Mounjaro (Tirzepatide) Weight Loss Injections

Mounjaro is a GLP-1 medication that mimics your natural hormones to help reduce hunger and support sustained fat loss.

£151.99 GBP

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Mounjaro highlights

✓Contains tirzepatide, a dual GIP/GLP-1 receptor agonist that helps reduce appetite and support fat loss
✓Once-weekly injection using a discreet, pre-filled pen
✓Lose an average of 22.5% of your body weight over 72 weeks at the highest dose
✓Available in six strengths, from 2.5mg up to 15mg, with your dose increased gradually to improve tolerability
✓UK-registered clinicians and discreet delivery

Mounjaro Bundle	Bundle Price	You Save
2.5mg+2.5mg	£274.00	£24.00
2.5mg+5mg	£294.00	£24.00
5mg+5mg	£314.00	£24.00
5mg+7.5mg	£364.00	£30.00
7.5mg+7.5mg	£414.00	£36.00
7.5mg+10mg	£439.00	£35.00
10mg+10mg	£464.00	£34.00
10mg+12.5mg	£484.00	£30.00
12.5mg+12.5mg	£504.00	£26.00
12.5mg+15mg	£519.00	£35.00
15mg+15mg	£534.00	£44.00

Prices shown are for the complete two-pen bundle, based on current single-pen pricing. Treatment, dose and dose progression remain subject to clinical assessment and prescription.

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Regulated by the GPhC

Regulated by the CQC

LegitScript Certified

ICO Certified

Regulated by the MHRA

Regulated by the GPhC

Regulated by the CQC

LegitScript Certified

ICO Certified

Regulated by the MHRA

What is Mounjaro?

Mounjaro is a prescription-only weight loss injection containing tirzepatide, a dual GIP and GLP-1 receptor agonist. Unlike GLP-1-only treatments, Mounjaro works on two hormone pathways simultaneously, making it the most clinically effective licensed weight loss injection currently available in the UK. It is administered once weekly via a pre-filled pen and is licensed by the MHRA for adults with a BMI of 30 or above, or a BMI of 25 or above with at least one weight-related health condition such as high blood pressure, high cholesterol, or type 2 diabetes.

How does Mounjaro work?

Tirzepatide mimics two naturally occurring hormones, GIP and GLP-1, that are released after eating. Together they signal to the brain that you are full, reduce appetite and food cravings, and slow the rate at which food leaves the stomach. Because Mounjaro activates both pathways rather than one, it produces a stronger effect on appetite regulation than GLP-1-only treatments, which is reflected in the clinical trial results.

What are the ingredients in Mounjaro?

Active ingredient: tirzepatide (2.5mg, 5mg, 7.5mg, 10mg, 12.5mg, or 15mg depending on dose). Other ingredients: trisodium citrate
dihydrate, citric acid monohydrate, mannitol, polysorbate 80, and water for
injections.

Frequently asked questions

Everything you need to know before you start your weight loss journey.

How is the Mounjaro pen used?

Mounjaro comes as a pre-filled injection pen and is injected once a week under the skin, in your abdomen, thigh, or upper arm. The pen is designed for straightforward self-injection and comes with clear instructions.

How should Mounjaro be stored?

Mounjaro should be stored in a refrigerator between 2°C and 8°C. It should not be frozen. Once in use, the pen can be kept at room temperature (below 30°C) for up to 21 days. Keep it away from direct sunlight
and out of reach of children.

What are the most common side effects of Mounjaro?

The most commonly reported side effects are gastrointestinal, including nausea, diarrhoea, vomiting, and constipation.
These are most likely to occur when starting treatment or when the dose is increased, and typically ease over time. Your clinician will advise you on managing any side effects and can adjust your plan if needed.

Does Mounjaro burn fat?

Mounjaro does not directly burn fat, but it creates the conditions for fat loss by significantly reducing appetite and calorie intake. When combined with a reduced-calorie diet, the resulting calorie deficit leads to fat loss over time.

