Is Wegovy Better Than Mounjaro? UK Comparison & Prices

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Wegovy vs Mounjaro - Compare Prices & Cheapest UK Option

Compare Wegovy and Mounjaro at the cheapest UK price from £124.99 with £20 off using code Weightlossnew.

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£145.00 From £124.99 £20 discount using discount 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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Is Wegovy Better Than Mounjaro? Clinical Comparison for UK Patients

Is Wegovy better than Mounjaro? This is one of the most common questions we receive at Cured Pharmacy from patients exploring prescription weight loss injections. Both medications have transformed weight management outcomes in clinical trials, but they work differently and suit different patient profiles. Understanding the evidence behind semaglutide (Wegovy) and tirzepatide (Mounjaro) helps you make an informed decision with your prescriber.

Is Wegovy Better Than Mounjaro for Weight Loss Results?

When comparing clinical trial data, tirzepatide (Mounjaro) demonstrated slightly superior weight loss outcomes compared to semaglutide (Wegovy). In the SURPASS-2 trial, patients taking tirzepatide 15mg lost an average of 12.4kg over 40 weeks, whilst those on semaglutide 1mg lost 6.2kg [1]. The STEP trials showed Wegovy 2.4mg produced average weight loss of 14.9% of body weight over 68 weeks [2].

However, direct head-to-head comparisons reveal tirzepatide's dual-action mechanism targeting both GLP-1 and GIP receptors may offer an edge. A 2024 meta-analysis published in The Lancet found tirzepatide users achieved 2-3% greater total body weight reduction compared to semaglutide users at equivalent treatment durations [3]. Both medications require ongoing use to maintain results, and individual response varies significantly based on adherence, diet, and metabolic factors.

At Cured Pharmacy, we've observed that patient preference often depends on tolerability rather than pure efficacy numbers. Some individuals respond better to Wegovy's single-receptor action with fewer gastrointestinal side effects, whilst others tolerate Mounjaro's dual mechanism well and benefit from the additional weight loss. Your UK prescriber will assess your medical history, BMI, and previous treatment responses during your clinical consultation.

Is Wegovy Better Than Mounjaro in Terms of Side Effects?

Both medications share similar side effect profiles because they work on overlapping pathways in the GLP-1 receptor family. The most common adverse effects include nausea, vomiting, diarrhoea, constipation, and abdominal discomfort, particularly during dose escalation [4]. In clinical trials, approximately 44% of tirzepatide users and 42% of semaglutide users reported gastrointestinal symptoms.

Mounjaro's dual GLP-1/GIP action may produce slightly higher rates of nausea in the first 4-8 weeks, though most patients develop tolerance as their body adjusts. Wegovy users sometimes report injection site reactions and fatigue. Serious but rare risks include pancreatitis, gallbladder disease, and thyroid C-cell tumours (observed in rodent studies, not confirmed in humans) [5].

Neither medication is definitively "better" for side effects—individual tolerance varies. Starting with the lowest dose and following the recommended titration schedule minimises adverse reactions for both treatments. Our superintendent pharmacist Tarun Kumar advises patients to maintain adequate hydration and eat smaller, more frequent meals during the initial weeks to manage gastrointestinal symptoms effectively.

Managing Side Effects: Practical Guidance

Whether you choose Wegovy or Mounjaro, side effect management follows similar principles. Inject at the same time weekly, rotate injection sites (abdomen, thigh, upper arm), and avoid high-fat meals immediately after dosing. If nausea persists beyond 2-3 weeks at a stable dose, contact your prescriber—they may adjust your titration schedule or recommend anti-nausea strategies. Never increase your dose faster than the licensed schedule without medical supervision.

Is Wegovy Better Than Mounjaro for UK Availability and Cost?

Wegovy currently holds a pricing advantage in the UK market. At Cured Pharmacy, Wegovy starts from £124.99 per month, whilst Mounjaro begins at £124.99 [6]. Both medications are available through our UK-registered clinical team following a free online consultation that takes under 3 minutes to complete.

Supply availability has improved significantly for both treatments throughout 2024. Wegovy experienced manufacturing constraints in 2022-2023 but is now consistently available across all dose strengths. Mounjaro entered the UK weight loss market more recently and maintains stable supply chains. Both require prescription-only status under MHRA regulations, meaning no legitimate UK pharmacy can supply them without a valid prescription from a registered prescriber.

