- See how Mounjaro is changing lives with real transformations here!
- 2-pack and 3-pack bundle options available in multiple dosage strengths; for more information and pricing, please click here
- Each pen contains 4 doses, enough for 1 month's supply
- Injected once per week, at any time of the day
- Contains the active ingredient tirzepatide
- Treatment length varies per individual
- Always read the patient information leaflet before use
Buy Mounjaro Weight Loss Bundles UK
Our Mounjaro bundles provide a flexible, cost-effective way to manage your weight loss treatment. Unlike standard Mounjaro packs, Mounjaro bundles offer multiple pens in one purchase, making it easier to stay on track with your treatment, save money, and reduce the need for frequent consultations. Each bundle includes different strength combinations, as detailed below.
Start your Mounjaro bundles consultation
Mounjaro bundle directions
Always use the pens in your Mounjaro bundle exactly as described in the patient information leaflet or as advised by your doctor or Chemist4U pharmacist. For detailed instructions on how to use the pens in your bundle, including the disposal of empty pens and needles, read our ‘How to take Mounjaro’ guide.
Halving Mounjaro doses
Some people try to stretch their Mounjaro bundle by halving doses to make their pens last longer. We don’t recommend this or provide guidance on it. Mounjaro has set doses for a reason, and splitting them into smaller doses may reduce effectiveness, increase the risk of inaccurate dosing or expired medication use, and cause treatment gaps that could delay or cancel your next order for safety reasons.
Mounjaro side effects
Like all medicines, Mounjaro may cause side effects in some people, though not everyone will experience them. Common side effects may include:
- Nausea & vomiting
- Stomach (abdominal) pain
- Diarrhoea & constipation
For more details on side effects, including potentially serious reactions, refer to the patient information leaflet or read our in-depth ‘Mounjaro side effects’ guide for tips on managing Mounjaro symptoms.
Since you'll be following a titration path—where your Mounjaro dose gradually increases each month—side effects typically won’t be more severe with a higher-strength bundle like the Mounjaro Surge bundle. Your body will have had time to adjust to the medication throughout your weight loss journey.
Mounjaro warnings
- Do not use Mounjaro if you are allergic to tirzepatide or any of the other listed ingredients.
- Mounjaro bundles are only suitable for adults aged 18 and over.
- Do not use Mounjaro if you are pregnant or breastfeeding; contraception is also recommended during treatment.
- Inform your prescriber if you’re taking any other medications.
Mounjaro bundles with food, drink & alcohol
Mounjaro can be taken with or without food. If you’re unsure about diet restrictions while using your pens, read our ‘Mounjaro diet’ guide, which also includes advice on alcohol consumption during your treatment.
How to store your Mounjaro pens
Store your Mounjaro pens in the fridge between 2°C and 8°C in their original packaging to protect them from light. Need storage tips for travel or after first use? Our ‘Storage safety for weight loss injections’ guide has everything you need to keep your Mounjaro pens safe and effective.
Find similar products
Mounjaro Bundles - Weekly Weight Loss Injection Bundles Reviews
Advice & Guides
Mounjaro vs Wegovy
Switching from Wegovy to Mounjaro
How to take Mounjaro in 8 easy steps
How often to use Mounjaro and when to increase your dose
Mounjaro diet: what to eat and what to avoid
The Mounjaro dosing schedule and titration calendar
How to relieve stomach issues caused by Mounjaro
Mounjaro side effects and how to treat them
Can you get Mounjaro on the NHS?
The National Institute for Health and Care Excellence (NICE) approved Mounjaro in October 2023 as a treatment for type 2 diabetes and for weight loss in January 2024.
The NHS now offers it to adults with a BMI of 35+ and at least one weight-related health condition.
Current access:
- Since March 2025: Through specialist NHS weight management clinics (GP referral required)
- From June 2025: Directly from GPs for high-risk patients meeting strict criteria
Where can I buy Mounjaro?
You can purchase Mounjaro from Chemist4U after completing a quick consultation. During this process, you’ll answer a few simple health questions and upload a photo of yourself to support your answers.
If you’re suitable for treatment, you’ll start on the lowest dose of 2.5mg. Your dose will gradually increase if you and your prescriber find it effective and you’re tolerating it well.
Does Mounjaro have side effects?
Like all medicines, Mounjaro has side effects, although not everyone will get them. Some of the most common side effects of Mounjaro include:
- Nausea
- Vomiting
- Stomach (abdominal pain)
- Diarrhoea
- Indigestion
- Belching
For more information on Mounjaro side effects, including how to treat them and potential severe side effects, you can read our guide here.
How much do the 2.5mg and 5mg of Mounjaro cost?
At the time of writing, the 2.5mg dose of Mounjaro costs £130, and the 5mg dose is £139 when purchased separately. However, you can save with the Starter Bundle, which includes both doses starting at £240.
Choosing a Mounjaro bundle not only reduces the number of consultations needed but is also more cost-effective.
How much do the maintenance doses of Mounjaro cost?
The maintenance doses for Mounjaro range from 5mg, 10mg and 15mg, but not everyone will need the highest dose to maintain their weight loss. At the time of writing, the 5mg is £139, the 10mg is £185 and the 15mg is £200.
However, opting for a bundle for your maintenance doses means you’ll save money and need less consultations. For more information on Mounjaro bundles, click the highlighted link.
Is it better to buy a Mounjaro weight loss bundle?
Not always, as it depends on what is right for you and your lifestyle.
However, choosing a bundle is a more affordable option and minimises the number of consultations required. If you’re unsure which bundle is right for you, always speak to your prescriber for advice.
For more information about Mounjaro bundles, click the highlighted link.
Is Mounjaro better than Wegovy?
Mounjaro is more effective than Wegovy when it comes to weight loss results. Research has concluded that people who use Mounjaro lose more weight than those who use Wegovy.
Mounjaro and Wegovy both work in a similar way, however, they are not the same. What works for one person might not be suitable for you.
Is Mounjaro safe for weight loss?
Mounjaro is a safe and effective way to lose weight if you’re obese. It has been approved for weight loss by the MHRA. However, Mounjaro does have side effects that you should be aware of.
What is Mounjaro?
Mounjaro is a prescription medication that you inject yourself. It’s used for diabetes and weight loss.
Alongside an active and reduced-calorie diet, Mounjaro helps you to lose weight by suppressing your appetite. It allows you to feel fuller for longer and reduces your food cravings.
What needle size do I need for Mounjaro?
The Mounjaro KwikPen works with ISO 11608-2 compliant pen needles from brands like BD, Novo Nordisk and Terumo. Your needle length and gauges need to be any of the following combinations:
- Lengths: 4 mm, 5 mm, 6 mm, 8 mm, 12.7 mm
- Gauges: 29G, 31G, 32G, 33G, 34G
