Your Mounjaro price guide · October 2026

GLP-1 vs GLP-3: What's the Real Difference? (October 2026)

Clinically reviewed by Mahommed Zunaid Ayub Patel, Superintendent Pharmacist

Reviewed Last updated Next review

"GLP-3" is not an approved medicine class in the UK, so there is no licensed GLP-3 to compare with GLP-1. The term is usually used loosely for triple-receptor drugs such as retatrutide, which has no UK licence, or mistakenly for Mounjaro, which acts on two receptors (GIP and GLP-1).1 Licensed options today are Mounjaro and Wegovy.

£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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Side by side

GLP-1 vs GLP-3 at a glance

Prices are for one four-week pen.
Your prescriber decides which treatment suits you.

There is no licensed "GLP-3"; the licensed options are GLP-1 medicines such as Wegovy and the dual GIP and GLP-1 medicine Mounjaro.

Mounjaro vs Wegovy Prices checked 10 October 2026
Mounjaro vs Wegovy: prices, doses and key differences side by side.
Mounjarotirzepatide Wegovysemaglutide
Price per pen · 4 weeksfrom £129.99First orderStandard from £169.99from £99.99First orderStandard from £139.99
Doses2.5–15 mg6 strengths0.25–7.2 mg6 strengths
AvailabilityAll doses in stock All doses in stock
Start free consultationStart free consultation
Offer prices are for new customers on their first order with code FIRST40. Prices are for one four-week pen at the lowest dose. Your prescriber decides which treatment is suitable.
  • Price includes prescriber assessment and standard delivery — no consultation fees
  • Orders approved by 3pm for next-day tracked delivery
  • GPhC-registered pharmacy 9012878
  • Needles and sharps disposal included

Compare UK Mounjaro Prices

Prices checked 10 October 2026

Published UK provider Mounjaro prices for the 2.5mg, 5mg, 7.5mg, 10mg, 12.5mg, 15mg doses, checked 10 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.

  • There is no licensed "GLP-3" medicine in the UK; the term is informal and often misleading.
  • Mounjaro (tirzepatide) is a dual GIP and GLP-1 agonist, not a GLP-3.
  • Wegovy (semaglutide) is a single-action GLP-1 medicine; in the head-to-head SURMOUNT-5 trial tirzepatide lost 20.2% vs 13.7% on average.
  • Retatrutide has no UK licence and should never be combined with licensed treatment or bought from sellers.
In this guide

01 · The verdict

GLP-1 or GLP-3: which suits you?

For a UK adult wanting weight-loss treatment, the choice is between licensed medicines: Mounjaro or Wegovy. A "GLP-3" is not one of the options, because none is licensed or regulated for supply here. For the wider picture, see our GLP-1 and GLP-3 difference guide and the GLP-3 vs tirzepatide comparison.

Wegovy is a single-action GLP-1 medicine. Mounjaro is a dual-action medicine; your prescriber decides what suits you. Both need a consultation. You can start your free consultation and a GPhC-registered prescriber will review which is appropriate.

TermReceptorsStatus in UKWeight-loss evidence
GLP-1 (Wegovy, semaglutide)GLP-1LicensedSURMOUNT-5: 13.7% average with semaglutide 2.4mg over 72 weeks15
Mounjaro (tirzepatide)GIP and GLP-1LicensedSURMOUNT-5: 20.2% average over 72 weeks15
"GLP-3" (e.g. retatrutide)Three receptors, including glucagonNo UK licence—

Individual results vary. Our Mounjaro pen has a standard price of £169.99 per month at the 2.5mg starting dose, and the Wegovy pen is a licensed alternative. Prices checked 10 October 2026.

02 · Is Mounjaro a GLP-3?

Is Mounjaro a GLP-3?

No. Tirzepatide activates two receptors, GIP and GLP-1, which together help regulate appetite, slow stomach emptying and improve insulin response.1 That dual action distinguishes it from single-action GLP-1 medicines such as semaglutide.

