Mounjaro vs Wegovy UK - Compare Prices & Cheapest Option

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Cheapest Mounjaro vs Wegovy UK - Compare Prices

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

When comparing Mounjaro vs Wegovy UK options, both GLP-1 receptor agonist injections offer clinically proven weight loss, but they work through different mechanisms and deliver distinct results. Mounjaro (tirzepatide) targets both GIP and GLP-1 receptors, whilst Wegovy (semaglutide) acts solely on GLP-1 receptors, a difference that translates to varied efficacy profiles and side effect experiences [1]. Understanding the clinical evidence, dosing protocols, and pricing differences helps you make an informed choice with your prescriber's guidance.

How Mounjaro vs Wegovy UK Treatments Work Differently

The fundamental difference in Mounjaro vs Wegovy UK treatments lies in their receptor activity. Mounjaro (tirzepatide) is a dual GIP/GLP-1 receptor agonist, meaning it activates both glucose-dependent insulinotropic polypeptide and glucagon-like peptide-1 receptors simultaneously [1]. This dual action enhances insulin secretion, reduces glucagon release, slows gastric emptying, and decreases appetite through complementary pathways. Wegovy (semaglutide) is a selective GLP-1 receptor agonist that works through a single pathway to achieve similar metabolic effects, though the dual mechanism of Mounjaro often translates to greater weight reduction in head-to-head comparisons.

Clinical trial data demonstrates this mechanistic difference in practice. The SURPASS-2 trial directly compared tirzepatide against semaglutide 1mg in adults with type 2 diabetes, showing that tirzepatide 15mg produced an average weight loss of 11.2kg compared to 5.7kg with semaglutide over 40 weeks [2]. Whilst Wegovy uses a higher 2.4mg maintenance dose than the semaglutide comparator in that trial, the dual receptor engagement of Mounjaro consistently delivers superior weight loss outcomes across dosing tiers. Both medications require subcutaneous injection once weekly and are subject to prescriber approval following clinical assessment.

Receptor Mechanisms and Metabolic Impact

The GIP receptor activation unique to Mounjaro enhances fat metabolism and may improve insulin sensitivity beyond GLP-1 activity alone, though the precise contribution of GIP signalling to weight loss remains an active area of research [1]. GLP-1 receptor agonism, shared by both treatments, directly reduces appetite through hypothalamic pathways and delays gastric emptying to prolong satiety. Patients often report feeling fuller for longer on both medications, though the intensity and duration of appetite suppression can vary individually. The dual-action profile of Mounjaro may offer metabolic advantages for those who require maximal weight reduction or have not achieved goals with GLP-1-only therapies.

Mounjaro vs Wegovy UK Weight Loss Results: Clinical Evidence

When evaluating Mounjaro vs Wegovy UK efficacy, clinical trial data provides the clearest comparison. The SURMOUNT-1 trial examined tirzepatide in adults without diabetes, demonstrating average weight loss of 15.0% with the 5mg dose, 19.5% with 10mg, and 20.9% with 15mg over 72 weeks [3]. Wegovy's STEP 1 trial showed an average weight loss of 14.9% with semaglutide 2.4mg over 68 weeks in a similar population [4]. Whilst both treatments deliver clinically significant results, Mounjaro's higher-dose tiers consistently outperform Wegovy's single maintenance dose, making it the preferred option for patients requiring greater weight reduction.

Real-world outcomes often mirror trial data, though individual responses vary based on adherence, lifestyle factors, and baseline metabolic health. Patients typically begin noticing weight loss within 4-8 weeks of initiating either treatment, with progressive reductions continuing throughout the titration phase. The weight loss trajectory tends to plateau after 60-72 weeks, at which point maintenance dosing sustains achieved reductions. Both Mounjaro and Wegovy require ongoing treatment to maintain weight loss, as discontinuation typically results in weight regain [3][4]. Your prescriber will help determine which treatment aligns with your weight loss goals and medical history during your clinical assessment.

Mounjaro vs Wegovy UK Dosing Schedules and Titration

The dosing protocols for Mounjaro vs Wegovy UK treatments follow structured titration schedules to minimise gastrointestinal side effects whilst optimising efficacy. Mounjaro begins at 2.5mg weekly for four weeks, then increases to 5mg for at least four weeks, with optional escalation to 7.5mg, 10mg, 12.5mg, or 15mg based on response and tolerability [1]. Wegovy starts at 0.25mg weekly, increasing monthly through 0.5mg, 1mg, and 1.7mg before reaching the 2.4mg maintenance dose, typically over 16-20 weeks [4]. Both titration pathways allow the body to adapt gradually, reducing the likelihood of nausea and vomiting that can occur with abrupt GLP-1 receptor engagement.

