Your Mounjaro price guide · October 2026

Can I Prefill My Tirzepatide Syringes? (October 2026)

No, you should not prefill tirzepatide syringes. Mounjaro is already supplied as a pre-filled multi-dose KwikPen in six strengths from 2.5mg to 15mg, so no syringe is needed. Drawing doses out in advance removes the pen's protection, and the storage rules cover the pen itself.1

£129.99/ 4 weeks
2.5 mg starting dose
One pen. Four weekly doses.

New customers£40 off your first order with code FIRST40. Standard price £169.99.

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  • Prescriber assessment
  • Temperature-controlled delivery
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Compare UK Mounjaro Prices

Prices checked 11 October 2026

Published UK provider Mounjaro prices for the 2.5mg, 5mg, 7.5mg, 10mg, 12.5mg, 15mg doses, checked 11 October 2026.
Provider2.5mg5mg7.5mg10mg12.5mg15mgNotes
£40 off first order£129.99First orderReorders £144.99£178.99First orderReorders £193.99£239.99First orderReorders £254.99£250.99First orderReorders £265.99£279.99First orderReorders £294.99£289.99First orderReorders £304.99Consultation and next-day tracked delivery included
Boots Online Doctor£179.00£199.00£259.00£299.00£319.00£339.00Free click & collect; cold-chain home delivery chargeable
Asda Online Doctor£148.97£188.97£248.97£278.97£287.47£298.97Refrigerated delivery from £4.50; free click & collect
MedExpress£179.99£189.99£249.99£279.99£299.99£309.99Delivery £2.90 to £3.95; new-customer discount at checkout
Simple Online Pharmacy£169.00£199.99£259.99£279.99£299.99£319.99Delivery £4.99 per order
Oxford Online Pharmacy£143.96£188.96£248.96£278.96£288.96£309.95Free consultation; cold delivery £5.49
Chemist4U£148.00£188.00£248.00£278.00£288.00£298.00Consultation included; free temperature-controlled delivery
Chemist Click£163.99£173.99£232.99£259.99£279.99£299.49Cold-chain delivery charged; £20 off with code
Click Pharmacy£169.99£189.99£239.99£269.99£289.99£299.99Free assessment; delivery £3.50 to £7.95
Medino£147.99£169.99£249.99£269.99£299.99£319.99Consultation and delivery included

Prices collected weekly from each provider's published price list.

A quick overview

What to know
before you start.

  • Mounjaro is supplied as a pre-filled KwikPen, so you never need to draw up or prefill a syringe.
  • Storage guidance covers the pen only: fridge at 2–8°C, and up to 30 days (not above 30°C) out of the fridge once in use.
  • Prefilled syringes have no tested storage window, and you cannot easily check the liquid once it is drawn up.
  • If a pen looks cloudy, discoloured or has particles, do not use it. Contact the pharmacy.
  • Travelling is straightforward with the pen itself, so there is no reason to prefill for a trip.
In this guide

01 · The short answer

Do you need to prefill anything with Mounjaro?

No. Mounjaro is a once-weekly prescription medicine supplied as a pre-filled multi-dose pen (KwikPen), so the dose is set on the pen and there is nothing to prefill.1 If you have been given a vial or a syringe with a product described as tirzepatide, treat that as a red flag and check where it came from.

Our guides on syringes for Mounjaro and prefilling syringes with tirzepatide go further on the device question.

02 · What to do

What should you do instead?

Keep the pen in its storage conditions and inject straight from it. Keep pens in a fridge at 2–8°C and never freeze them. Once in use, a pen can stay out of the fridge not above 30°C for up to 30 days, then it should be discarded.1 That already covers most trips and busy weeks without any preparation.

If you are weighing up treatment, you can see the current Mounjaro pen prices and consultation, or read about our weight loss clinic.

03 · Why prefilling is risky

Why prefilling syringes is risky

The pen's storage and in-use rules were set for the pen, not for medicine sitting in a syringe. Any storage time you read online for tirzepatide held in a syringe does not apply to a UK pen.1

And once it is in a syringe, checking the liquid is harder.

04 · Checking your pen

How to check a pen is genuine and still good

A genuine UK Mounjaro pen comes from a registered pharmacy with a batch number and expiry date, 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, or has been out of the fridge for more than 30 days, or above 30°C in use.1

If supply or packaging ever seems wrong, check the pharmacy on the GPhC register and contact the pharmacy before injecting.12

05 · Travelling with a pen

Can you prefill for travel?

You do not need to. You can fly with Mounjaro: carry pens in hand luggage, because hold luggage can fall below freezing, ideally in a cool bag with the prescription label or a copy of your prescription.1

In-use pens tolerate up to 30 days not above 30°C, so most holidays need no special arrangements. For hot climates use an insulated pouch, and check destination rules for prescription injectables before you fly.1 Unopened pens stay in the fridge until the printed expiry date. If an unopened pen has been out of the fridge, check with the pharmacy before using it rather than relying on a remembered day limit, because figures online often come from other countries' labels.1

06 · Syringes and other products

What about insulin or peptide syringe advice?

