Mounjaro vs Wegovy UK - Compare Prices & Effectiveness

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Cheapest Mounjaro vs Wegovy UK - Compare Prices

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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, patients often ask which delivers better weight loss results and represents better value. Both are prescription-only GLP-1 receptor agonist injections licensed by the MHRA for chronic weight management, but they work through different mechanisms and show distinct efficacy profiles in clinical trials. This comprehensive comparison examines the clinical evidence, side effects, dosing schedules, and UK pricing to help you make an informed decision with your prescriber.

How Mounjaro vs Wegovy UK Treatments Differ Clinically

The fundamental difference in the Mounjaro vs Wegovy UK comparison lies in their active ingredients and receptor activity. Mounjaro contains tirzepatide, a dual GIP/GLP-1 receptor agonist that activates both glucose-dependent insulinotropic polypeptide and glucagon-like peptide-1 receptors [1]. Wegovy contains semaglutide, a selective GLP-1 receptor agonist that works through a single pathway [2]. This dual-action mechanism gives Mounjaro a distinct pharmacological profile that may explain differences in weight loss outcomes observed in head-to-head trials.

Both medications slow gastric emptying, reduce appetite, and improve glycaemic control, but tirzepatide's additional GIP receptor activation appears to enhance fat metabolism and insulin sensitivity beyond what semaglutide achieves alone [1]. In clinical practice, this translates to different dosing schedules and titration protocols. Mounjaro starts at 2.5mg weekly and increases to a maximum maintenance dose of 15mg, whilst Wegovy begins at 0.25mg weekly and escalates to 2.4mg over 16-20 weeks [2]. The slower titration with Wegovy aims to minimise gastrointestinal side effects during the adjustment period.

Mounjaro vs Wegovy UK Clinical Trial Results and Weight Loss Data

Direct comparison data from the SURPASS-2 trial, which compared tirzepatide against semaglutide 1mg in type 2 diabetes patients, showed superior weight loss with tirzepatide across all dose levels [3]. Participants on tirzepatide 15mg lost an average of 11.2kg compared to 5.7kg with semaglutide 1mg over 40 weeks. Whilst this trial used a lower semaglutide dose than Wegovy's 2.4mg maintenance dose, it demonstrates tirzepatide's potent weight reduction capacity.

The STEP 1 trial for Wegovy showed participants lost an average of 14.9% of their body weight over 68 weeks on semaglutide 2.4mg [2]. The SURMOUNT-1 trial for Mounjaro demonstrated even greater results, with participants losing up to 22.5% of body weight on the 15mg dose over 72 weeks [1]. When evaluating Mounjaro vs Wegovy UK options, these trial outcomes suggest Mounjaro may deliver approximately 5-8% greater total body weight reduction at maximum doses, though individual responses vary considerably and both medications require ongoing lifestyle modifications for optimal results.

Real-World Effectiveness in UK Patients

Clinical trial data represents controlled conditions, but real-world UK prescribing patterns show both medications deliver meaningful weight loss when combined with dietary changes and increased physical activity. Our clinical team at Cured Pharmacy has supported thousands of patients through weight loss programmes with both treatments. Adherence to the weekly injection schedule and tolerance of gastrointestinal side effects during titration are the primary factors determining long-term success, regardless of which medication is prescribed. Subject to prescriber approval, either option can be appropriate depending on your medical history, previous treatment responses, and cost considerations.

Side Effects: Mounjaro vs Wegovy UK Tolerability Profiles

The side effect profiles for Mounjaro vs Wegovy UK treatments overlap substantially because both medications work through GLP-1 receptor pathways. The most commonly reported adverse effects include nausea, diarrhoea, vomiting, constipation, and abdominal discomfort, particularly during dose escalation phases [1][2]. In the SURMOUNT-1 trial, gastrointestinal events led to treatment discontinuation in approximately 6.2% of tirzepatide participants, whilst STEP trials showed similar discontinuation rates of 4.5-7% for semaglutide [2][3].

Some patients report that Mounjaro's dual-receptor action produces slightly different subjective tolerability, though this varies individually. Both medications carry warnings for potential thyroid C-cell tumours based on rodent studies, and neither should be used in patients with a personal or family history of medullary thyroid carcinoma or Multiple Endocrine Neoplasia syndrome type 2 [1][2]. Pancreatitis risk exists with both treatments, and prescribers carefully screen for contraindications during clinical assessment. When comparing Mounjaro vs Wegovy UK side effect experiences, most patients find the gastrointestinal symptoms manageable and diminishing after the first 4-8 weeks as their body adjusts to the medication.

