Mounjaro Price Comparison UK 2026: Every Provider Ranked

Mounjaro (tirzepatide) is now available from multiple UK online pharmacies, and prices vary dramatically between providers. A single pen can differ by £20 or more depending on where you buy — and at the higher doses, those differences add up quickly over months of treatment.

Whether you are just starting your weight loss journey or looking to switch to a more affordable pharmacy, this guide compares every major UK Mounjaro provider by price, delivery time, and trust — so you can make a fully informed decision without spending hours researching individual websites.

We have checked each provider's published pricing as of March 2026 and ranked them across the key factors that matter: starting cost, maintenance dose price, consultation process, and how quickly you can expect your medication to arrive.

Mounjaro UK Providers: Price Comparison Table

The table below compares the nine major UK online pharmacies currently offering Mounjaro. All prices shown are per injection pen and are approximate as of March 2026 — always verify current prices directly with the provider before purchasing.

Prices are per pen and subject to change. All providers listed are registered with the General Pharmaceutical Council (GPhC). We recommend verifying current prices directly on each provider's website before purchasing.

Mounjaro Prices by Dose

Mounjaro treatment starts at the lowest dose and titrates upward over several months. Your cost will increase as your dose increases, so it is worth understanding the full price picture before you begin. The table below shows the typical price range across UK providers at each dose level as of March 2026.

Most patients begin at 2.5mg weekly and increase their dose every four weeks, following the standard titration schedule. If you reach and remain on the 15mg maintenance dose, you should budget approximately £249–£269 per month for your medication alone, before factoring in any consultation fees.

Where Is the Cheapest Place to Get Mounjaro in the UK?

As of March 2026, iQDoctor and Asda Online Doctor tend to be the most competitively priced options for Mounjaro in the UK. iQDoctor's starting price of £149.00 per 2.5mg pen is the lowest among the major providers we tracked, with Asda Online Doctor at £149.99 a close second.

However, cheapest is not always best. iQDoctor's delivery window of 3–7 working days is the longest of any provider we reviewed, which may not suit everyone — particularly those starting treatment urgently or managing a strict injection schedule. Asda Online Doctor offers a better balance of price and speed at 2–5 days.

At the 15mg end, iQDoctor again comes in marginally lower at £249.00 compared to Asda's £249.99, with most other providers charging £252–£269 for the same dose.

How to Save on Mounjaro

Mounjaro is a significant monthly expense for most people. Here are several legitimate strategies UK patients use to reduce the overall cost of treatment.

Look for Introductory or Discount Codes

Several online pharmacies run promotional discount codes for new patients, particularly around product launches or seasonal campaigns. It is worth checking voucher code sites and the provider's own social media channels before placing your first order. Some providers also offer discounts for subscribing to a regular delivery schedule.

Compare at Each Dose Step

The cheapest provider at 2.5mg may not be the cheapest at 10mg or 15mg. Because pricing is structured differently across pharmacies, it pays to re-compare the full table each time your dose increases. Switching providers at a higher dose could save you £15–£20 per pen — a meaningful sum over a full year of treatment.

Consider Multi-Pen Orders

Some providers offer a small discount when purchasing a four-week or eight-week supply upfront rather than ordering a single pen at a time. This works well if your dose is stable, though it does carry the risk of wastage if your prescription changes or if you experience side effects and need to pause treatment.

Ask About NHS Eligibility

Mounjaro has been recommended by NICE for NHS use in adults with obesity. Availability through NHS specialist weight management services is expanding, and if you are eligible, NHS treatment will be significantly cheaper than the private route. Ask your GP whether you qualify for a referral.

How Mounjaro Works

Mounjaro's active ingredient is tirzepatide, a medication that activates two hormone receptors simultaneously: GLP-1 (glucagon-like peptide-1) and GIP (glucose-dependent insulinotropic polypeptide). This dual-action mechanism is what sets Mounjaro apart from earlier GLP-1-only treatments such as semaglutide (Ozempic, Wegovy).

By acting on both receptors, tirzepatide reduces appetite, slows gastric emptying, and improves the body's insulin response. The result is a sustained reduction in caloric intake and, over time, significant weight loss. Clinical trials have shown average weight reductions of 15–22% of total body weight over 72 weeks, making Mounjaro among the most effective pharmacological weight loss treatments currently available.

As with all GLP-1-based medications, the visible physical changes — including facial slimming, reduction in abdominal fat, and improved body contour — can be dramatic over the course of treatment, which is where progress-tracking tools become particularly valuable.