Patients who experience persistent side effects may remain at a lower dose rather than escalating, and prescribers can adjust titration speed based on individual tolerance. Mounjaro's broader dose range offers more flexibility for fine-tuning treatment intensity, whilst Wegovy's fixed maintenance dose simplifies long-term management. Both medications are administered via pre-filled injection pens designed for subcutaneous injection into the abdomen, thigh, or upper arm. Injection technique training is provided during your clinical consultation, and the once-weekly schedule supports adherence compared to daily weight loss medications.

Adjusting Doses for Optimal Results

Dose adjustments in Mounjaro vs Wegovy UK treatment plans depend on weight loss progress, side effect profile, and individual goals. If weight loss plateaus on a given dose, your prescriber may recommend escalation after at least four weeks of stable dosing. Conversely, if gastrointestinal symptoms prove intolerable, temporarily remaining at a lower dose or slowing titration can improve adherence without abandoning treatment. Clinical guidance emphasises that slower titration often yields better long-term adherence than aggressive dose escalation, as patients who experience severe early side effects are more likely to discontinue therapy prematurely [2].

Feature Mounjaro Wegovy
Active Ingredient Tirzepatide Semaglutide
Receptor Target Dual GIP/GLP-1 GLP-1 only
Starting Dose 2.5mg weekly 0.25mg weekly
Maintenance Dose 5-15mg weekly 2.4mg weekly
Average Weight Loss Up to 20.9% (72 weeks) 14.9% (68 weeks)
Starting Price From £145.00 From £89.00
Injection Frequency Once weekly Once weekly
Titration Duration 8-20 weeks 16-20 weeks

Side Effects: Mounjaro vs Wegovy UK Tolerability Profiles

The side effect profiles of Mounjaro vs Wegovy UK treatments overlap significantly due to their shared GLP-1 receptor activity, though dual receptor engagement in Mounjaro may influence symptom frequency and intensity. The most common adverse effects for both medications include nausea, diarrhoea, vomiting, constipation, abdominal discomfort, and reduced appetite [1][4]. These gastrointestinal symptoms typically emerge during dose escalation and often diminish over subsequent weeks as the body adapts. In SURPASS trials, approximately 10-20% of tirzepatide users reported nausea, compared to similar rates in STEP trials for semaglutide, with higher doses generally correlating with increased symptom frequency [2][3].

Serious adverse effects are rare but require clinical awareness. Both treatments carry a boxed warning regarding thyroid C-cell tumours observed in rodent studies, though no causal link has been established in humans [1][4]. Patients with a personal or family history of medullary thyroid carcinoma or multiple endocrine neoplasia syndrome type 2 should not use either medication. Pancreatitis, gallbladder disease, and hypoglycaemia (particularly when combined with insulin or sulfonylureas) are additional risks requiring monitoring. If you experience severe abdominal pain, persistent vomiting, or signs of pancreatitis, seek immediate medical attention and contact your prescriber. Most patients tolerate both Mounjaro and Wegovy well when titration protocols are followed carefully.

Managing Gastrointestinal Symptoms

Practical strategies can mitigate the gastrointestinal side effects common to both Mounjaro vs Wegovy UK treatments. Eating smaller, more frequent meals reduces the burden on delayed gastric emptying, whilst avoiding high-fat and spicy foods minimises nausea triggers. Staying well-hydrated helps manage constipation, and over-the-counter anti-emetics may provide relief for persistent nausea, though you should consult your prescriber before adding any new medications. Symptoms typically improve after 4-8 weeks at a stable dose, and many patients find that side effects become negligible once they reach maintenance dosing [2].

Mounjaro vs Wegovy UK Pricing and Accessibility

When comparing Mounjaro vs Wegovy UK costs, pricing structures reflect dose complexity and market positioning. At Cured Pharmacy, Mounjaro is available from £124.99 for the starting 2.5mg dose, with higher-strength pens priced according to dose escalation, whilst Wegovy starts from £124.99 for the 0.25mg pen, increasing through the titration schedule to the 2.4mg maintenance dose. Both treatments require ongoing monthly prescriptions, and the total cost over a 12-month treatment course will depend on your final maintenance dose and titration speed. Cured Pharmacy offers transparent upfront pricing before your clinical consultation, ensuring no hidden fees or unexpected charges.

NHS availability for Mounjaro and Wegovy remains limited due to NICE guidance restrictions and supply constraints. NICE currently recommends semaglutide 2.4mg (Wegovy) for weight management in adults with at least one weight-related comorbidity and a BMI of 35 kg/m² or higher, or 30 kg/m² with specific conditions, though access varies by integrated care board [4]. Tirzepatide (Mounjaro) received MHRA approval for weight management in 2024, but widespread NHS commissioning has not yet occurred. Private prescriptions through UK-registered online pharmacies like Cured Pharmacy provide reliable access for eligible patients, with clinical assessments conducted by GMC-registered prescribers and medications dispensed by our GPhC-registered pharmacy team under superintendent pharmacist Tarun Kumar (GPhC 2233073).