Advice about insulin syringes or research peptides does not transfer to Mounjaro. Those answers relate to different products and devices. Needles, a sharps bin and injection guidance are included with every order, and each needle is for a single use.

For more on the topic, see GLP-1 syringes, the best syringes for Mounjaro, and why a Mounjaro shot can sting. Our bimagrumab and tirzepatide page covers a medicine still in development.

07 · Safe supply

Getting a genuine pen

Mounjaro is a prescription-only medicine, supplied only after an online consultation reviewed by a GPhC-registered prescriber. Be wary of anyone offering to supply tirzepatide without a consultation or prescription, or in vials or syringes. The MHRA publishes counterfeit medicine alerts and runs the Yellow Card scheme for reporting problems.7

We supply genuine KwikPens through official LillyDirect supply, with free next-day tracked delivery in temperature-controlled packaging. Ongoing monthly reviews are included. This page is information, not a substitute for medical advice.

How ordering works

How ordering works at EverydayMeds

Three steps, with our pharmacy team alongside you.

  1. EverydayMeds online consultation on a mobile phone

    Step 1: Online consultation — 5–10 minutes

    Complete a confidential health questionnaire covering BMI, medical history and current medication. No payment is taken until you're approved.

  2. A clinician ready to review an online consultation

    Step 2: Prescriber review — usually same day

    A UK registered prescriber checks your suitability against the licensed criteria (BMI ≥30, or ≥27 with a weight-related condition) and contraindications, and confirms your starting dose.

  3. An EverydayMeds delivery box

    Step 3: Next-day tracked delivery

    Dispensed by our GPhC-registered pharmacy in temperature-controlled packaging with needles and a sharps bin included. Orders approved by 3pm for next-day tracked delivery.

Start your free consultation

Prescription and dispatch follow clinical approval. Confirm current delivery options when ordering.

Afterwards you're not on your own: dose-change reviews are built in before each step up, our pharmacist team is available for side-effect questions, and repeat orders re-check suitability rather than auto-shipping.

Your questions, answered

Mounjaro price UK — frequently asked questions

Answers to common questions about Mounjaro prices, NHS access and ongoing treatment.

Ask our pharmacy team
Can I prefill my tirzepatide syringes?
No. Mounjaro comes as a pre-filled KwikPen, so there is nothing to draw up. The storage rules apply to the pen, not to tirzepatide stored in a syringe. Inject straight from the pen and follow its instructions for use.
Can I prefill my tirzepatide syringes for travel?
There is no need. In-use pens can stay not above 30°C for up to 30 days, which suits most trips. Carry the pen in hand luggage, ideally in a cool bag with your prescription label, and use an insulated pouch in hot climates.
How long can I store tirzepatide in a syringe?
Mounjaro is not designed to be stored in a syringe, so there is no storage time to give. The licensed rules cover the pen only: fridge at 2–8°C, and up to 30 days out of the fridge not above 30°C once in use.
Can I fill a syringe with tirzepatide?
Mounjaro is designed to be injected from its KwikPen, not drawn into a syringe. If you are unsure about a product you have been supplied, contact the pharmacy or your prescriber before using it.
Is it okay to prefill insulin syringes or peptide syringes?
That is a question for the prescriber or pharmacist for those specific products. It does not apply to Mounjaro, whose pen is supplied ready to use and has its own storage rules. Never apply advice for one medicine to another.
Can I reuse my syringe or needle for tirzepatide?
No. Needles supplied with your order are for single use and go into a sharps bin afterwards. Cleaning a needle or syringe does not make it safe to reuse. Ask the pharmacy if you need more needles.
What should I do if my pen looks cloudy or has particles?
Do not use it. The solution in a genuine pen is clear and colourless. Contact the pharmacy before injecting. You can report a suspected quality problem through the MHRA Yellow Card scheme.
Mahommed Zunaid Ayub Patel, Superintendent Pharmacist at EverydayMeds

Clinically reviewed by

Mahommed Zunaid Ayub Patel

Superintendent Pharmacist

Accountable for the safe running of our registered pharmacy — from dispensing checks to delivery.

GPhC registration no. 2217101 · check the GPhC register

Reviewed
Last updated
Next review

How we source our information

How we source our information: every clinical statement on this page is drawn from the sources below. Our prices are shown live from our pharmacy's product listings, and competitor prices show the date they were collected.

Sources — 4 references
  1. Mounjaro KwikPen — Summary of Product Characteristics (SmPC), electronic medicines compendium (EMC), 2026
  2. MHRA — guidance on contraception with GLP-1/GIP medicines; counterfeit medicine alerts and Yellow Card scheme
  3. GPhC — public register of pharmacies and pharmacy professionals
  4. Mounjaro KwikPen — Patient Information Leaflet (emc)

EverydayMeds is operated by OVIO Ltd · GPhC-registered pharmacy 9012878 · Registered premises, Leicester · Superintendent Pharmacist: Mahommed Zunaid Ayub Patel