Track Your Mounjaro Progress with SKŌR

Weight loss medications like Mounjaro produce visible physical changes that your bathroom scales simply cannot capture. SKŌR is the app designed specifically to track these transformations — using AI to measure the changes in your face and body that reflect your true progress.

SKŌR tracks four metrics that are particularly relevant for people on GLP-1 and GIP medications:

• Face Slimming — how much facial fat has reduced, changing your jawline, cheek definition, and overall facial structure
• Body Contour — visible changes in your body shape, including waist definition and overall silhouette
• Skin Quality — tracking any changes to skin texture, hydration, and clarity during weight loss
• Progress Visibility — a composite score reflecting how noticeable your overall transformation is compared to your baseline

Whether you are on Mounjaro, Wegovy, or another weight management treatment, SKŌR gives you an objective, data-driven view of how your body is changing — beyond what the scales can tell you. Download the app and get your first score in under 30 seconds.

Frequently Asked Questions

• How much does Mounjaro cost in the UK?
  As of March 2026, Mounjaro starts from around £149–£169 per pen for the 2.5mg starting dose, depending on the pharmacy. Higher maintenance doses such as 15mg typically cost £249–£269. Prices vary between providers and can change frequently, so always verify directly with your chosen pharmacy before ordering.
• Can I get Mounjaro on the NHS?
  Mounjaro (tirzepatide) has been approved by NICE for use on the NHS for weight management in adults with obesity. However, NHS availability is being rolled out in stages through specialist weight management services, and not everyone will be immediately eligible. Most people currently access it privately through online pharmacies. Speak to your GP to find out whether you qualify for an NHS referral.
• What is the cheapest Mounjaro pharmacy in the UK?
  As of March 2026, iQDoctor (from £149.00) and Asda Online Doctor (from £149.99) are among the most competitively priced for the 2.5mg starter dose. At the 15mg maintenance dose, both providers again lead on price at £249.00–£249.99. Prices change regularly, so always check current listings directly before purchasing.
• Do I need a prescription for Mounjaro in the UK?
  Yes. Mounjaro is a prescription-only medication in the UK. All legitimate online pharmacies will require you to complete an online medical consultation before a clinician issues a prescription. This consultation is typically included in the price. Be cautious of any website offering Mounjaro without requiring a consultation — this is illegal and potentially dangerous.
• How long does Mounjaro delivery take?
  Delivery times vary by provider. Pharmacy2U typically offers the fastest delivery at 1–3 working days. Most other providers deliver within 2–5 working days, with iQDoctor taking the longest at 3–7 working days. Factor delivery time into your planning — you do not want to run out of medication while waiting for your next order to arrive.
• What doses does Mounjaro come in?
  Mounjaro is available in six doses: 2.5mg, 5mg, 7.5mg, 10mg, 12.5mg, and 15mg. Treatment typically begins at 2.5mg weekly and increases by one step every four weeks, up to a maximum maintenance dose of 15mg. Not everyone needs to reach 15mg — your clinician will advise on the right dose for you based on your response and tolerance.
• Can I switch Mounjaro pharmacy?
  Yes, you can switch between online pharmacies at any time. You will typically need to complete a new online consultation with the new provider. Make sure you have a clear record of your current dose, how long you have been on it, and any side effects you have experienced — the new pharmacy's clinician will need this information to continue your prescription safely at the correct dose.
• Is Mounjaro the same as Wegovy?
  No. Mounjaro (tirzepatide) and Wegovy (semaglutide) are different medications, though both are used for weight management. Mounjaro is a dual GIP and GLP-1 receptor agonist, while Wegovy acts on GLP-1 receptors only. Head-to-head clinical data suggests Mounjaro may produce greater average weight loss than semaglutide, though individual results vary significantly.
• How long do I need to take Mounjaro?
  Mounjaro is intended as a long-term treatment. Clinical trials show that weight is typically regained after stopping the medication, which is why most clinicians recommend continuing treatment indefinitely for sustained benefit. Lifestyle changes — including dietary improvements and regular exercise — remain important alongside the medication to maximise results and support long-term maintenance.
• What are Mounjaro side effects?
  The most common side effects of Mounjaro include nausea, vomiting, diarrhoea, constipation, and reduced appetite. These are most pronounced when beginning treatment or when increasing the dose and often improve as your body adjusts. Less commonly, some patients experience fatigue, reflux, or hair thinning. Always speak to your prescribing clinician if you experience persistent or severe side effects — do not stop treatment abruptly without medical guidance.