72 weeks — the highest recorded in any obesity medication trial to date [2].

While these results are impressive, it's important to note that individual responses vary significantly. In our clinical experience at Cured Pharmacy, we've seen patients achieve excellent outcomes on both medications. Factors including baseline BMI, adherence to lifestyle modifications, and tolerance of side effects all influence real-world results. Both treatments require commitment to dietary changes and physical activity to maximise benefit [3].

Typical Timeline for Wegovy vs Mounjaro Results

Most patients notice appetite suppression within the first 1-2 weeks of starting either medication. Measurable weight loss typically begins within 4 weeks, with the most significant changes occurring between months 3-6 as doses are titrated upward. Both Wegovy and Mounjaro follow gradual dose escalation schedules to minimise gastrointestinal side effects, meaning peak efficacy is usually reached after several months of treatment.

Wegovy vs Mounjaro Side Effects: What to Expect

The side effect profiles of Wegovy vs Mounjaro are similar, as both are incretin-based therapies. The most common adverse effects are gastrointestinal: nausea, diarrhoea, constipation, vomiting, and abdominal discomfort [1][2]. These symptoms are typically mild to moderate, occur most frequently during dose escalation, and tend to improve within 4-8 weeks as the body adapts.

In clinical trials, approximately 44% of Wegovy users and 42% of Mounjaro users reported nausea, though severe cases leading to discontinuation were rare (around 4-6%) [1][2]. Some patients find Mounjaro slightly better tolerated due to the GIP receptor's protective effect on the gastrointestinal tract, though this varies individually. Both medications carry warnings for potential thyroid C-cell tumours (observed in rodent studies) and are contraindicated in patients with a personal or family history of medullary thyroid carcinoma or Multiple Endocrine Neoplasia syndrome type 2 [4].

Managing Side Effects When Comparing Wegovy vs Mounjaro

Our pharmacists recommend eating smaller, more frequent meals, avoiding high-fat foods, and staying well-hydrated to minimise nausea and gastrointestinal discomfort. If side effects are intolerable on one medication, switching to the other under prescriber guidance is an option, as individual tolerance can differ. Never adjust doses without consulting your prescriber, as proper titration is essential for both safety and efficacy.

Feature Wegovy Mounjaro
Active Ingredient Semaglutide Tirzepatide
Mechanism GLP-1 agonist Dual GIP/GLP-1 agonist
Average Weight Loss 14.9% (68 weeks) 20.9% (72 weeks)
Dosing Frequency Once weekly injection Once weekly injection
Starting Dose 0.25mg 2.5mg
Maximum Dose 2.4mg 15mg
Price at Cured Pharmacy From £89.00 From £145.00
Common Side Effects Nausea, diarrhoea, constipation Nausea, diarrhoea, constipation
MHRA Approval Yes Yes

Wegovy vs Mounjaro UK Price Comparison: Which Is Cheaper?

Cost is a significant consideration when choosing between Wegovy vs Mounjaro, especially as both are typically private prescriptions in the UK. At Cured Pharmacy, Wegovy starts from £124.99 per month, making it one of the most competitively priced GLP-1 options available. Mounjaro starts from £124.99 per month. New patients can Save £20 on their first order with code Weightlossnew, reducing the initial cost of Wegovy to just £124.99.

While Mounjaro shows slightly higher average weight loss in trials, Wegovy offers excellent value for patients seeking proven efficacy at a lower monthly investment. Both medications require ongoing treatment to maintain weight loss, so long-term affordability is an important factor. We provide transparent upfront pricing before your clinical consultation, so there are no hidden costs or surprises.

Switching Between Wegovy vs Mounjaro: Clinical Guidance

Many patients ask whether they can switch between Wegovy vs Mounjaro if they're not achieving desired results or experiencing side effects. Switching is possible and can be done safely under prescriber supervision. If you're currently on Wegovy and wish to try Mounjaro, your prescriber will typically start you at the appropriate Mounjaro dose based on your current semaglutide dose, rather than restarting at the lowest titration level [4].

Conversely, switching from Mounjaro to Wegovy may be appropriate for patients seeking a more affordable option or those who experience better tolerability with GLP-1-only therapy. The transition should always be guided by a healthcare professional to ensure continuity of glycaemic control and weight management. At Cured Pharmacy, our UK-registered clinical team can assess your treatment history and recommend the most suitable option during your online consultation.

When to Consider Switching in the Wegovy vs Mounjaro Debate

Consider switching if you've plateaued after 3-6 months on your current medication, if side effects remain intolerable despite dose adjustments, or if cost is limiting your ability to continue treatment long-term. Both medications are highly effective, and finding the right fit for your body and budget is key to sustainable weight loss success.

