Mounjaro 15mg Price Comparison UK

Compare Mounjaro 15mg costs from 60+ UK pharmacies, clinics and online providers to find the lowest prices for your weight loss treatment.

Prices range from £265360 per month for Mounjaro 15mg depending on the provider, with significant savings available through online pharmacies compared to high-street options like Boots.

Find verified GPhC-registered pharmacies, discount codes and current promotions to help you access this tirzepatide injection at the best available price in the UK.

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Price Summary for Mounjaro 15mg (13 February 2026)

Lowest Price

£265

Average Price

£303

Highest Price

£360

Price per month for Mounjaro 15mg (including any delivery fees) with the best available discount applied.

Prices last checked at

Showing 45 Mounjaro 15mg providers

What is the current UK price of Mounjaro 15mg?

The UK price of Mounjaro 15mg varies between online pharmacies. Providers set prices based on supply costs, prescribing checks and demand for this specific dose.

CompareMJ regularly scans the web for the latest prices, so you can see an up-to-date Mounjaro 15mg price comparison UK in one place and compare providers side by side.

Where is the cheapest Mounjaro 15mg in the UK?

The cheapest provider for Mounjaro 15mg can change often due to discount codes, introductory offers, repeat pricing and stock levels. The lowest headline price is not always the lowest total cost once consultation and delivery are included.

On CompareMJ, you can compare what each provider includes, such as delivery speed, support and consultation type, as well as the final price.

What does the price of Mounjaro 15mg usually include?

Most UK providers price Mounjaro 15mg as a 4-week supply, as the medication is taken weekly. What's included varies: some providers bundle the clinical assessment and delivery into the displayed price, while others add these at checkout.

CompareMJ highlights what's included so you can compare like-for-like before choosing a provider.

How much does Mounjaro 15mg cost per month?

The monthly cost of Mounjaro 15mg depends on the provider's pricing, whether the clinical assessment is included, delivery fees and any active promotions. When comparing options, focus on the total cost for a 4-week supply rather than a single headline figure.

Is Mounjaro 15mg a starter dose or a maintenance dose?

15mg is the highest available dose for this medication. It may be prescribed when clinically appropriate, and availability can sometimes affect pricing.

How long do people usually stay on Mounjaro 15mg?

Dose increases often happen in stages, commonly around monthly intervals, but how long someone stays on 15mg depends on response, side effects and clinical advice. Some people remain on a lower dose if it is effective.

If you are moving through doses, you may see 12.5mg referenced in treatment plans. Your prescriber will decide whether to stay at 15mg or step up.

Is Mounjaro 15mg more expensive than 12.5mg?

Usually, yes. Higher doses are often priced above lower doses, but the size of each step up depends on the provider. Some pharmacies apply small increases between strengths, while others have larger jumps based on their pricing model, availability and current promotions.

Why do Mounjaro 15mg prices vary between UK pharmacies?

Providers price differently because they have different costs and policies. One provider might include the clinical assessment and delivery, while another adds these separately. Stock status and delivery speed can also affect the final price.

Can I switch provider while using Mounjaro 15mg?

In many cases, yes. UK providers usually carry out a prescribing review before continuing treatment at 15mg, especially if you are switching from another service. Requirements vary between providers.

Is Mounjaro 15mg in stock in the UK?

Stock levels can vary by dose and provider. If a dose is in higher demand, it may sell out more quickly. CompareMJ helps you check which providers currently list 15mg as available before you start the process.

Do I need a prescription for Mounjaro 15mg for weight loss?

Yes. Mounjaro is a prescription-only treatment in the UK. Providers will assess whether you meet their clinical criteria for weight management and whether 15mg is appropriate based on your current treatment stage.

How often do Mounjaro 15mg prices change in the UK?

Prices can change due to supplier costs, promotions and demand. Because CompareMJ regularly scans the web, this page is designed to reflect the latest Mounjaro 15mg price comparison UK information.