Your Mounjaro price guide · October 2026
Prescription Medications With Weight Loss Side Effects (October 2026)
Several prescription medicines can lower weight as a side effect, but only a few are licensed for weight management, such as Mounjaro (tirzepatide) and Wegovy (semaglutide). Unintended weight loss from any other medicine should be raised with your prescriber rather than treated as a benefit.
One pen. Four weekly doses.
New customers£40 off your first order with code FIRST40. Standard price £169.99.
From your first consultation to ongoing care.
- GPhC-registered UK pharmacy
- Prescriber assessment
- Temperature-controlled delivery
- Advice from our pharmacy team
The price at every dose
Your treatment. Clearly priced.
Each KwikPen contains four weekly doses.
Your prescriber confirms the right dose for you.
| Dose | Per pen · 4 weeks | Future orders | Availability |
|---|---|---|---|
| 2.5 mgStarting doseIn stock | £129.99First orderStandard £169.99 | £144.99Every reorderCode DOSE25 | In stock |
| 5 mgIn stock | £178.99First orderStandard £218.99 | £193.99Every reorderCode DOSE25 | In stock |
| 7.5 mgIn stock | £239.99First orderStandard £279.99 | £254.99Every reorderCode DOSE25 | In stock |
| 10 mgIn stock | £250.99First orderStandard £290.99 | £265.99Every reorderCode DOSE25 | In stock |
| 12.5 mgIn stock | £279.99First orderStandard £319.99 | £294.99Every reorderCode DOSE25 | In stock |
| 15 mgMaximum doseIn stock | £289.99First orderStandard £329.99 | £304.99Every reorderCode DOSE25 | In stock |
- 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 11 October 2026
| Provider | 2.5mg | 5mg | 7.5mg | 10mg | 12.5mg | 15mg | Notes |
|---|---|---|---|---|---|---|---|
 £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 £304.99 | Consultation and next-day tracked delivery included |
| Boots Online Doctor | £179.00 | £199.00 | £259.00 | £299.00 | £319.00 | £339.00 | Free click & collect; cold-chain home delivery chargeable |
| Asda Online Doctor | £148.97 | £188.97 | £248.97 | £278.97 | £287.47 | £298.97 | Refrigerated delivery from £4.50; free click & collect |
| MedExpress | £179.99 | £189.99 | £249.99 | £279.99 | £299.99 | £309.99 | Delivery £2.90 to £3.95; new-customer discount at checkout |
| Simple Online Pharmacy | £169.00 | £199.99 | £259.99 | £279.99 | £299.99 | £319.99 | Delivery £4.99 per order |
| Oxford Online Pharmacy | £143.96 | £188.96 | £248.96 | £278.96 | £288.96 | £309.95 | Free consultation; cold delivery £5.49 |
| Chemist4U | £148.00 | £188.00 | £248.00 | £278.00 | £288.00 | £298.00 | Consultation included; free temperature-controlled delivery |
| Chemist Click | £163.99 | £173.99 | £232.99 | £259.99 | £279.99 | £299.49 | Cold-chain delivery charged; £20 off with code |
| Click Pharmacy | £169.99 | £189.99 | £239.99 | £269.99 | £289.99 | £299.99 | Free assessment; delivery £3.50 to £7.95 |
| Medino | £147.99 | £169.99 | £249.99 | £269.99 | £299.99 | £319.99 | Consultation and delivery included |
Prices collected weekly from each provider's published price list.
A quick overview
What to know
before you start.
-
Unplanned weight loss on any medicine is a reason to speak to your prescriber, not a treatment plan.
-
Mounjaro and Wegovy are licensed for weight management; seizure and other medicines are prescribed for other conditions.
-
Never stop or change a prescribed medicine, such as a seizure medicine, without medical advice.
-
Mounjaro's most common side effects are digestive and usually ease as your body adjusts.
-
Licensed treatment needs a prescriber to assess your BMI, history and current medicines.
In this guide
01 · The short answer
Which medicines have weight loss side effects?
Mounjaro is licensed for weight management in adults and for type 2 diabetes.1 It works by activating GIP and GLP-1 receptors, which helps regulate appetite and slows how quickly the stomach empties.1
For other medicines, including seizure medicines, ask your prescriber about their effect on weight. Never stop an anti-seizure medicine on your own. See our guides to drugs with a weight loss side effect and safe medications for weight loss.
02 · Tolerability
Which weight loss medication has the fewest side effects?
No licensed option is free of side effects, and your prescriber decides what suits you. For Mounjaro, most side effects are digestive: nausea, diarrhoea, vomiting, constipation and abdominal discomfort affect more than 1 in 10 people.1 They are most likely when starting or increasing a dose, and usually ease within days to a few weeks.1
| Mounjaro trial side effect | 5mg | 10mg | 15mg | Placebo |
|---|---|---|---|---|
| Nausea | 24.6% | 29.0% | 28.0% | 8.5% |
| Diarrhoea | 18.7% | 20.8% | 22.5% | 7.8% |
Our Mounjaro weight loss side effects and Wegovy side effects guides go further.
03 · Who should avoid it
Who should avoid weight loss medication?
Mounjaro is licensed for adults with a BMI of 30 or above, or 27 to 30 with at least one weight-related condition, used alongside a reduced-calorie diet and more activity.1 A prescriber assesses your BMI, history and current medicines first.1
If you take insulin or a sulfonylurea, watch for low blood sugar, because those medicines may need adjusting.13 Mounjaro should not be used if you are allergic to tirzepatide or any of its ingredients, or during pregnancy or while trying to conceive. Your prescriber will take extra care, or may recommend against treatment, if you have a history of pancreatitis, severe gut or digestive disease, diabetic retinopathy, or gallbladder problems. Mounjaro must not be used during pregnancy, and it should be stopped at least one month before trying to conceive. If you become pregnant during treatment, stop the medicine and tell your prescriber promptly. Mounjaro slows stomach emptying, which can reduce how well oral contraceptive pills are absorbed. Switch to a non-oral method, or add a barrier method (such as condoms), for 4 weeks after starting Mounjaro and for 4 weeks after each dose increase. Tell your prescriber about any history of depression.
04 · Serious side effects
Serious side effects to act on
Seek immediate medical help for severe, persistent stomach pain that may spread to your back, upper right abdominal pain with fever or yellowing skin or eyes, or swelling of the face or throat with difficulty breathing. Report suspected side effects through the Yellow Card scheme.19
If you have persistent vomiting or cannot keep fluids down, contact your clinical team — dehydration needs medical help straight away.
05 · Protecting muscle
Protecting muscle and nutrition
Some of any rapid weight loss comes from lean tissue. Include protein at every meal and do resistance exercise two or more times a week.1 Hair shedding was reported by 4.9% of people on tirzepatide in trials, against 1.0% on placebo.1 See also GLP-1 side effects.
06 · 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
How ordering works
How ordering works at EverydayMeds
Three steps, with our pharmacy team alongside you.
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.
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.
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.
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 teamWhat medications have weight loss side effects?
Do seizure medications cause weight loss?
Which weight loss medication has the fewest side effects?
Who should avoid weight loss medications because of side effects?
What can I do if I'm struggling to lose weight?
Is 2 stone a noticeable weight loss?
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.
EverydayMeds is operated by OVIO Ltd · GPhC-registered pharmacy 9012878 · Registered premises, Leicester · Superintendent Pharmacist: Mahommed Zunaid Ayub Patel