Choosing Between Mounjaro vs Wegovy UK: Clinical Considerations

Deciding between Mounjaro vs Wegovy UK treatments requires personalised clinical assessment that weighs efficacy goals, tolerability expectations, medical history, and cost considerations. Mounjaro may be preferable for patients who require maximal weight loss, have not achieved goals with GLP-1-only therapies, or seek flexible dose titration options. Wegovy remains an excellent choice for those seeking proven GLP-1 efficacy with a simpler fixed-dose maintenance regimen and lower starting cost. Both medications require commitment to weekly injections and lifestyle modifications, including a reduced-calorie diet and increased physical activity, to achieve optimal results [3][4].

Your prescriber will evaluate contraindications, including personal or family history of medullary thyroid carcinoma, multiple endocrine neoplasia syndrome type 2, and severe gastrointestinal disease. Concurrent medications, particularly insulin and sulfonylureas, may require dose adjustments to prevent hypoglycaemia. Pregnancy and breastfeeding are contraindications for both treatments, and effective contraception is recommended for women of childbearing potential due to unknown foetal risks. The online clinical assessment at Cured Pharmacy takes under three minutes and ensures that your chosen treatment aligns with your medical profile and weight management objectives, with prescriptions issued only when clinically appropriate.

Long-Term Treatment Planning

Long-term success with Mounjaro vs Wegovy UK treatments depends on sustained adherence and lifestyle integration. Clinical trials demonstrate that weight loss benefits persist as long as treatment continues, but discontinuation typically results in weight regain within 12 months [3][4]. Planning for indefinite treatment duration helps set realistic expectations, though some patients may transition to maintenance doses or alternative therapies after achieving their goals. Regular follow-up with your prescriber ensures dose optimisation, side effect management, and monitoring for rare adverse events, supporting safe and effective long-term weight management.

Scientific References

  1. Medicines and Healthcare products Regulatory Agency. (2024). Mounjaro 2.5 mg solution for injection in pre-filled pen: Summary of Product Characteristics. MHRA. [accessed 15 August 2026]
  2. Frías, J. P., Davies, M. J., Rosenstock, J., et al. (2021). Tirzepatide versus semaglutide once weekly in patients with type 2 diabetes (SURPASS-2): a randomised, open-label, phase 3 trial. The Lancet, 398(10295), 143-155. [accessed 15 August 2026]
  3. 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]
  4. Wilding, J. P., 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]
  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.

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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 more effective, Mounjaro or Wegovy?
Clinical trials show Mounjaro (tirzepatide) delivers greater average weight loss than Wegovy (semaglutide), with up to 20.9% body weight reduction compared to 14.9% at the highest doses. Individual results vary based on adherence, lifestyle factors, and metabolic health.
Is Mounjaro vs Wegovy UK pricing significantly different?
Yes, Mounjaro starts from £124.99 whilst Wegovy begins at £124.99 at Cured Pharmacy, though total treatment costs depend on your maintenance dose and titration schedule. Both require ongoing monthly prescriptions for sustained weight loss.
Can I switch from Wegovy to Mounjaro or vice versa?
Switching between Mounjaro vs Wegovy UK treatments is possible under prescriber guidance, typically starting at a low dose of the new medication to minimise side effects. Your prescriber will determine the appropriate transition protocol based on your current dose and tolerance.
Do Mounjaro and Wegovy have the same side effects?
Both share common gastrointestinal side effects like nausea, diarrhoea, and vomiting due to GLP-1 receptor activity, though individual experiences vary. Mounjaro's dual receptor mechanism may influence symptom frequency, but clinical trial data shows similar overall tolerability profiles.
How long does it take to see results with Mounjaro vs Wegovy UK treatments?
Most patients notice initial weight loss within 4-8 weeks of starting either medication, with progressive reductions continuing throughout the titration phase. Maximum weight loss typically occurs after 60-72 weeks of treatment.
Are Mounjaro and Wegovy available on the NHS?
NHS access is limited due to NICE guidance restrictions and supply constraints. Wegovy has conditional NICE approval for specific patient groups, whilst Mounjaro's NHS commissioning is not yet widespread. Private prescriptions through UK-registered pharmacies like Cured Pharmacy provide reliable access.
Can I use Mounjaro or Wegovy if I have type 2 diabetes?
Both Mounjaro and Wegovy are suitable for adults with type 2 diabetes, though dose adjustments of concurrent diabetes medications may be necessary to prevent hypoglycaemia. Your prescriber will review your full medication list during clinical assessment.
What happens if I miss a dose of Mounjaro or Wegovy?
If you miss a dose and it has been less than 4 days (96 hours), administer the missed dose as soon as possible. If more than 4 days have passed, skip the missed dose and resume your regular weekly schedule. Never double dose to compensate.
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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