0.25mg Wegovy vs Mounjaro Starter - Compare UK Prices

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0.25mg Wegovy vs Mounjaro - Compare Cheapest UK Prices

Compare 0.25mg 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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0.25mg Wegovy vs Mounjaro Starter: Which Weight Loss Injection Should You Choose?

Choosing between 0.25mg Wegovy vs Mounjaro starter doses is one of the most common questions we receive from patients beginning their weight loss journey. Both medications are GLP-1 receptor agonists licensed in the UK for weight management, but they work through different mechanisms and deliver distinct results. As a UK-registered pharmacy with over 10,000 weight loss consultations completed, we've helped patients navigate this exact decision — and this guide will give you the clinical evidence you need to choose confidently.

How the 0.25mg Wegovy vs Mounjaro Starter Doses Work Differently

The 0.25mg starter dose serves a critical purpose for both medications: it allows your body to adapt to GLP-1 receptor activation while minimising gastrointestinal side effects. However, the mechanisms differ significantly. Wegovy (semaglutide) is a pure GLP-1 receptor agonist that slows gastric emptying and reduces appetite through hypothalamic pathways [1]. Mounjaro (tirzepatide) is the UK's first dual GIP/GLP-1 receptor agonist, meaning it activates both glucose-dependent insulinotropic polypeptide and GLP-1 receptors simultaneously [2].

This dual-action mechanism gives Mounjaro a theoretical advantage in clinical trials. The SURPASS-2 head-to-head trial compared tirzepatide directly against semaglutide 1mg and found that patients on the highest tirzepatide dose lost an average of 5.5kg more over 40 weeks [2]. However, at the starter dose level — 0.25mg for both medications — the difference in weight loss is minimal during the first month. The starter dose is primarily about tolerability, not maximum efficacy.

Both medications require gradual dose escalation every four weeks. Wegovy follows a fixed escalation schedule (0.25mg → 0.5mg → 1mg → 1.7mg → 2.4mg maintenance), while Mounjaro escalates through 2.5mg, 5mg, 7.5mg, 10mg, 12.5mg, and 15mg doses [1][2]. The longer escalation pathway for Mounjaro reflects its higher maximum dose and dual-receptor activity. All dose changes must be supervised by a UK prescriber through regular clinical reviews.

Weight Loss Results: 0.25mg Wegovy vs Mounjaro Starter Expectations

At the 0.25mg starter dose, neither Wegovy nor Mounjaro will deliver dramatic weight loss in the first month — and that's by design. The starter dose exists to build physiological tolerance, not to achieve maximum therapeutic effect. In our clinical experience at Cured Pharmacy, patients typically lose 1-2kg during their first month on either 0.25mg starter dose, primarily through reduced appetite and smaller portion sizes.

The real difference emerges at maintenance doses. The STEP 1 trial showed that Wegovy 2.4mg delivered an average weight loss of 14.9% of body weight over 68 weeks [1]. The SURMOUNT-1 trial demonstrated that Mounjaro 15mg achieved an average weight loss of 20.9% over 72 weeks — the highest ever recorded in a GLP-1 class medication trial [3]. However, these results reflect full dose escalation and long-term adherence, not the starter phase.

Realistic Timeline for 0.25mg Wegovy vs Mounjaro Starter Patients

Week 1-4 (0.25mg dose): Expect 1-2kg loss, reduced hunger, possible mild nausea. Week 5-8 (escalation to next dose): Weight loss accelerates to 0.5-1kg per week as dose increases. Month 3-6: Progressive weight loss continues with each dose escalation, averaging 1-2% body weight per month. Month 6-12: Maintenance dose reached, weight loss plateaus but remains stable with continued treatment [1][3]. All patients require ongoing prescriber supervision and lifestyle modification for optimal results.

Side Effects: 0.25mg Wegovy vs Mounjaro Starter Tolerability

The 0.25mg starter dose for both Wegovy and Mounjaro significantly reduces the incidence of gastrointestinal side effects compared to starting at higher doses. In the STEP trials, approximately 44% of Wegovy patients reported nausea at some point during treatment, but most cases were mild-to-moderate and occurred during dose escalation [1]. The SURPASS trials found similar rates for Mounjaro, with 28-33% experiencing nausea depending on final dose [2].

At the 0.25mg starter dose specifically, side effects are typically transient and manageable. The most common include mild nausea (affecting roughly 15-20% of patients in week one), occasional loose stools, reduced appetite, and mild abdominal discomfort. These effects usually resolve within 7-10 days as your body adapts to GLP-1 receptor activation. Eating smaller, more frequent meals and avoiding high-fat foods during the first fortnight can significantly improve tolerability.

Serious side effects are rare but require immediate medical attention: persistent vomiting leading to dehydration, severe abdominal pain (potential pancreatitis), visual changes, or signs of thyroid nodules. Both medications carry a boxed warning regarding thyroid C-cell tumours observed in rodent studies, though no causal link has been established in humans [1][2]. All patients must complete a thorough medical history assessment with a UK prescriber before starting either medication.