How does weight loss progress week by week on Mounjaro?

Most people notice a reduction in appetite and food noise within the first one to two weeks. Visible weight loss typically begins within the first month and becomes more significant as the dose is increased every
four weeks. The greatest results are usually seen between months three and six.

What level of support is offered while I am taking Mounjaro?

The SwiftDoctor clinical team is available throughout your treatment to answer questions, monitor your progress, and make any adjustments to your prescription. All support is provided online, with no need for
in-person appointments.

Is Mounjaro available on the NHS?

Mounjaro is available on the NHS through certain GP practices and specialist weight management services, though access remains limited and criteria are strict. SwiftDoctor offers private consultations for
eligible patients who want to begin treatment sooner.

Can I switch from Mounjaro to Wegovy?

Switching between treatments is possible and can be discussed during your consultation. Your clinician will assess whether a switch is appropriate based on your current progress and health profile.

What happens if I miss a dose?

If you miss a dose of Mounjaro, take it as soon as possible within four days of the missed dose. If more than four days have passed, skip the missed dose and continue with your next scheduled injection. Do not take two doses within the same week.

How it works

Throughout your treatment, the SwiftDoctor clinical team is available to support you, answer questions, and review your progress.

Step 1

Create your account

Create your free account to access our GP-led healthcare services. Your details are securely stored so you can manage prescriptions, place future orders more quickly, and access ongoing clinical support whenever you need it.
Step 2

Complete your health questionnaire online in around five minutes

Takes around five minutes. Answer a few straightforward questions about your health history, lifestyle, and goals — all from the comfort of your home, with no GP appointment needed. Add your desired medication to your basket and make payment.
Step 3

A UK-registered clinician reviews your responses

A UK-registered clinician personally evaluates your submission to ensure Mounjaro is safe and appropriate for you. Your health is never treated as a formality.
Step 4

If eligible, your prescription is issued

If you meet the clinical criteria, your prescription is approved and prepared without delay. No waiting rooms. No repeat visits. Just a clear, straightforward process.
Step 5

Your medication is dispatched in discreet, temperature-controlled packaging directly to your address

Your medication is dispatched in plain, temperature-controlled packaging — protecting both its integrity and your privacy. Straight to your address, on your schedule.

Meet our clinical team

Start your journey today!

Dr S. Bano
Dr Bano is a co-founder of SwiftDoctor. She is an experienced General Practitioner with a special interest in obesity management, medical education, and digital health. She qualified as a doctor from the University of Nottingham in 2011 and has since built a diverse and impactful career in both clinical and educational settings, bringing that clinical rigour to every SwiftDoctor consultation so patients can trust their treatment plan is safe and evidence-based.
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Nasir Ali
Mr Nasir Ali is a co-founder and the Superintendent Pharmacist at SwiftDoctor. He is a highly experienced Advanced Clinical Practitioner. With extensive experience in primary care, he has worked across GP surgeries and digital health clinics, bringing a deep understanding of both face-to-face and virtual models of care to ensure every SwiftDoctor patient receives their medication safely, quickly and with expert oversight.
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Jane Eastwood
I am a Registered Nurse with 23 years’ experience – I have worked extensively in New Zealand and in the UK and I currently work as an Advanced Clinical Practitioner in the General Practice setting and I have special interests in menopause, diabetes, general practice and the older adult, helping SwiftDoctor patients feel truly listened to and supported at every stage of their care.
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Sherri Crystel
Founder of Crystel Coaching and creator of the Forever Young Method, helping SwiftDoctor patients build strength, confidence and healthy habits to support their weight loss journey.
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Sonya Braddock
Mindset and Mental Fitness Coach helping SwiftDoctor patients build self-awareness, resilience and healthier ways of thinking to support lasting change.
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Jennifer Thawley
Diet and nutrition coach at JT Diet, helping SwiftDoctor patients build sustainable, personalised eating habits that support long-term weight management.
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