Mounjaro Black Friday Deals UK (October 2026)

01 · Price

What a Mounjaro deal actually costs right now

The real saving is the live discount structure, not a calendar date. A new customer gets £40 off their first order at any dose with code FIRST40, and an automatic £25 reorder discount applies to every future order (code DOSE25). Your first 2.5mg pen costs £129.99 with the code, against a standard price of £169.99.

The discount is not limited to the starter pen. Switching to us from another provider at a higher dose? Your first 15mg order is £289.99, a first-order price, against a standard £329.99. After that, each order is £25 off the standard price of the dose you are on. The Mounjaro pen page shows every dose with current prices, and all six doses are in stock.

Our standard prices per four-week pen, before any discount, are £169.99 (2.5mg), £218.99 (5mg), £279.99 (7.5mg), £290.99 (10mg), £319.99 (12.5mg) and £329.99 (15mg). Per week that works out at £42.50, £54.75, £70.00, £72.75, £80.00 and £82.50 respectively.

02 · Planning

What the first year costs, whatever the season

A one-off sale price matters less than the cost across a full course, because Mounjaro is taken weekly and the dose is stepped up over time. The table uses standard prices before discounts. A new customer's first order is £40 less, and every later order is £25 less.

A first year costs £2,711.88 if you settle at 5mg, up to £3,599.88 at 15mg. Your prescriber decides the dose that suits you, so judge any offer by the monthly price at the dose you are likely to stay on, not the starter pen alone.

03 · Ordering

How ordering works

Ordering is three steps. First, complete a free online consultation, a short health questionnaire with no charge and no obligation. Second, a GPhC-registered prescriber reviews it; payment is taken when you place the order, and if the prescriber decides the treatment is not suitable, the order is refunded automatically in full. Third, our registered pharmacy dispenses it, with same-day dispatch when ordered by 3pm.

Delivery is free, next-day, tracked and temperature-controlled (Saturday delivery is £14.99). The price shown is the price paid, with no hidden fees. You can pay by Visa or Mastercard, Klarna or pay-monthly options, and there are no subscriptions. Start on the weight loss clinic page or go straight to the Mounjaro pen page.

Official LillyDirect supply means our pens come directly from Eli Lilly's UK distribution, and every order includes needles, a sharps bin and injection guidance. We also offer ongoing monthly reviews with the prescribing team.

04 · Is there a Black Friday sale?

Is there a real Black Friday sale on Mounjaro?

Mounjaro is a branded prescription medicine, so pharmacies cannot discount it as freely as clothes or electronics. Because it is prescription-only, any offer has to sit alongside a clinical consultation. A genuine saving therefore comes as a percentage or amount off a pharmacy's standard price, not as a mystery bundle or a stock clearance.

New customers save £40 on their first order with code FIRST40, and an automatic £25 reorder discount applies to every future order (code DOSE25). If your prescriber has approved you, the saving available in November is the one you can use today.

Our Black Friday stock page covers availability, and our guide to cheap Mounjaro deals compares the routes to a lower monthly cost.

Why prices differ between pharmacies

Eli Lilly announced a UK list-price increase for Mounjaro on 14 August 2025, effective 1 September 2025.¹⁰ Pharmacy sell prices still vary because of confidential discounts between suppliers and pharmacies, which is why two providers can charge quite different amounts for the same pen. That variation is the reason comparison matters more than timing.

How to read any "deal" headline

Ask four questions of every offer. Is it a first-order price or a repeat price? Which dose does it apply to? Does it include the consultation and delivery? And is the seller a pharmacy you can find on the GPhC register? A headline that fails any of these tells you less than it appears to. Our own first-order figures are labelled as first-order prices, and the reorder discount is stated as a reduction on the standard price, so you can work out the real monthly cost for yourself.

Avoid planning around urgency. Starting treatment is a clinical decision made with a prescriber, who may decide Mounjaro is not suitable for you at all. A discount is only useful once that decision has been made, so treat it as a second consideration, not the first.

05 · Comparing UK prices honestly

Comparing UK Mounjaro prices without being misled

Comparing prices works only when you compare the same dose at the same stage of treatment. Across the UK pharmacies we track, a Mounjaro pen costs between £143.96 and £339.00 per month depending on dose and provider, checked 10 October 2026. That range spans all six doses, so it is not a starting-dose price.

