0.5mg Wegovy vs Mounjaro UK - Compare Prices & Efficacy

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Cheapest 0.5mg Wegovy vs Mounjaro UK - Compare Prices

Compare 0.5mg Wegovy vs Mounjaro at the cheapest UK prices from £124.99 with £20 off using 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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0.5mg Wegovy vs Mounjaro: Which Weight Loss Injection Works Best in the UK?

When comparing 0.5mg Wegovy vs Mounjaro, UK patients often ask which GLP-1 receptor agonist delivers superior weight loss results. Both medications have transformed obesity treatment through once-weekly subcutaneous injections, but they work through different mechanisms and show distinct efficacy profiles in clinical trials. Understanding these differences helps you and your prescriber choose the most suitable treatment for your weight management journey.

How 0.5mg Wegovy vs Mounjaro Differ in Mechanism of Action

The fundamental difference between 0.5mg Wegovy vs Mounjaro lies in their receptor activity. Wegovy contains semaglutide, a GLP-1 receptor agonist that mimics a single gut hormone to regulate appetite and blood glucose[1]. Mounjaro contains tirzepatide, the first dual GIP/GLP-1 receptor agonist, which activates two incretin pathways simultaneously to enhance metabolic effects[2].

This dual-action mechanism gives Mounjaro a theoretical advantage in weight reduction. Clinical trials demonstrate that tirzepatide's activation of both glucose-dependent insulinotropic polypeptide (GIP) and GLP-1 receptors produces complementary effects on insulin secretion, glucagon suppression, and gastric emptying[2]. Semaglutide's single-pathway action remains highly effective, with the STEP trial programme showing substantial weight loss outcomes through GLP-1 receptor stimulation alone[1].

Both medications slow gastric emptying and reduce appetite through central nervous system pathways, but tirzepatide's dual receptor engagement may produce greater satiety signals. In our clinical experience at Cured Pharmacy, patients respond individually to each medication, and the 0.5mg dose represents an early titration stage for Wegovy whilst Mounjaro's starting dose is 2.5mg, making direct dose comparison complex.

Clinical Trial Data: 0.5mg Wegovy vs Mounjaro Weight Loss Results

When evaluating 0.5mg Wegovy vs Mounjaro efficacy, it's essential to understand that 0.5mg represents Wegovy's second titration dose, not the maintenance level. The STEP 1 trial showed that semaglutide 2.4mg (Wegovy's maintenance dose) produced an average weight loss of 14.9% over 68 weeks[1]. Patients don't remain on 0.5mg Wegovy long-term; this dose is typically used for 4 weeks during dose escalation.

Mounjaro's SURMOUNT-1 trial demonstrated superior weight loss outcomes, with the 15mg maintenance dose achieving average weight reduction of 20.9% over 72 weeks[2]. The 5mg dose produced 15.0% average weight loss, and even the lowest maintenance dose of 10mg showed 19.5% reduction[2]. These results position tirzepatide ahead of semaglutide in head-to-head efficacy comparisons at maintenance doses.

However, comparing 0.5mg Wegovy vs Mounjaro's starting dose (2.5mg) isn't clinically meaningful for long-term outcomes. Both medications require gradual titration to minimise gastrointestinal side effects, and patients typically reach maintenance doses within 16-20 weeks. The true efficacy comparison emerges at maintenance levels, where Mounjaro demonstrates a modest but consistent advantage in average weight loss percentages achieved in clinical trials.

Real-World Weight Loss Expectations

In our experience dispensing both medications at Cured Pharmacy, individual responses to 0.5mg Wegovy vs Mounjaro vary considerably. Some patients achieve excellent results with semaglutide and experience fewer side effects, whilst others benefit from tirzepatide's dual mechanism. Clinical trials show average outcomes, but your personal response depends on metabolic factors, adherence to lifestyle modifications, and tolerance to dose escalation. All prescription weight loss treatments work best when combined with reduced-calorie nutrition and increased physical activity, as demonstrated in the trial protocols[1][2].

Side Effects Profile: 0.5mg Wegovy vs Mounjaro Tolerability

The side effects profile represents a crucial consideration when choosing between 0.5mg Wegovy vs Mounjaro. Both medications share similar gastrointestinal adverse effects due to their mechanism of slowing gastric emptying. The most common side effects include nausea, diarrhoea, vomiting, constipation, and abdominal discomfort[3][4].

In the STEP trials, approximately 44% of semaglutide patients experienced nausea, typically most pronounced during dose escalation[3]. The SURMOUNT trials reported similar gastrointestinal effects with tirzepatide, with nausea affecting 33-36% of patients across dose groups[4]. These symptoms generally diminish over time as the body adapts to the medication.

At the 0.5mg Wegovy vs Mounjaro starting doses, side effects tend to be milder than at maintenance levels. The gradual titration schedule exists specifically to improve tolerability. Our clinical team at Cured Pharmacy advises patients to take injections with food, stay well-hydrated, and report persistent symptoms to their prescriber. Serious side effects such as pancreatitis, gallbladder disease, and thyroid tumours remain rare but require immediate medical attention if symptoms develop.