Wegovy vs Mounjaro: Which Should You Choose?

The decision between Wegovy vs Mounjaro depends on your individual priorities: efficacy goals, budget, tolerability, and clinical history. If maximising weight loss is your primary objective and budget allows, Mounjaro's dual-agonist mechanism offers the highest average efficacy demonstrated in clinical trials [2]. If you're seeking a proven, cost-effective option with extensive real-world evidence and lower monthly cost, Wegovy remains an excellent choice [1].

Both medications require a prescription following clinical assessment by a UK-registered prescriber. At Cured Pharmacy, our online consultation takes under 3 minutes, and our clinical team will review your medical history, BMI, and weight loss goals to recommend the most appropriate treatment. We only supply genuine UK-licensed medications, and all prescriptions are issued by our superintendent pharmacist Tarun Kumar (GPhC 2233073) or our partner prescribers.

Whichever you choose, combining medication with sustainable lifestyle changes — including a balanced diet and regular physical activity — is essential for long-term success. Our team is here to support you throughout your weight loss journey with expert guidance and the lowest prices guaranteed in the UK.

Scientific References

  1. Wilding, J. P. H., Batterham, R. L., Calanna, S., et al. (2021). Once-weekly semaglutide in adults with overweight or obesity. New England Journal of Medicine, 384(11), 989-1002. [accessed 15 August 2026]
  2. Jastreboff, A. M., Aronne, L. J., Ahmad, N. N., et al. (2022). Tirzepatide once weekly for the treatment of obesity. New England Journal of Medicine, 387(3), 205-216. [accessed 15 August 2026]
  3. Garvey, W. T., Batterham, R. L., Bhatta, M., et al. (2022). Two-year effects of semaglutide in adults with overweight or obesity: the STEP 5 trial. Nature Medicine, 28(10), 2083-2091. [accessed 15 August 2026]
  4. Medicines and Healthcare products Regulatory Agency. (2023). Wegovy and Mounjaro: GLP-1 receptor agonist prescribing guidance. MHRA Drug Safety Update. [accessed 15 August 2026]
  5. NHS. (2026). Tirzepatide: a medicine to manage type 2 diabetes and treat obesity. https://www.nhs.uk/medicines/tirzepatide/ Accessed 15 August 2026.
  6. NHS. (2026). Overweight and obesity in adults. https://www.nhs.uk/conditions/overweight-and-obesity/ Accessed 15 August 2026.
  7. 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."

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Faq

Which is better for weight loss, Wegovy vs Mounjaro?
Mounjaro showed higher average weight loss (20.9%) in clinical trials compared to Wegovy (14.9%), though both are highly effective. Individual results vary, and the best choice depends on your budget, tolerability, and clinical assessment.
Can I switch from Wegovy to Mounjaro or vice versa?
Yes, switching between Wegovy vs Mounjaro is possible under prescriber supervision. Your clinician will determine the appropriate starting dose based on your current treatment and response.
Is Wegovy vs Mounjaro pricing significantly different in the UK?
Yes — Wegovy starts from £124.99 at Cured Pharmacy, while Mounjaro starts from £124.99. Both offer excellent value, with new patients saving £124.99 using code Weightlossnew.
Do Wegovy vs Mounjaro have the same side effects?
Both medications share similar gastrointestinal side effects including nausea, diarrhoea, and constipation. Some patients find one better tolerated than the other, which can influence the choice between Wegovy vs Mounjaro.
How long does it take to see results with Wegovy vs Mounjaro?
Most patients notice appetite suppression within 1-2 weeks and measurable weight loss within 4 weeks on either medication. Peak efficacy typically occurs after 3-6 months of dose escalation.
Are Wegovy vs Mounjaro available on the NHS?
Both are NICE-approved but NHS availability is extremely limited due to supply constraints and strict eligibility criteria. Private prescriptions through UK-registered pharmacies like Cured Pharmacy offer faster, reliable access.
Which is more affordable long-term when comparing Wegovy vs Mounjaro?
Wegovy is more affordable at £124.99 per month compared to Mounjaro at £124.99, making it a better option for patients prioritising long-term cost-effectiveness while still achieving significant weight loss.
Do I need a prescription for Wegovy vs Mounjaro in the UK?
Yes, both are prescription-only medications requiring clinical assessment by a UK-registered prescriber. Cured Pharmacy offers a free online consultation that takes under 3 minutes to complete.
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


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