For the 2.5mg starting pen alone, the same index shows prices from £143.96 to £179.99 per month across the pharmacies we track. For the same dose, the gap between providers runs from £27 to £41 per month. Boots' Mounjaro prices run from £179.00 to £339.00 across its dose range. These are our index figures, taken on a given date, not a promise that any pharmacy will hold the same price tomorrow.

Comparing the cost of Mounjaro

A fair comparison looks at the total cost at the dose your prescriber chooses, from a regulated pharmacy. That means looking at the first-order discount, the repeat-order discount, delivery charges and whether the price includes the consultation. Our consultation is free, delivery is free and next-day, and the price shown is the price paid.

Outside the UK

Another common question is where to buy the cheapest Mounjaro in Ireland. We are a UK online pharmacy and our service and prices are for UK customers, so we cannot advise on the Irish market. Wherever you are, the same rule applies: use a verified pharmacy, never a social media seller.

What cheap should not mean

A very low price is a reason to look harder, not a reason to buy. A price far below the rest of the range can indicate counterfeit stock, relabelled product or a seller that skips the clinical consultation.

06 · Avoiding fake offers

Fake Black Friday offers and counterfeit pens

The biggest risk around Mounjaro sales is not overpaying, it is receiving a fake pen. The MHRA has seized thousands of fake weight-loss pens in the UK and has issued alerts after falsified Mounjaro pens were identified. Fake pens have caused hospitalisations, and some contained insulin rather than tirzepatide.⁷

Seasonal sales are a favourite hook for scammers, because shoppers expect big reductions and may overlook the usual checks. Only buy from a pharmacy you can verify on the GPhC register, never from social media, beauty salons or unverified websites. Genuine treatment always involves a prescription and a clinical consultation, so any seller offering to supply without a consultation or prescription is not operating legally.⁷

How to verify a pharmacy

Search for the pharmacy on the GPhC register. Our registration number is 9012878. The listing should match the website name, and the register is the same one used by high street pharmacies.¹²

Checking the pen when it arrives

Mounjaro is made by Eli Lilly, and genuine UK stock reaches licensed pharmacies through Lilly's official distribution. Every pen carries a batch number and expiry date that can be checked. A genuine pen arrives cold-chain packaged, and the solution inside is clear and colourless.

Do not use a pen that has been frozen, looks cloudy or discoloured, has particles in it, is past its expiry, has been above 30°C, or has been in use for more than 30 days. If supply or packaging ever seems wrong, check the pharmacy on the GPhC register and contact the pharmacy before injecting.

Red flags in a deal

• No health questionnaire, or a questionnaire with no clinician reviewing it.
• Payment requests by bank transfer to an individual, or via messaging apps.
• A price dramatically below every regulated pharmacy.
• Pens described without a batch number, expiry date or cold-chain delivery.
• Vague promises of dramatic weight-loss claims or specific results.

Report suspect products or side effects through the MHRA Yellow Card scheme.⁷ Our own supply is official LillyDirect supply, with genuine KwikPens across all six doses.

07 · Who can have Mounjaro

Who can be prescribed Mounjaro

A discount only helps if a prescriber decides Mounjaro is right for you. Mounjaro is licensed for weight management in adults with a BMI of 30 or above, or a BMI between 27 and 30 with at least one weight-related condition. Qualifying conditions include high blood pressure, high cholesterol, obstructive sleep apnoea, cardiovascular disease, prediabetes or type 2 diabetes.¹

It must be used alongside a reduced-calorie diet and increased physical activity. A prescriber assesses your BMI, medical history and current medicines before deciding whether it is suitable. That assessment is part of our free consultation, and it is reviewed by a GPhC-registered prescriber rather than a scoring script.

What the main trial found

In the SURMOUNT-1 trial of 2,539 adults, people taking tirzepatide alongside diet and exercise lost on average 15% of their body weight on 5mg, 19.5% on 10mg and 20.9% on 15mg over 72 weeks, compared with 3.1% with lifestyle changes alone.² These are trial averages. Individual results vary, and treatment works alongside a reduced-calorie diet and increased physical activity, not instead of them.