Managing Common Side Effects

Whether you're prescribed 0.5mg Wegovy vs Mounjaro, practical strategies can minimise gastrointestinal discomfort. Eat smaller, more frequent meals rather than large portions. Avoid high-fat, greasy, or spicy foods that may worsen nausea. Stay upright for at least 30 minutes after eating to reduce reflux symptoms. If side effects become intolerable, contact your prescriber before your next dose—they may adjust your titration schedule. Never increase your dose faster than prescribed, as this significantly increases the risk of severe nausea and vomiting.

Feature Wegovy 0.5mg Mounjaro 2.5mg
Active Ingredient Semaglutide Tirzepatide
Mechanism GLP-1 receptor agonist Dual GIP/GLP-1 receptor agonist
Dose Stage Second titration dose (month 2) Starting dose (month 1)
Maintenance Dose 2.4mg weekly 5mg, 10mg, or 15mg weekly
Average Weight Loss at Maintenance 14.9% (2.4mg dose) 15.0-20.9% (dose-dependent)
Starting Price at Cured Pharmacy From £109.00 From £145.00
Injection Frequency Once weekly Once weekly
Common Side Effects Nausea, diarrhoea, constipation Nausea, diarrhoea, constipation
Prescription Required Yes - UK prescriber assessment Yes - UK prescriber assessment

Dosing Schedules: 0.5mg Wegovy vs Mounjaro Titration Pathways

The dosing journey differs substantially when comparing 0.5mg Wegovy vs Mounjaro titration protocols. Wegovy follows a five-step escalation: 0.25mg for 4 weeks, 0.5mg for 4 weeks, 1mg for 4 weeks, 1.7mg for 4 weeks, then 2.4mg as the maintenance dose[5]. The 0.5mg dose represents the second month of treatment, helping your body gradually adapt to higher semaglutide levels.

Mounjaro uses a different titration approach, starting at 2.5mg for at least 4 weeks, then increasing by 2.5mg increments every 4 weeks as tolerated[6]. The maintenance dose ranges from 5mg to 15mg depending on individual response and tolerability. This means Mounjaro patients begin at a higher absolute dose than Wegovy's initial 0.25mg, though the physiological impact differs due to the medications' distinct receptor activities.

Both medications are administered as once-weekly subcutaneous injections, typically in the abdomen, thigh, or upper arm. The injection can be taken any day of the week, at any time, with or without food. Consistency matters—choose the same day each week to maintain steady medication levels. If you miss a dose and it's within 5 days of the scheduled injection, take it as soon as possible; if more than 5 days have passed, skip that dose and resume your regular schedule.

Cost Comparison: 0.5mg Wegovy vs Mounjaro UK Pricing

Pricing represents a significant factor when evaluating 0.5mg Wegovy vs Mounjaro options in the UK. At Cured Pharmacy, Wegovy starts from £124.99 for the 0.25mg starter dose, with the 0.5mg dose priced competitively as part of the titration programme. Mounjaro pricing begins at £124.99 for the 2.5mg starting dose. New patients can Save £20 off their first order using code Weightlossnew, making either treatment more accessible.

The total cost of treatment depends on your maintenance dose and treatment duration. Most patients require 6-12 months of continuous treatment to achieve significant weight loss, with some continuing long-term for weight maintenance. Unlike some online pharmacies that hide prices behind consultations, Cured Pharmacy displays transparent upfront pricing so you can make informed financial decisions before completing your clinical assessment.

Neither Wegovy nor Mounjaro is routinely available on NHS prescription for weight loss alone, though eligibility criteria exist for patients with specific BMI thresholds and comorbidities. Private prescription remains the primary access route for most UK patients. When comparing 0.5mg Wegovy vs Mounjaro costs, consider the full titration pathway and your likely maintenance dose, not just the starting price. Our pharmacist team can discuss cost-effective treatment strategies during your consultation.

Maximising Value from Your Treatment

Whether choosing 0.5mg Wegovy vs Mounjaro, maximising treatment value requires commitment to lifestyle changes alongside medication. Clinical trials included structured diet and exercise programmes, and real-world results depend heavily on these behavioural modifications[1][2]. Track your food intake, aim for 150 minutes of moderate activity weekly, and attend follow-up consultations to monitor progress. The medication creates a physiological advantage by reducing appetite and cravings, but sustainable weight loss requires comprehensive lifestyle adaptation. Patients who combine medication with meaningful behaviour change achieve the best long-term outcomes and return on their investment.

Choosing Between 0.5mg Wegovy vs Mounjaro: Clinical Considerations

The decision between 0.5mg Wegovy vs Mounjaro should be made collaboratively with a UK-registered prescriber who can assess your individual medical history, weight loss goals, and risk factors. Both medications require prescription-only access and are subject to clinical approval based on BMI criteria and obesity-related comorbidities. At Cured Pharmacy, our online consultation takes under 3 minutes and is reviewed by experienced UK prescribers.