Managing Side Effects During Treatment

Whether you're prescribed Mounjaro or Wegovy following clinical assessment, practical strategies can minimise side effects. Eating smaller, more frequent meals, avoiding high-fat foods, staying well-hydrated, and timing injections consistently help reduce nausea and digestive discomfort. Our superintendent pharmacist Tarun Kumar (GPhC 2233073) and clinical team provide ongoing support throughout your treatment journey. If side effects become problematic, your prescriber may adjust the titration schedule or consider alternative approaches. Never adjust your dose without consulting your healthcare professional.

Feature Mounjaro (Tirzepatide) Wegovy (Semaglutide)
Active Ingredient Tirzepatide (dual GIP/GLP-1) Semaglutide (GLP-1 only)
Maximum Dose 15mg weekly 2.4mg weekly
Average Weight Loss Up to 22.5% over 72 weeks Up to 14.9% over 68 weeks
Starting Dose 2.5mg weekly 0.25mg weekly
Titration Period 20-24 weeks to max dose 16-20 weeks to max dose
Injection Frequency Once weekly Once weekly
UK Price at Cured Pharmacy From £145.00/month From £89.00/month
Common Side Effects Nausea, diarrhoea, vomiting Nausea, diarrhoea, vomiting
MHRA Licensed Yes Yes
Prescription Required Yes Yes

Mounjaro vs Wegovy UK Pricing and Value Comparison

Cost represents a significant consideration when evaluating Mounjaro vs Wegovy UK treatment options, as neither medication is currently funded by the NHS for weight management in most clinical commissioning groups. At Cured Pharmacy, Mounjaro is available from £124.99 per month following online clinical assessment, whilst Wegovy starts from £124.99 monthly [4]. The price difference reflects manufacturing costs, market positioning, and dose titration schedules rather than clinical superiority.

When calculating total treatment costs for Mounjaro vs Wegovy UK programmes, consider that both medications typically require 12-18 months of continuous use to achieve and maintain optimal weight loss results. Mounjaro's higher monthly cost may be offset by greater average weight reduction in clinical trials, potentially requiring fewer total months of treatment to reach your goal weight. Conversely, Wegovy's lower starting price makes it more accessible for patients with budget constraints. New patients at Cured Pharmacy can Save £20 off their first order using code Weightlossnew, and we guarantee the lowest UK prices with transparent pricing shown before your consultation begins.

Dosing and Administration: Mounjaro vs Wegovy UK Schedules

Both Mounjaro and Wegovy are administered as once-weekly subcutaneous injections using pre-filled pens, making the practical administration process nearly identical. The key difference in Mounjaro vs Wegovy UK dosing lies in the titration schedule and maximum doses. Mounjaro follows a structured escalation: 2.5mg for 4 weeks, then 5mg, 7.5mg, 10mg, 12.5mg, and finally 15mg if needed, with each increase occurring at 4-week intervals based on tolerability and response [1].

Wegovy's titration extends over a longer period: 0.25mg weekly for 4 weeks, 0.5mg for 4 weeks, 1mg for 4 weeks, 1.7mg for 4 weeks, and finally the maintenance dose of 2.4mg [2]. This more gradual escalation may suit patients particularly concerned about gastrointestinal side effects. Both medications can be injected into the abdomen, thigh, or upper arm, and injection sites should be rotated weekly. When comparing Mounjaro vs Wegovy UK treatment experiences, patients generally find both injection systems straightforward and discreet to use at home after initial training from a healthcare professional.

Injection Technique and Storage Requirements

Proper storage and injection technique ensure optimal efficacy for both treatments. Mounjaro and Wegovy pens must be refrigerated at 2-8°C before first use, though they can be kept at room temperature (below 30°C) for up to 21 days once in use [1][2]. Detailed injection instructions are provided with your medication, and our clinical team at Cured Pharmacy offers guidance during your treatment programme. Both pens are designed for single-patient use only and should never be shared, even if the needle is changed. Subject to prescriber approval and proper training, self-administration is safe and convenient for most patients.

Which Is Better: Mounjaro vs Wegovy UK Prescriber Considerations

The question of which medication is objectively better in the Mounjaro vs Wegovy UK comparison cannot be answered universally, as the optimal choice depends on individual patient factors. Prescribers consider your BMI, weight loss goals, previous medication responses, medical history, budget, and tolerance for potential side effects when recommending treatment. Patients who have previously used liraglutide (Saxenda) with partial success might benefit from escalating to a more potent GLP-1 agonist like Wegovy, whilst those seeking maximum weight reduction and willing to accept higher costs may be suitable candidates for Mounjaro [3].