Feature Wegovy 0.25mg Mounjaro 0.25mg
Active Ingredient Semaglutide Tirzepatide
Mechanism GLP-1 agonist Dual GIP/GLP-1 agonist
Injection Frequency Once weekly Once weekly
Starter Dose Duration 4 weeks 4 weeks
Maximum Dose 2.4mg 15mg
Average Weight Loss (maintenance) 14.9% body weight 20.9% body weight
Common Side Effects Nausea, diarrhoea, constipation Nausea, diarrhoea, reduced appetite
Cured Pharmacy Price From £89.00 From £145.00
First Order Discount £10 off with code Weightlossnew £10 off with code Weightlossnew
NHS Availability Yes (limited, strict criteria) Yes (very limited availability)

UK Pricing: 0.25mg Wegovy vs Mounjaro Starter Cost Comparison

Price is often the deciding factor when comparing 0.25mg Wegovy vs Mounjaro starter options in the UK private market. At Cured Pharmacy, Wegovy 0.25mg starter pens are priced from £124.99, making it the more budget-friendly option for patients beginning treatment. Mounjaro 0.25mg starter pens are priced from £124.99, reflecting the medication's newer market entry and dual-receptor formulation.

Both prices include a free clinical consultation with a UK-registered prescriber, discreet next-day delivery, and ongoing prescriber support throughout your treatment. New patients can Save £20 on their first order using code Weightlossnew, bringing Wegovy down to £124.99 and Mounjaro to £124.99 for the starter dose. These are the cheapest UK prices available for genuine, MHRA-licensed medications dispensed by a GPhC-registered pharmacy.

It's important to budget for the full treatment course, not just the starter dose. Both medications require 4-6 months of dose escalation to reach maintenance levels, and clinical trials show optimal results require 12+ months of continuous treatment [1][3]. The cumulative cost difference between Wegovy and Mounjaro over a year can exceed £124.99 making Wegovy the more economical choice for long-term weight management unless clinical factors favour Mounjaro's dual-receptor mechanism.

NHS vs Private: 0.25mg Wegovy vs Mounjaro Starter Availability

Wegovy is available on NHS prescription in England, Scotland, and Wales for patients with a BMI ≥35 (or ≥32.5 for certain ethnic groups) plus at least one weight-related comorbidity, subject to strict NICE eligibility criteria and local ICB formulary decisions. Mounjaro recently received NICE approval for NHS use under similar criteria, but rollout is limited by supply constraints and local commissioning decisions. Most patients access both medications through private prescriptions due to NHS waiting lists exceeding 6-12 months in many regions. Private treatment allows immediate access subject to clinical suitability and prescriber approval.

Who Should Choose 0.25mg Wegovy vs Mounjaro Starter Dose?

The decision between 0.25mg Wegovy vs Mounjaro starter doses should be guided by your clinical profile, weight loss goals, budget, and tolerability concerns. Wegovy may be more suitable if you're starting your first GLP-1 medication, prefer a lower-cost option, have a BMI in the 30-35 range, or have concerns about gastrointestinal side effects (as the slower mechanism may be gentler for some patients). Mounjaro may be more appropriate if you have a BMI ≥40, have not achieved adequate results with semaglutide previously, have type 2 diabetes alongside obesity (tirzepatide shows superior HbA1c reduction), or are willing to invest in the potentially higher efficacy seen in clinical trials [2][3].

Both medications are contraindicated in patients with a personal or family history of medullary thyroid carcinoma, multiple endocrine neoplasia syndrome type 2, or severe gastrointestinal disease. Pregnant or breastfeeding women cannot use either medication. Patients with a history of pancreatitis, severe renal impairment, or diabetic retinopathy should discuss risks carefully with their prescriber before starting treatment.

At Cured Pharmacy, our UK-registered clinical team conducts a comprehensive medical assessment before prescribing either medication. This includes reviewing your weight history, comorbidities, current medications, and treatment goals. Our superintendent pharmacist, Tarun Kumar (GPhC 2233073), personally oversees all weight loss consultations to ensure prescribing safety and clinical appropriateness. You'll receive a personalised treatment plan, dosing schedule, and ongoing support throughout your weight loss journey.

How to Start 0.25mg Wegovy vs Mounjaro Starter Treatment Safely

Starting either 0.25mg Wegovy or Mounjaro requires a valid prescription from a UK-registered prescriber following clinical assessment. At Cured Pharmacy, the process takes under 3 minutes: complete our online medical questionnaire, receive same-day prescriber review, and get your medication dispatched with next-day delivery in 100% discreet packaging. All consultations are free, and pricing is transparent before you submit your assessment — no hidden fees or surprise charges.