Certain medical conditions may favour one medication over the other. Patients with a personal or family history of medullary thyroid carcinoma or multiple endocrine neoplasia syndrome type 2 should not use either medication[5][6]. Those with severe gastrointestinal disease may require careful monitoring. Your prescriber will review your complete medical history, current medications, and previous weight loss attempts to recommend the most appropriate treatment.

Individual response varies significantly, and some patients who don't achieve adequate results with semaglutide may respond better to tirzepatide, or vice versa. The 0.5mg Wegovy vs Mounjaro comparison isn't simply about choosing the 'better' medication—it's about identifying which treatment aligns with your physiology, lifestyle, budget, and clinical profile. Our clinical team at Cured Pharmacy, led by Superintendent Pharmacist Tarun Kumar (GPhC 2233073), provides ongoing support throughout your treatment journey to optimise outcomes and manage any concerns that arise.

Scientific References

  1. Wilding, J. P., Batterham, R. L., Calanna, S., Davies, M., Van Gaal, L. F., Lingvay, I., ... & Kushner, R. F. (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., Wharton, S., Connery, L., Alves, B., ... & Bunck, M. C. (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., Buscemi, S., Christensen, L. N., Frias, J. P., ... & Wharton, S. (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. Aronne, L. J., Sattar, N., Horn, D. B., Bays, H. E., Wharton, S., Lin, W. Y., ... & Jastreboff, A. M. (2024). Continued treatment with tirzepatide for maintenance of weight reduction in adults with obesity: the SURMOUNT-4 randomized clinical trial. JAMA, 331(1), 38-48. [accessed 15 August 2026]
  5. Novo Nordisk. (2023). Wegovy 2.4 mg solution for injection in pre-filled pen: Summary of Product Characteristics. Medicines and Healthcare products Regulatory Agency. [accessed 15 August 2026]
  6. Eli Lilly. (2023). Mounjaro 2.5 mg solution for injection in pre-filled pen: Summary of Product Characteristics. Medicines and Healthcare products Regulatory Agency. [accessed 15 August 2026]
  7. NHS. (2026). Tirzepatide: a medicine to manage type 2 diabetes and treat obesity. https://www.nhs.uk/medicines/tirzepatide/ Accessed 15 August 2026.
  8. NHS. (2026). Overweight and obesity in adults. https://www.nhs.uk/conditions/overweight-and-obesity/ Accessed 15 August 2026.
  9. 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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"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."

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"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."

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"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."

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Faq

Is 0.5mg Wegovy vs Mounjaro a fair dose comparison?
No, 0.5mg Wegovy is a second-month titration dose whilst Mounjaro starts at 2.5mg, making direct comparison at these doses less clinically meaningful. Fair efficacy comparison occurs at maintenance doses: Wegovy 2.4mg vs Mounjaro 5-15mg.
Which is more effective for weight loss, 0.5mg Wegovy vs Mounjaro?
At maintenance doses, Mounjaro (tirzepatide) shows superior average weight loss in clinical trials—up to 20.9% vs 14.9% for Wegovy (semaglutide). Individual responses vary, and both medications require prescriber assessment and lifestyle modifications.
Can I switch from 0.5mg Wegovy to Mounjaro?
Switching between GLP-1 medications requires prescriber supervision to ensure safe transition and appropriate dosing. Your prescriber will create a switching protocol based on your current dose, response, and tolerability. Never switch medications without clinical guidance.
What are the main side effects of 0.5mg Wegovy vs Mounjaro?
Both medications share similar gastrointestinal side effects including nausea, diarrhoea, vomiting, and constipation. These typically diminish over time and are generally milder at lower titration doses than at maintenance levels.
How much does 0.5mg Wegovy vs Mounjaro cost in the UK?
At Cured Pharmacy, Wegovy starts from £124.99 and Mounjaro from £124.99. New patients Save £20 with code Weightlossnew. Total treatment cost depends on your maintenance dose and treatment duration.
Do I need a prescription for 0.5mg Wegovy or Mounjaro?
Yes, both are prescription-only medicines requiring clinical assessment by a UK-registered prescriber. Cured Pharmacy offers free online consultations reviewed by our clinical team, typically completed in under 3 minutes.
How long does it take to see results with 0.5mg Wegovy vs Mounjaro?
Most patients notice appetite reduction within 1-2 weeks of starting either medication. Significant weight loss typically becomes apparent after reaching maintenance doses (16-20 weeks), with maximum effects seen over 6-12 months of continuous treatment.
Which has fewer side effects, 0.5mg Wegovy vs Mounjaro?
Side effect profiles are similar, with nausea affecting 33-44% of patients across both medications. Individual tolerability varies—some patients tolerate semaglutide better, whilst others prefer tirzepatide. Your prescriber can adjust titration schedules to minimise adverse effects.
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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