The current Mounjaro 12.5mg price in the UK is £274.99 for new customers, £279.99 for repeat orders, and £304.99 at the regular price for a single pen. Mounjaro 12.5mg sits between the 10mg and 15mg strengths and is reached later in treatment after your prescriber has reviewed how you respond to lower doses. It is not a starting dose.
For UK adults considering prescription weight loss treatment through a GPhC registered online pharmacy, this page explains more than the headline price. It covers how the 12.5mg dose fits into Mounjaro dose increases, how it compares with other strengths, the side effects and prescribing checks you may need to consider, and how ordering works after an online clinical consultation. This can help if you are planning the cost of treatment and wondering whether 12.5mg may be suitable for you. Mounjaro is prescription only in the UK, and your prescriber decides which dose is appropriate based on your individual circumstances and response to treatment.
Key things to know
- Treatment starts with a 2.5mg dose of Mounjaro, and 12.5mg is reached through dose increases. It is not a starting dose.
- It sits between the 10mg and 15mg strengths and is not one of the doses separately reported in the main SURMOUNT 1 trial results.
- Pricing is shown in three tiers: a regular price, a current price with the discount applied, and a Future Orders price for repeat orders.
- Whether you reach 12.5mg is a decision made by your prescriber based on your individual response and how well you tolerate treatment. It is not something to choose in advance.
- Always check the exact current price at checkout, as prices and offers can change and information on different pages may not always be updated at the same time.
Current 12.5mg Mounjaro Prices
| Pricing tier | Price |
|---|---|
| Regular price | £304.99 |
| Current price (with discount) | £274.99 |
| Future Orders price | £279.99 |
The regular price is the reference price used to calculate the discount. The current price is the price shown for a new customer. The Future Orders price is the price shown for repeat orders as an existing customer. If you expect to stay on this dose for more than one order, the repeat price may be useful when planning your budget.
It is worth checking the price at checkout because different pages may show different figures. For example, some pages may show a £299.99 regular price and £259.99 discounted price, while the live buy box may show £304.99 and £274.99. The figures above reflect the live buy box information available at the time of writing. Always confirm the exact price at checkout before ordering.
What the 12.5mg Dose Is For in Mounjaro for Weight Loss
Mounjaro treatment starts at 2.5mg, which is the usual starting dose. Any increase beyond this, including an increase to 12.5mg, should only happen when your prescriber considers a higher dose appropriate based on your response and how well you tolerate your current dose. Mounjaro contains tirzepatide, which acts on GIP and GLP 1 receptors involved in appetite and blood sugar regulation.
12.5mg is a dose between 10mg and 15mg, with 15mg being the highest strength. The main published results from the SURMOUNT 1 trial report outcomes separately for the 5mg, 10mg and 15mg maintenance doses rather than 12.5mg specifically. This is because 12.5mg is used as an intermediate dose during dose increases for some patients.
This does not mean that 12.5mg is unsuitable or ineffective. It means that the main published trial results are reported for different maintenance doses. Individual responses to treatment can vary, so your prescriber will review your progress before recommending any dose increase.
In the original trial, participants increased their dose in 2.5mg steps at intervals of around four weeks, where appropriate. This meant that people who progressed to 15mg would have passed through 12.5mg. Your own treatment schedule may be different because your prescriber will consider your individual response and tolerance.
A Realistic Timeline to Reach 12.5mg
The dose increase pattern used in clinical studies involved increases at intervals of around four weeks. Starting from 2.5mg, reaching 12.5mg would therefore take several months if each dose increase is suitable and follows this type of schedule.
There is no fixed timeline that applies to everyone. Some people may stay at a lower dose for longer if they experience side effects or if their prescriber decides that increasing the dose is not appropriate at that time. There is no need to compare your progress with someone else's treatment journey. Your prescriber will assess your response at each stage.
If you miss a dose, follow the instructions provided with your medicine or speak to your prescriber or pharmacist. For the usual once weekly schedule, a missed dose may be taken within 4 days (96 hours). If more than 4 days have passed, the missed dose should generally be skipped and the next dose taken on the usual day. Do not take two doses within 3 days of each other.
Side Effects to Expect at Higher Doses
Mounjaro can cause side effects, particularly digestive side effects. These can include nausea, diarrhoea, indigestion and other stomach or digestive problems. Some people may also experience reduced appetite or hair loss. Side effects can occur or become more noticeable when the dose is increased.
Many side effects are mild or moderate and may improve as your body adjusts to treatment, but this can vary from person to person.
More serious side effects can occur less commonly. For example, pancreatitis and gallbladder problems have been reported with tirzepatide. Severe or persistent stomach pain, particularly if it spreads to the back, or yellowing of the skin or eyes should be assessed urgently by a healthcare professional.