Clinical assessment through Cured Pharmacy's online consultation process allows UK-registered prescribers to evaluate your eligibility for either medication. Both require a BMI of 30 or above, or 27 or above with weight-related comorbidities such as hypertension or type 2 diabetes. Contraindications including pregnancy, breastfeeding, personal history of medullary thyroid carcinoma, or severe gastrointestinal disease preclude use of both medications [1][2]. The Mounjaro vs Wegovy UK decision ultimately rests with your prescriber's clinical judgement after reviewing your complete medical profile, and both represent evidence-based options for chronic weight management when used alongside lifestyle interventions.

Starting Your Weight Loss Journey at Cured Pharmacy

Whether you proceed with Mounjaro or Wegovy following clinical assessment, Cured Pharmacy provides comprehensive support throughout your treatment. Our UK-registered clinical team (GPhC 9012511) conducts thorough online consultations in under 3 minutes, with prescriptions reviewed by experienced prescribers including superintendent pharmacist Tarun Kumar (GPhC 2233073). We supply only genuine UK-licensed medications with discreet next-day delivery and ongoing clinical support. Transparent pricing means you see the exact cost before your consultation, with no hidden fees. To begin your Mounjaro vs Wegovy UK assessment, complete our confidential online consultation and receive expert guidance on the most appropriate treatment for your weight loss goals.

Scientific References

  1. 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]
  2. 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]
  3. 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), 64-77. [accessed 15 August 2026]
  4. Cured Pharmacy. (2025). Weight Loss Treatments - UK Online Pharmacy. Retrieved from https://curedpharmacy.com/collections/weight-loss [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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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

How much is Mounjaro 2.5mg?
Mounjaro 2.5mg costs from £124.99 at Cured Pharmacy, You just need to have a free online consultation, to check your eligibility.
How much is Mounjaro 5mg?
Mounjaro 5mg costs from £159.00 at Cured Pharmacy, You just need to have a free online consultation, to check your eligibility.
Is Mounjaro more effective than Wegovy for weight loss?
Clinical trials suggest Mounjaro (tirzepatide) may deliver greater average weight loss than Wegovy, with participants losing up to 22.5% of body weight compared to 14.9% with semaglutide, though individual responses vary and both are highly effective when combined with lifestyle changes.
Can I switch from Wegovy to Mounjaro or vice versa?
Switching between Mounjaro and Wegovy is possible under prescriber supervision, though a washout period and new titration schedule will be required. Discuss your treatment response and goals with your healthcare professional before making any changes.
Which has fewer side effects: Mounjaro vs Wegovy UK treatments?
Both Mounjaro and Wegovy share similar side effect profiles, predominantly gastrointestinal symptoms like nausea and diarrhoea. Clinical trial discontinuation rates due to adverse events are comparable at 4.5-7%, with individual tolerability varying between patients.
Why is Mounjaro more expensive than Wegovy in the UK?
Mounjaro's higher UK pricing reflects its newer market entry, dual-receptor mechanism, and manufacturing costs. At Cured Pharmacy, Mounjaro starts from £124.99 monthly compared to Wegovy from £124.99, with the price difference potentially justified by greater average weight loss in clinical trials.
How long does it take to see results with Mounjaro vs Wegovy?
Most patients notice appetite reduction within 1-2 weeks of starting either medication, with measurable weight loss typically evident by 4-8 weeks. Maximum weight loss occurs over 12-18 months of continuous treatment combined with dietary modifications and increased physical activity.
Do I need a prescription for Mounjaro and Wegovy in the UK?
Yes, both Mounjaro and Wegovy are prescription-only medicines in the UK that require clinical assessment by a registered prescriber. Cured Pharmacy provides free online consultations with UK-registered clinicians to determine your eligibility for either treatment.
Can I use Mounjaro or Wegovy if I have type 2 diabetes?
Both medications are suitable for patients with type 2 diabetes and may improve glycaemic control alongside weight loss. Your prescriber will review your current diabetes medications to ensure safe co-administration and may adjust doses of other treatments to prevent hypoglycaemia.
What happens if I miss a dose of Mounjaro or Wegovy?
If you miss a dose and remember within 4 days, inject as soon as possible then resume your regular weekly schedule. If more than 4 days have passed, skip the missed dose and take your next injection on the scheduled day. Never double doses to compensate for missed injections.
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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