In the head-to-head SURMOUNT-5 trial, adults on tirzepatide lost on average 20.2% of body weight over 72 weeks versus 13.7% on semaglutide 2.4mg. Both are effective, licensed treatments.15

03 · Is Ozempic a GLP-3?

Is Ozempic a GLP-3?

No. Ozempic is semaglutide, a GLP-1 medicine licensed for type 2 diabetes, not for UK weight loss; private prescribing for weight loss is off-label. The licensed weight-management options are Mounjaro and Wegovy (semaglutide 2.4mg).18 A regulated UK pharmacy will not supply Ozempic for weight loss.

04 · Unlicensed triple agonists

Retatrutide and other unlicensed drugs

Retatrutide has no UK licence. Mounjaro must not be combined with other GLP-1 medicines, unlicensed "research" peptides (such as retatrutide, which has no UK licence) or compounded copies, because these have no safety data and no regulated supply chain. Promises of faster results outside a licensed pathway are the warning sign. Report suspected side effects through the MHRA Yellow Card scheme. Only buy from a pharmacy you can verify on the GPhC register, never from social media, beauty salons or unverified websites. For other pipeline drugs, see pemvidutide vs tirzepatide and VK2735 vs tirzepatide.

05 · Other comparisons

Other comparisons

For other comparisons, see SGLT2 vs GLP-1 and fasting vs GLP-1. Browse all weight loss treatments.

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
Is Mounjaro a GLP-3?
No. Mounjaro (tirzepatide) activates two receptors, GIP and GLP-1. It is a dual agonist and is licensed in the UK for weight management and type 2 diabetes. "GLP-3" is not an approved medicine class, so Mounjaro should not be described that way.
What is better, GLP-1 or GLP-3?
There is no licensed GLP-3 to compare. In the head-to-head SURMOUNT-5 trial, tirzepatide averaged 20.2% weight loss versus 13.7% for semaglutide 2.4mg over 72 weeks. Both are effective, and the right choice depends on your health profile and prescriber advice.
Does GLP-3 work for weight loss?
There is no licensed "GLP-3" in the UK. Products sold as GLP-3 outside a prescription pathway carry unknown safety and quality risks.
Is Ozempic a GLP-3?
No. Ozempic is semaglutide, a single-action GLP-1 medicine licensed for type 2 diabetes. It is not a UK weight-loss licence; the licensed options for weight management are Mounjaro and Wegovy.
Which GLP-1 medicine is right for weight loss?
No licensed medicine is best for everyone. In the head-to-head SURMOUNT-5 trial, tirzepatide averaged 20.2% weight loss versus 13.7% on semaglutide 2.4mg over 72 weeks. Trial averages do not predict your own result; your prescriber decides what suits you.
What happens when you stop taking GLP-1?
In SURMOUNT-4, people who stopped tirzepatide after 36 weeks regained on average 14% of body weight over the following year, while those who continued lost a further 5.5%. Stopping should always be planned with your prescriber, with diet and activity habits ready to carry the load.
What is known as the poor man's Ozempic?
Supplements such as berberine are marketed this way, but they are not medicines, are not regulated for this use and have no comparable trial evidence. Licensed options are prescription treatments assessed by a prescriber.
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 — 6 references
  1. Mounjaro KwikPen — Summary of Product Characteristics (SmPC), electronic medicines compendium (EMC), 2026
  2. Jastreboff AM, et al. Tirzepatide Once Weekly for the Treatment of Obesity (SURMOUNT-1). N Engl J Med 2022;387:205–216
  3. MHRA — guidance on contraception with GLP-1/GIP medicines; counterfeit medicine alerts and Yellow Card scheme
  4. Wilding JPH, et al. Once-Weekly Semaglutide in Adults with Overweight or Obesity (STEP 1). N Engl J Med 2021;384:989–1002
  5. Aronne LJ, et al. Tirzepatide as Compared with Semaglutide for the Treatment of Obesity (SURMOUNT-5). N Engl J Med 2025
  6. Wegovy — Summary of Product Characteristics (SmPC), electronic medicines compendium (EMC)

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