Once you receive your starter dose, inject subcutaneously (under the skin) into your abdomen, thigh, or upper arm once weekly on the same day each week. Rotate injection sites to prevent lipodystrophy. Store pens in the fridge (2-8°C) before first use, and at room temperature (below 30°C) for up to 28 days after opening. Never freeze the medication, and always check the solution is clear and colourless before injecting [1][2].

Monitor your response during the first month: track weight weekly, note any side effects, stay well-hydrated, and maintain a balanced diet with adequate protein. Contact your prescriber immediately if you experience severe nausea, persistent vomiting, severe abdominal pain, or any signs of allergic reaction. After four weeks on the 0.25mg starter dose, you'll need a follow-up consultation to progress to the next dose level — this is a clinical requirement, not optional. Cured Pharmacy provides ongoing prescriber access throughout your treatment at no additional cost.

Maximising Results with 0.25mg Wegovy vs Mounjaro Starter Doses

While the medication reduces appetite and slows gastric emptying, combining treatment with lifestyle modification significantly improves outcomes. Aim for a 500-calorie daily deficit through portion control, prioritise protein intake (1.2-1.6g per kg body weight) to preserve lean muscle mass, incorporate resistance training 2-3 times weekly, and maintain a food diary during the first month to identify patterns. Clinical trials show that patients who combine GLP-1 therapy with structured lifestyle intervention lose 3-5% more body weight than those relying on medication alone [3]. Your prescriber can refer you to NHS-approved weight management programmes or registered dietitians for additional support.

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. Frías, J. P., Davies, M. J., Rosenstock, J., Pérez Manghi, F. C., Fernández Landó, L., Bergman, B. K., ... & SURPASS-2 Investigators. (2021). Tirzepatide versus semaglutide once weekly in patients with type 2 diabetes. New England Journal of Medicine, 385(6), 503-515. [accessed 15 August 2026]
  3. Jastreboff, A. M., Aronne, L. J., Ahmad, N. N., Wharton, S., Connery, L., Alves, B., ... & SURMOUNT-1 Investigators. (2022). Tirzepatide once weekly for the treatment of obesity. New England Journal of Medicine, 387(3), 205-216. [accessed 15 August 2026]
  4. NHS. (2026). Tirzepatide: a medicine to manage type 2 diabetes and treat obesity. https://www.nhs.uk/medicines/tirzepatide/ Accessed 15 August 2026.
  5. NHS. (2026). Overweight and obesity in adults. https://www.nhs.uk/conditions/overweight-and-obesity/ Accessed 15 August 2026.
  6. 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

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.
Can I switch from 0.25mg Wegovy to Mounjaro starter dose mid-treatment?
Yes, but only under prescriber supervision. If switching from Wegovy to Mounjaro, your prescriber will determine the appropriate starting dose based on your current semaglutide dose and tolerability — you may not need to restart at 0.25mg Mounjaro if already on higher Wegovy doses.
How long do I stay on the 0.25mg Wegovy vs Mounjaro starter dose?
Exactly 4 weeks for both medications. The starter dose is a fixed initiation phase designed to build tolerance before escalating to the next dose level (0.5mg for Wegovy, 2.5mg for Mounjaro) in week 5.
Which is better for weight loss: 0.25mg Wegovy or Mounjaro starter?
At the 0.25mg starter dose, weight loss is similar (1-2kg in month one). Mounjaro shows superior weight loss at maintenance doses (20.9% vs 14.9% average body weight), but the starter dose is about tolerability, not maximum efficacy.
What if I experience severe nausea on the 0.25mg Wegovy vs Mounjaro starter dose?
Contact your prescriber immediately. Severe nausea may require anti-emetic medication, temporary dose reduction, or switching to the alternative medication. Never stop treatment abruptly without prescriber guidance.
Can I buy 0.25mg Wegovy vs Mounjaro starter doses without prescription in the UK?
No. Both are prescription-only medicines (POM) in the UK and require clinical assessment by a registered prescriber. Any website offering these without prescription is operating illegally and dispensing potentially counterfeit medication.
Is the 0.25mg Wegovy vs Mounjaro starter dose covered by insurance?
Some private medical insurance policies cover GLP-1 medications for obesity, but most require prior authorisation and proof of failed lifestyle intervention. Check your policy wording and speak to your insurer before starting treatment.
How do I inject the 0.25mg Wegovy vs Mounjaro starter dose correctly?
Both use pre-filled single-dose pens. Clean injection site with alcohol wipe, pinch skin, insert needle at 90-degree angle, press button until you hear a click, hold for 5-10 seconds, then withdraw. Full instructions are provided with your medication.
What happens if I miss a dose of my 0.25mg Wegovy vs Mounjaro starter injection?
If less than 5 days late, inject as soon as you remember. If more than 5 days late, skip the missed dose and resume your normal schedule. Never double-dose. Contact your prescriber if you miss multiple doses as this may affect your escalation timeline.
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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