At 72 weeks, 85% of participants on 5mg, 89% on 10mg and 91% on 15mg had lost at least 5% of their body weight. Half of participants on 10mg and 57% on 15mg lost at least 20% of their body weight.² As a worked example, for someone starting at 100 kg, 20.9% is about 21 kg. Trial averages do not predict your own result.

Why this matters for deal hunting

The dose that suits you is set by your prescriber, not by which pen is on offer. Buying a higher dose because it is discounted is not a regulated approach. The medicine's licensed dosing is described in the product information, and your prescriber builds your plan from it.¹³

Payment is taken when you place the order; if the prescriber decides the treatment is not suitable, the order is refunded automatically in full. That is a clearer protection than any seasonal promotion can give you.

Standard disclaimer: Mounjaro (tirzepatide) is a prescription-only medicine, supplied only after an online consultation reviewed by a GPhC-registered prescriber. This page is information, not a substitute for medical advice.

08 · NHS versus private

NHS or private: where deals fit in

Mounjaro is available on the NHS, but access is being phased in over several years. NICE recommends it for adults with a BMI of at least 35 plus at least one weight-related condition. The NHS primary-care rollout began in June 2025 with the highest-need groups first, initially BMI 40+ with four or more qualifying conditions.⁴⁶

Full rollout is expected to take years, which is why many people who meet the licensed criteria choose regulated private treatment rather than waiting.⁶ If you may qualify through the NHS, your GP is the place to ask first. The NHS prescription charge in England is £9.90 per item, though not every NHS weight management route involves it.

When private treatment makes sense

Private treatment suits people who do not meet the NHS thresholds yet but do meet the licensed criteria, or who prefer not to wait. In that case the price you pay is the main variable, which is why discounts and monthly cost matter. Compare it with the NHS honestly: NHS treatment, where you qualify, is the lower-cost route, and private treatment is the faster one for many people.

What private care should still include

Being private does not mean being unsupervised. A regulated pharmacy should offer a clinical consultation, prescriber review and follow-up. Ours includes ongoing monthly reviews, dose-titration and follow-up assessments by the prescribing team, and side-effect support. Repeat orders re-check suitability, and there is no auto-shipping, so you decide each time whether to continue.

Support is available Monday to Friday, 9am to 5pm, by email at support@everydaymeds.co.uk, through account portal chat or on 0333 207 0413. We also offer GLPTrackr, a free companion app for tracking a GLP-1 journey on iOS and Android.

Switching between routes

If you begin privately and later qualify for NHS care, speak to your GP and your prescriber about moving across. Do not change dose or timing on your own. Both sets of clinicians need the full picture, including your current dose and how you have tolerated treatment.

On other medicines, Wegovy's NHS access runs through specialist weight-management services; ask your GP.

09 · Do not stretch pens to save

Saving money safely

Making a pen last longer is not a way to save money.

Regulated ways to manage cost

Talk to your clinical team rather than self-adjusting.

You can also use the structure of the discounts. New customers save £40 on their first order with code FIRST40, and every later order is £25 off the standard price. Planning your first year using the cost table is more reliable than relying on any single promotion.

Stopping and the 4–5 week tail

Tirzepatide has a half-life of about five days, so after a final dose it takes roughly 4–5 weeks to clear the system. There is no way to speed this up, and nothing needs doing while it clears.¹ That is useful to know if you are pausing treatment for cost reasons: discuss it with your prescriber first, because stopping and restarting changes how you feel and how the dose should be handled.

Payment flexibility

If the issue is cash flow rather than the total price, Klarna and pay-monthly options are available, and there are no subscriptions, so you are not locked in. That spreads the cost without changing the medicine or its schedule, which is a safer way to ease a budget than changing how you inject.