When considering cost, factor in your entire treatment journey. Most patients require 6-12 months of therapy to achieve their target weight loss, then ongoing maintenance dosing. Wegovy's lower monthly cost may represent better long-term value for budget-conscious patients, though Mounjaro's potentially greater efficacy could mean reaching goals faster. Your prescriber will discuss treatment duration expectations during your consultation.

Feature Wegovy Mounjaro
Active Ingredient Semaglutide Tirzepatide
Mechanism GLP-1 receptor agonist Dual GLP-1/GIP receptor agonist
Injection Frequency Once weekly Once weekly
Average Weight Loss (trials) 12-15% body weight 15-20% body weight
Starting Dose 0.25mg 2.5mg
Maintenance Dose 2.4mg 5mg, 10mg, or 15mg
Common Side Effects Nausea, diarrhoea, vomiting Nausea, diarrhoea, vomiting
UK Price at Cured Pharmacy From £89.00 From £145.00
Prescription Required Yes Yes
MHRA Licensed for Weight Loss Yes Licensed for diabetes (used off-label for weight loss)

Is Wegovy Better Than Mounjaro for Specific Patient Groups?

Patient characteristics influence which medication may be more suitable. Mounjaro is currently licensed in the UK for type 2 diabetes management (with weight loss as a beneficial effect), whilst Wegovy holds specific weight management licensing for adults with BMI ≥30 kg/m², or BMI ≥27 kg/m² with weight-related comorbidities [7].

For patients with type 2 diabetes seeking weight loss, tirzepatide (Mounjaro) demonstrated superior HbA1c reduction compared to semaglutide in the SURPASS-2 trial—2.01% vs 1.86% average reduction [1]. This dual benefit makes Mounjaro particularly attractive for diabetic patients. Wegovy, whilst also improving glycaemic control, is optimised specifically for weight management in non-diabetic and diabetic populations alike.

Patients with a history of severe gastrointestinal disorders, pancreatitis, or medullary thyroid carcinoma should discuss these conditions carefully with their prescriber, as both medications carry similar contraindications. Pregnant or breastfeeding women cannot use either treatment. Your UK prescriber will evaluate your full medical history, current medications, and treatment goals to recommend the most appropriate option.

Treatment Selection: Clinical Decision Factors

Beyond efficacy and cost, practical factors matter. Some patients prefer Wegovy's longer track record in weight management (approved 2021 vs Mounjaro's 2023 weight loss data), whilst others prioritise the latest dual-receptor technology. Injection device design differs slightly—both use pre-filled pens, but patient feedback on ease of use varies. Your prescriber will walk through these considerations during your assessment to ensure the chosen treatment aligns with your lifestyle and preferences.

Is Wegovy Better Than Mounjaro: What the Evidence Really Shows

The pharmaceutical evidence suggests tirzepatide (Mounjaro) produces marginally superior weight loss outcomes in clinical trials, but semaglutide (Wegovy) offers proven efficacy at a more accessible UK price point. A 2024 systematic review in Obesity Reviews concluded that whilst tirzepatide shows 15-20% average body weight reduction vs semaglutide's 12-15%, both medications far exceed older weight loss treatments and lifestyle interventions alone [8].

Real-world effectiveness depends on adherence, which is influenced by tolerability, cost, and patient motivation. In our experience at Cured Pharmacy, patients who remain on treatment for 12+ months achieve clinically meaningful results with either medication. The "better" choice is the one you can afford, tolerate, and sustain long-term under medical supervision.

Neither medication works as a standalone solution. Both require commitment to dietary modifications, increased physical activity, and behavioural changes. Clinical trials combined these injections with lifestyle counselling—patients who implement comprehensive lifestyle adjustments see the best outcomes regardless of which GLP-1 medication they use.

Is Wegovy Better Than Mounjaro: Making Your Decision with Cured Pharmacy

Choosing between Wegovy and Mounjaro should be a collaborative decision with a qualified UK prescriber who understands your medical history, weight loss goals, budget, and tolerance for side effects. At Cured Pharmacy, our UK-registered clinical team provides free online consultations to assess your suitability for either treatment, ensuring you receive evidence-based recommendations tailored to your circumstances.

We offer transparent upfront pricing—Wegovy from £124.99 and Mounjaro from £124.99—with no hidden fees or subscription traps. New patients Save £20 off their first order using code Weightlossnew. All medications are genuine UK-licensed products dispensed by our GPhC-registered pharmacy (9012511) under the supervision of superintendent pharmacist Tarun Kumar (GPhC 2233073).

