Is There Still a Mounjaro Shortage? UK Supply Update (October 2026)

01 · The short answer

Is there still a shortage of Mounjaro?

What we can state is our own position: all six doses, from 2.5mg to 15mg, are in stock as of October 2026. We supply genuine KwikPens direct from Eli Lilly's UK distribution through official LillyDirect supply.

Online chatter about whether the shortage is over mixes old and new stories. Some of it concerns wholesalers, some concerns a single dose at a single shop, and some concerns other countries. If you want the longer view, our guides on whether the Mounjaro shortage is over and on a Mounjaro national shortage go through each of those cases separately.

The practical test is simple. Can you order the strength you need today, from a regulated pharmacy, with a prescriber review? If yes, you are not personally facing a shortage, whatever the headlines say. You can check the live position on the Mounjaro pen page, where your first 2.5mg pen costs £129.99 with code FIRST40 (standard price £169.99).

02 · If you can't get your dose

What to do if your pharmacy cannot supply your strength

Contact your prescriber before doing anything else, because the right move depends on which strength is missing and where you are in treatment.

Each row has the same logic: keep a prescriber in the loop, stay with regulated supply and never improvise a dose. If you would like to start or restart, the free consultation on our weight loss clinic page is the way in.

03 · Why GLP-1 supply gets tight

Why GLP-1 medicines sometimes run short

Demand for weight-management injections has grown faster than manufacturing can easily expand. That is the broad reason people ask whether there is a GLP-1 shortage at all. Our companion guide, is there a GLP-1 shortage, covers the wider class in more detail.

Several things can tighten supply without a formal national shortage:

• Sudden demand spikes when news stories, price changes or celebrity coverage send many people to order at once.
• Dose-specific gaps, where one strength is scarce while others are plentiful. Mounjaro comes in six strengths, so a gap in one is not a gap in all.
• Wholesale and distribution limits, which control how much stock reaches each pharmacy even when the manufacturer is producing normally.
• Cold-chain handling, because pens must be stored at 2–8°C until first use, so stock cannot simply be held loosely anywhere.

None of these tells you the medicine is permanently unavailable. They tell you that supply is a moving target and that a good provider plans around it. Once a pen is in use, it can be kept out of the fridge at a temperature not above 30°C for up to 30 days after first use, and must then be thrown away.¹³

04 · Checking a shortage claim

How to check whether a shortage claim is real

Treat a shortage claim as unproven until it comes from an official or regulated source. The internet is full of alarming posts, and the loudest ones are often the least reliable. A few habits help you sort real information from noise.

• Look for who is speaking. A regulator, the manufacturer or a registered pharmacy is more reliable than a forum thread or video title in capital letters.
• Separate local from national. A friend who could not find a pen at one shop has described a local gap, not a national shortage.
• Ask what exactly is short. One strength, one wholesaler or all supply? The answers differ enormously.
• Check the date. Old stories resurface constantly and look current. If a post gives no clear date, do not rely on it.
• Go to the supplier. The most useful evidence is whether you can order your strength now. Ours is shown live as in stock on every page.

Be especially wary if supply stories are used to sell you something. Sellers who offer to supply without a consultation or prescription are a red flag, and counterfeit pens have been the subject of MHRA alerts.⁷ You can confirm any pharmacy on the GPhC register; ours is GPhC 9012878.

05 · Price rises and supply

Price changes and supply are not the same thing

A higher list price is a pricing event, not proof of scarcity. Eli Lilly raised the UK list price of Mounjaro in September 2025, which pushed many people to rethink where and when they buy. That change in behaviour can look like a supply problem, because demand shifts quickly even if the amount of medicine has not changed.

If you are weighing cost, the useful comparison is across providers rather than across headlines. Across the UK pharmacies we track, the cheapest and dearest Mounjaro pens sit between £143.96 and £339.00 per month depending on dose and provider, checked 10 October 2026. The gap between providers for the same dose ranges from £27 to £41.

Our own pricing is shown live. A new customer saves £40 on their first order at any dose with code FIRST40, and an automatic £25 reorder discount applies to every future order (code DOSE25). Our guide to when the Mounjaro shortage will end explains why price news and supply news so often get mixed together.

06 · NHS and private supply

NHS and private supply: do they differ?

They draw on the same medicine but reach patients through different routes, so your experience of availability can differ. 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, and 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. If you are already on an NHS prescription and your pharmacy cannot fill it, speak to your GP or prescriber rather than trying to fix it yourself.

If you use private treatment, check what the provider does when stock is tight. We run ongoing monthly reviews, re-check suitability on every repeat order and do not auto-ship, so your prescriber knows where you are in treatment. That matters when a strength is delayed, because a dose decision should be a clinical one.

07 · Alternatives to Mounjaro

What can I take instead of Mounjaro?

The only sensible alternative is another licensed medicine chosen with a prescriber, not a supplement or an unregulated product. For most people considering a swap, that means Wegovy (semaglutide), a once-weekly injection like Mounjaro. You can read more on the Wegovy pen page, where your first pen is £99.99 as a first-order price.

Liraglutide (Saxenda, and products such as Erly) is a different option. It is supplied at 6mg/ml and is a daily injection, unlike once-weekly Mounjaro and Wegovy.

The two main medicines work differently. Tirzepatide activates two gut-hormone receptors, GIP and GLP-1, which distinguishes it from single-action medicines such as semaglutide.¹ A prescriber can weigh your history, tolerance and goals against each option.

Remember that any starting point matters. Your prescriber decides when to switch and which dose to start on, and Wegovy's licensed dose ladder starts at 0.25mg, so ask before you act.

08 · Staying on track safely

Staying on track if supply is disrupted

The safest response to a supply wobble is to plan early and keep your prescriber informed.

If a gap does mean you miss treatment, it helps to know that tirzepatide has a half-life of about five days, so after a final dose it takes roughly four to five weeks to clear the system. There is no way to speed this up, and nothing needs doing while it clears.¹ What that means for restarting your dose depends on how long the gap was, so ask your prescriber rather than guessing.

Treatment works alongside a reduced-calorie diet and increased physical activity, not instead of them. Keeping your food and activity habits steady is the part you control while supply settles.

The free GLPTrackr app can help you log doses and dates, which makes it easier to tell your prescriber exactly what happened if a delivery slips.

09 · How ordering works

How ordering works with us

Ordering is a short, regulated process that starts with a free consultation. The steps are:

• Free online consultation. A short health questionnaire, with no charge and no obligation.
• Prescriber review. Your answers are reviewed by a GPhC-registered prescriber, not a scoring script. Payment is taken when you place the order; if the prescriber decides the treatment is not suitable, the order is refunded automatically in full.
• Dispensing and dispatch. Our registered pharmacy dispenses your pen, with same-day dispatch when ordered by 3pm.
• Delivery. Free next-day tracked delivery in discreet, temperature-controlled packaging. Saturday delivery is £14.99.

The consultation is free and the price shown is the price paid. You can pay by Visa or Mastercard, Klarna or pay-monthly options, and there are no subscriptions. Needles, a sharps bin and injection guidance come with every order. Our live Mounjaro shortage update today page is the quickest way to see our latest position.

Mounjaro is a prescription-only medicine, supplied only after an online consultation reviewed by a GPhC-registered prescriber. It is used alongside a reduced-calorie diet and increased physical activity. This page is information, not a substitute for medical advice.