10 · How Mounjaro works

What you are paying for: how Mounjaro works

Mounjaro is the brand name for tirzepatide, a once-weekly injectable prescription medicine made by Eli Lilly. In the UK it is licensed for weight management in adults and for type 2 diabetes. It comes as a pre-filled multi-dose pen (KwikPen) in six strengths: 2.5mg, 5mg, 7.5mg, 10mg, 12.5mg and 15mg.¹

Tirzepatide activates two natural gut-hormone receptors at once: GIP and GLP-1. Together these help regulate appetite, slow how quickly the stomach empties, and improve the way the body responds to insulin. In practice, most people feel fuller sooner and less hungry between meals, which supports a reduced-calorie diet.¹

This dual action is what distinguishes Mounjaro from single-action GLP-1 medicines such as semaglutide (Wegovy/Ozempic). Our weight loss clinic explains the other options we offer, and your prescriber can discuss which suits you.

Dose scaling and pen strength

Higher is not automatically better: the right dose is the one your prescriber finds effective and tolerable.

Comparing with Wegovy

Wegovy (semaglutide) is a once-weekly alternative whose pens are 0.25mg, 0.5mg, 1mg, 1.7mg and 2.4mg. Titration steps up after at least 4 weeks, reaching the 2.4mg maintenance dose from week 17. The first-order price of Wegovy's starting pen is £99.99. Which medicine suits you depends on your history and preferences, and your prescriber can advise.

What to expect from the schedule

A first pen provides four weekly doses, and the dose then steps up under your prescriber's direction. If you step up after 4 weeks on each dose, your first four pens (2.5mg to 10mg) cost £959.96 at standard prices; a new customer's first order is £40 less and every later order £25 less. Treatment sits alongside diet and activity changes, not instead of them, and your monthly reviews are where dose and progress are discussed.

Follow the pen's instructions for how to inject, and use the needles, sharps bin and guidance included with each order.

11 · Medicines, food and cautions

What to avoid while taking Mounjaro

The safest answer is to give your prescriber a full list of your medicines and conditions before you start, then follow the patient information leaflet. No food is banned on Mounjaro. Treatment works alongside a reduced-calorie diet and increased physical activity, and your prescriber or a dietitian can help shape that.¹

Which drugs should not be taken with Mounjaro?

Two interactions are worth knowing. Mounjaro slows stomach emptying, which can reduce how well oral contraceptive pills are absorbed. The SmPC advises switching to a non-oral method, or adding a barrier method (such as condoms), for 4 weeks after starting Mounjaro and for 4 weeks after each dose increase.¹ And if you use insulin or sulfonylureas, doses may need adjusting because of the risk of low blood sugar; this is a conversation to have with your prescriber, not a reason to change doses alone.¹³

Beyond these, tell the prescriber about every prescription, over-the-counter and supplement product you take. The consultation asks about current medicines for exactly this reason, and a prescriber reviews the answers before approving anything.

Supplements and "natural" alternatives

Low-cost supplements marketed as natural alternatives are available cheaply without assessment and have no clinical oversight. Their dosing is not standardised, and they are not equivalent to a licensed medicine. Treat dramatic weight-loss claims on any product with caution.

New symptoms and side effects

If you notice a new symptom, discuss it with your prescriber. If it is not a listed side effect in the patient leaflet, it is still worth reporting. You can report any suspected side effect through the MHRA Yellow Card scheme.¹⁹

Our team offers side-effect support as part of ongoing monthly reviews, and you can reach us Monday to Friday, 9am to 5pm. For severe stomach pain, swelling of the face, lips, tongue or throat, difficulty breathing or yellowing of the skin or eyes, get medical help straight away.

Storage in brief

Keep unopened pens in the fridge until first use; they keep until the printed expiry date. Once in use, a pen can be kept out of the fridge at a temperature not above 30°C for up to 30 days, and must then be thrown away. For any question about unopened pens left out of the fridge, check the patient information leaflet and ask the pharmacy.¹³

12 · Serious side effects

Serious side effects: when to get help straight away

Serious side effects are uncommon but need urgent attention. Seek immediate medical help for: severe, persistent stomach pain that may spread to your back, with or without vomiting (possible pancreatitis); pain in the upper right abdomen, fever or yellowing of skin/eyes (possible gallbladder problems); or signs of a severe allergic reaction such as swelling of the face or throat and difficulty breathing. If you take insulin or a sulfonylurea alongside Mounjaro, watch for low blood sugar (shakiness, sweating, confusion) — your prescriber may need to adjust those medicines.¹