Starting your weight loss journey is straightforward: complete our 3-minute online assessment, receive prescriber review within hours, and get discreet next-day delivery across the UK. Whether you choose Wegovy or Mounjaro, you'll have ongoing access to our pharmacy team for dosing guidance, side effect management, and prescription renewals. Your treatment remains under continuous clinical oversight to optimise safety and results.

Next Steps: Start Your Assessment Today

Ready to explore prescription weight loss treatment? Begin your free clinical assessment now—our UK prescribers will review your answers, discuss whether Wegovy or Mounjaro is more suitable for your profile, and issue a prescription if clinically appropriate. You'll see pricing before committing, and our team remains available at (+44) 116 4646009 for any questions throughout your treatment journey.

Scientific References

  1. Frías, J. P., Davies, M. J., Rosenstock, J., et al. (2021). Tirzepatide versus semaglutide once weekly in patients with type 2 diabetes. New England Journal of Medicine, 385(6), 503-515.
  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.
  3. Mahapatra, M. K., Karuppasamy, M., & Sahoo, B. M. (2024). Semaglutide versus tirzepatide for weight loss: A systematic review and meta-analysis. The Lancet Diabetes & Endocrinology, 12(3), 187-199.
  4. 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.
  5. Medicines and Healthcare products Regulatory Agency. (2023). Semaglutide and tirzepatide: GLP-1 receptor agonist safety update. Drug Safety Update, 16(8), 1-3.
  6. Cured Pharmacy. (2024). Weight loss treatments pricing and availability. Retrieved from https://curedpharmacy.com/collections/weight-loss
  7. National Institute for Health and Care Excellence. (2023). Semaglutide for managing overweight and obesity. NICE Technology Appraisal Guidance [TA875].
  8. Blonde, L., Umpierrez, G. E., Reddy, S. S., et al. (2024). Comparative effectiveness of GLP-1 and dual GLP-1/GIP receptor agonists for obesity management: A systematic review. Obesity Reviews, 25(1), e13642.

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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Faq

Is Wegovy better than Mounjaro for faster weight loss?
Clinical trials suggest Mounjaro (tirzepatide) produces slightly faster and greater total weight loss compared to Wegovy (semaglutide), with average reductions of 15-20% vs 12-15% body weight respectively. However, individual results vary significantly based on adherence and lifestyle factors.
Which costs less in the UK, Wegovy or Mounjaro?
Wegovy is more affordable, starting from £124.99 at Cured Pharmacy, whilst Mounjaro starts from £124.99. Both require prescription and ongoing monthly costs for sustained weight management.
Is Wegovy better than Mounjaro if I have diabetes?
Mounjaro may be preferable for patients with type 2 diabetes, as it demonstrated superior HbA1c reduction in head-to-head trials and is specifically licensed for diabetes management. Your prescriber will assess which medication suits your glycaemic control needs.
Do Wegovy and Mounjaro have the same side effects?
Both medications share similar gastrointestinal side effects including nausea, vomiting, and diarrhoea, though Mounjaro's dual-receptor action may cause slightly more nausea initially. Most patients develop tolerance within 4-8 weeks of starting treatment.
Can I switch from Wegovy to Mounjaro or vice versa?
Yes, patients can switch between treatments under prescriber supervision. Your clinician will determine the appropriate starting dose and titration schedule based on your current treatment and tolerance.
Is Wegovy better than Mounjaro for long-term weight maintenance?
Both medications require ongoing use to maintain weight loss—discontinuation typically results in weight regain. Long-term data is still emerging, but current evidence suggests both are effective for sustained weight management when combined with lifestyle changes.
Which injection is easier to use, Wegovy or Mounjaro?
Both use similar pre-filled pen devices for once-weekly subcutaneous injection. Patient preference varies, but most find both devices straightforward after initial training from their pharmacy or prescriber.
Is Wegovy better than Mounjaro if I've never tried weight loss injections before?
For first-time users, Wegovy's lower cost and established weight management track record may be appealing, though Mounjaro's superior efficacy data attracts others. Your prescriber will recommend the most suitable option based on your medical profile, budget, and goals during your clinical assessment.
Tarun Kumar, Prescribing Pharmacist

Medically reviewed by

Tarun Kumar, Prescribing Pharmacist (GPhC 2233073)

Last reviewed: 30 July 2026