If side effects are difficult to manage, speak to your prescriber rather than trying to push through them on your own. Your prescriber may decide to keep you on your current dose for longer or make another change based on your symptoms and treatment response. Side effect management is an important part of safe dose adjustment during weight loss treatment. See our weight loss medication guide for more information.
How 12.5mg Compares to Other Doses
| Dose | Current price | Future Orders price |
|---|---|---|
| 2.5mg (starting dose) | £144.99 | £149.99 |
| 5mg | £174.99 | £179.99 |
| 7.5mg | £224.99 | £229.99 |
| 10mg | £244.99 | £249.99 |
| 12.5mg | £274.99 | £279.99 |
| 15mg (maximum) | £293.99 | £298.99 |
Across the wider UK market, prices for a four week pen can vary between providers and may be higher at stronger doses. Mounjaro is a weekly weight loss injection used as part of a wider weight management plan. Individual weight loss results can vary, and treatment should be used as prescribed.
The price of Mounjaro can increase with strength, although the exact price difference depends on the provider. Changes in wholesale costs can also affect the price paid by customers.
Publicly quoted prices from other providers may also vary. For example, prices elsewhere in the market have been quoted at around £148 for 2.5mg, £188 for 5mg, £248 for 7.5mg, £278 for 10mg and £298 for 15mg, depending on the provider and current offer.
If your treatment progresses to 12.5mg, you will normally have already used lower strengths such as 2.5mg, 5mg, 7.5mg and 10mg. This means your treatment costs may change over time rather than starting at the 12.5mg price.
Estimating Annual Cost at 12.5mg
If you stayed on 12.5mg for a full year at the Future Orders price of £279.99 per pen, and each pen covers 4 weeks, 13 pens would cost approximately £3,639.87 across the year.
This is only an example of the cost of 12.5mg for a full year. Your actual cost may be different because you may spend time on lower doses before reaching 12.5mg, change dose during treatment, use a discount, or have a different treatment plan.
Why You Cannot Simply Choose to Start at 12.5mg
Mounjaro is not normally started at 12.5mg. Treatment starts at a lower dose and may be increased gradually if your prescriber considers this appropriate.
The gradual dose increase allows your prescriber to monitor how you respond to treatment and how well you tolerate it. Digestive side effects can occur with Mounjaro and may be more noticeable when the dose is increased.
If you are interested in reaching 12.5mg or 15mg, discuss this with your prescriber. Whether you move to a higher strength depends on your individual response, tolerance and clinical assessment rather than your preference or budget.
What's Included in the Price
The Mounjaro price includes your online clinical consultation with a UK registered prescriber, your prescription and dispensing through our GPhC registered pharmacy. Standard approval takes around 3 working days, with a paid express option available for a faster review.
The express service is optional and is separate from the standard price and any discount.
Bundle Options If You Are Already at 12.5mg
If your prescriber has confirmed that 12.5mg is suitable for you as an ongoing dose, you may be able to consider a multi pen bundle. Depending on the current offer, a bundle may cost less than ordering individual pens.
Bundle sizes, prices and availability can change, so check the live pricing information at checkout rather than relying on a bundle price shown on another page.
Bundles may be more suitable once your dose has stabilised. If your prescriber is still adjusting your dose, ordering individual pens may give you more flexibility.
Getting Started with EverydayMeds
Treatment begins with a free online clinical consultation. Our UK registered prescribing team reviews information such as your BMI and medical history to assess whether treatment may be suitable for you. Mounjaro treatment usually starts at 2.5mg in our weight loss service.
Mounjaro requires a clinical assessment before it can be prescribed. For weight management, it is generally licensed for adults with a BMI of 30 or above, or a BMI of 27 or above with a weight related health condition such as high blood pressure. Eligibility also depends on your individual circumstances.
Mounjaro is intended to be used alongside a reduced calorie diet and increased physical activity as part of a weight management plan. Your prescriber can give you advice on diet, exercise and treatment based on your individual needs.
Mounjaro is not suitable for people under 18 and may not be suitable during pregnancy or breastfeeding. Always discuss your circumstances with your prescriber before starting treatment.
Whether your treatment eventually reaches 12.5mg will depend on your individual response and your prescriber's assessment over time. Treatment is dispensed by our GPhC registered pharmacy in line with the applicable requirements for prescription medicines.
Medical Disclaimer
This page provides general information about Mounjaro 12.5mg pricing and dosing. It is not a substitute for personalised medical advice.
Dose changes, including any increase to 12.5mg, are a clinical decision made by your prescriber based on your individual response and how well you tolerate treatment. Do not change your dose without speaking to your prescriber.
Prices and offers can change, so always check the exact current price at checkout. If the price shown on this page differs from another EverydayMeds page, use the current checkout price to confirm the amount you will pay.
