Mounjaro for Weight Loss and Type 2 Diabetes
Mounjaro (tirzepatide) is indicated for chronic weight management in adults with obesity (BMI ≥30) or overweight (BMI ≥27) with at least one weight-related comorbidity. It is also approved for the treatment of adults with type 2 diabetes mellitus to improve glycemic control, alongside diet and exercise.
Mounjaro is a once-weekly injection that mimics the action of both GLP-1 and GIP hormones, helping to regulate appetite, glucose levels, and food intake, resulting in significant weight loss.
What is Mounjaro used for?
Mounjaro (tirzepatide) is a prescription medicine licensed in the UK for chronic weight management in adults with obesity, and for type 2 diabetes. It is a once weekly injection, not available over the counter. A registered prescriber must assess you and decide whether it is clinically appropriate before it can be prescribed. Pharmazon HomeCare dispenses and delivers valid Mounjaro prescriptions.
How does Mounjaro work?
Mounjaro's active ingredient is tirzepatide, a dual GIP/GLP-1 receptor agonist. That means it acts on two gut hormone pathways at once, rather than one. Broadly, it slows digestion, increases feelings of fullness, and reduces appetite, which for most patients means eating less without the same degree of hunger. Individual response varies, and Mounjaro works best alongside changes to diet and activity, not instead of them. As with any medicine, side effects are possible; common ones include nausea, constipation and diarrhoea, particularly during dose increases.
Mounjaro is injected once a week, using a pre-filled pen, usually into the abdomen, thigh or upper arm. Treatment typically starts on a low dose, which a prescriber may increase over time depending on response and tolerability.
Who may be eligible for Mounjaro?
Mounjaro may be considered for adults with obesity, or with overweight and a weight related health condition, and separately for adults with type 2 diabetes. Eligibility also depends on medical history, current medication, and contraindications. Meeting a general BMI guide does not guarantee that Mounjaro will be prescribed. That decision sits with the assessing prescriber, based on a full clinical picture.
Delivery, storage and discretion
Mounjaro pens generally need to be stored in a fridge, though you should always follow the storage instructions in the patient information leaflet supplied with your specific prescription. Where a prescription needs temperature-controlled handling, our pharmacy packages it appropriately for transit and dispatches it using tracked delivery. If your Mounjaro arrives feeling warm, do not use it. Contact our pharmacy team first.
| Type of Medicine | A dual GLP-1 and GIP receptor agonist |
|---|---|
| Used for | Chronic weight management and management of type 2 diabetes in adults |
| Also called | Tirzepatide |
| Available as | Injections |
Mounjaro (Tirzepatide) helps achieve an average weight loss of approximately 20% by reducing appetite and increasing feelings of fullness, which leads to decreased caloric intake. It is used as part of a comprehensive treatment program that includes lifestyle changes like diet and exercise.
What is Tirzepatide available as?
- Injections: Available in a single pen containing doses for 4 weeks.
When should I give Tirzepatide?
Mounjaro is administered once a week on the same day each week. You can inject it at any time of day, with or without food, but maintaining a consistent schedule is recommended.
How much should I give?
Your healthcare provider will determine the appropriate dosage based on your weight management or diabetes control goals. Treatment typically starts with a specific dose, which may be adjusted based on your response and tolerability.
| Dose | RRP Price | Discount price to New Patient | 2nd Dose | Subscription |
|---|---|---|---|---|
| Mounjaro 2.5mg | £159 | £139 £20.00 off first dose | £149 £10.00 off second dose | £139 Min 6 months |
| Mounjaro 5mg | £179 | £159 £20.00 off first dose | £169 £10.00 off second dose | £159 Min 6 months |
| Mounjaro 7.5mg | £229 | £209 £20.00 off first dose | £199 £10.00 off second dose | £209 Min 6 months |
| Mounjaro 10mg | £249 | £229 £20.00 off first dose | £239 £10.00 off second dose | £229 Min 6 months |
| Mounjaro 12.5mg | £269 | £249 £20.00 off first dose | £259 £10.00 off second dose | £249 Min 6 months |
| Mounjaro 15mg | £289 | £269 £20.00 off first dose | £279 £10.00 off second dose | £269 Min 6 months |
Frequently asked questions
Is Mounjaro available on prescription only?
Yes. Mounjaro is a prescription-only medicine.
Does Pharmazon HomeCare prescribe Mounjaro?
No. We dispense and deliver valid prescriptions issued after clinical assessment by a registered prescriber. Clinical assessment for this pathway is provided by Iris Health.
How is Mounjaro delivered?
Once your prescription is verified and dispensed, it is packaged appropriately, including temperature control where needed, and sent by tracked delivery.
Does Mounjaro need to stay cold?
Generally, yes. Always check the patient information leaflet for your specific pen, and contact us if a delivery arrives warm.
Is Mounjaro delivery discreet?
Yes, our packaging does not disclose its contents.
Can I choose which dose of Mounjaro I get?
No. Dose is decided by your prescriber based on clinical assessment and how you respond to treatment, not by personal preference. The pricing table above reflects what each dose costs once it has been prescribed for you.
Reviewed by Archna Gudka, a GPhC-registered pharmacist with over two decades of experience in pharmacy, including 18 years in community pharmacy providing front-line patient care. At Pharmazon HomeCare, an ADHD specialist pharmacy, she has spent the past three years developing her clinical expertise in the management of ADHD and other neurodevelopmental conditions, supported by additional specialist training from the UK Adult ADHD Network (UKAAN). Her areas of clinical focus include ADHD care, neurodevelopmental support, weight management, and evidence-based, patient-centred pharmacy practice. This content is provided for general information only and should not replace personalised advice from your prescribing clinician or pharmacist. Next review: December 2026.
