Mounjaro Injection: Prescription-Only Weight Loss Treatment
Available on prescriptionMedication Features
* Mounjaro is a prescription-only injection. It will only be supplied following an online consultation and approved by a UK-registered prescriber.
Consultation and prescription are required before dispatch.
Mounjaro is a once-weekly injectable medication designed to support weight loss. It contains the active ingredient tirzepatide, a compound that helps regulate appetite and blood sugar levels.
Each pack of Mounjaro includes four doses, administered weekly, and can be purchased online from Mounjaro Injection Weight Loss. Tirzepatide works by mimicking natural hormones that reduce hunger and control glucose, which leads to effective weight loss when used consistently.
Approved by the MHRA for both weight management and type 2 diabetes, Mounjaro KwikPen (tirzepatide) has delivered exceptional results in clinical research.
Each pack of Mounjaro contains 4 x weekly doses.
Reviewed By: Dr. H. Hamid
Last reviewed on: 05/08/2025Buy Prescription-Only Mounjaro Weight Loss Injection in the UK
Mounjaro is a once-weekly weight loss injection designed to support fat reduction by curbing appetite and managing blood sugar levels. It is administered weekly as a subcutaneous injection (under the skin). You can order Mounjaro Weight Loss Injection online from our UK-regulated Mounjaro Injection Weight Loss service.
The active compound in Mounjaro is tirzepatide, a prescription medication used for adults with obesity. It mimics the body’s natural GLP-1 and GIP hormones, which work to suppress hunger and stabilise blood glucose levels.
Please note: Mounjaro is a prescription-only treatment. You’ll need to complete a short online consultation, which will be assessed by our UK-registered doctors before purchase.
If approved, your prescription will be forwarded to our pharmacy team for dispatch and home delivery. If Mounjaro isn’t suitable for you, our doctors will recommend an appropriate alternative.
How to Order Mounjaro Weight Loss Injection Online?
Fill out the Free Consultation Form
Complete a quick online consultation form to share details about your health and any existing medical conditions.
Select Your Treatment
Based on your consultation, you’ll see the treatments you’re eligible for. Choose the one that best suits your needs.
Fast & Tracked Delivery
Once approved, your prescription will be processed by our UK-based pharmacy and shipped directly to your door via tracked courier.
What is Mounjaro?
Mounjaro is the brand name for tirzepatide, a prescription medication approved for weight management (including weight loss and maintenance) and type 2 diabetes. Launched in February 2024, it is currently one of the most advanced and effective treatments for sustainable weight loss.
Tirzepatide works by mimicking two of the body’s natural incretin hormones—GLP-1 and GIP—which are released after eating. These hormones help regulate appetite, increase the feeling of fullness, and stabilise blood glucose levels. Mounjaro is the first treatment of its kind to target both hunger and blood sugar in a dual-action approach.
Mounjaro may be prescribed for weight loss in adults with:
- A BMI of 30 or higher, or
- A BMI of 27–30 along with at least one weight-related health condition, such as:
- Obstructive sleep apnoea
- Osteoarthritis
- Type 2 diabetes
- High blood pressure
- High cholesterol
In addition to blood sugar control, clinical trials of Mounjaro have shown significant weight reduction. Compared to other GLP-1-based weight loss medications, it consistently delivers the most promising outcomes.
In addition to stabilising blood glucose levels, clinical studies have shown that Mounjaro also leads to significant weight loss in patients. Compared to other GLP-1-based weight loss medications, Mounjaro consistently delivers superior results, making it a leading option in modern weight management therapy.
While tirzepatide may be prescribed off-label for specific individuals, this is only done when clinically appropriate and at the discretion of the prescriber, especially when it’s believed to offer real benefits to the patient’s long-term health outcomes.
Mounjaro Summary
| Dose | Weekly one injection |
|---|---|
| Active pharmaceutical ingredient | Tirzepatide |
| Drug family | GLP-1 and GIP receptors agonist |
| How does Mounjaro work? | Mimics hormones that help control appetite and make you feel full |
| Effectiveness | 15–20% average weight loss in most patients |
| Price | From £39.75 per week |
How Much Does Mounjaro Cost?
Mounjaro prices start at £122.00 for a one-month supply when you order from Mounjaro Injection Weight Loss. This cost includes a free online consultation with one of our licensed UK healthcare providers. That’s why Mounjaro Injection Weight Loss is one of the most affordable and convenient options for buying Mounjaro online in the UK. Each pack contains four once-weekly injections. Get the best value for Mounjaro today.
Mounjaro Price
The price of Mounjaro varies depending on the dosage and duration of your treatment.
2.5 mg Mounjaro (Starting Dose)
The initial dose is 2.5 mg, priced at £139.00 for a 4-week pack. This helps your body gradually adjust to the medication and is taken from Week 1 to Week 4.
5 mg Mounjaro (Continuation Dose)
Following the starter dose, the first step up is 5 mg, also priced at £155.00 for a 4-week pack. This dose is usually taken from Week 5 to Week 8 of your treatment.
7.5 mg Mounjaro (Continuation Dose)
The next progression is 7.5 mg, which costs £206.00 for a 4-week supply. It is generally used between Week 9 and Week 12 of your weight loss journey.
10 mg Mounjaro (Continuation Dose)
The third step-up dose is 10 mg, available at £230.00 for a 4-week pack. This dose is typically used from Week 13 to Week 16 as your body progresses through the treatment.
12 mg Mounjaro (Continuation Dose)
Next in the titration is 12 mg, priced at £247.00 for 4 weeks. It is generally prescribed from Week 17 to Week 20, once your body is well adjusted to the earlier doses.
15 mg Mounjaro (Maintenance Dose)
The final and ongoing maintenance dose is 15 mg, costing £267.00 for 4 weeks. This dose is used from Week 21 onwards and is continued for the remainder of your weight loss treatment, once full tolerance is established.
Fill out the free online consultation form and begin your personalised weight loss journey today!
Start ConsultationHow to use the Mounjaro Pen (KwikPen) for Weight Loss
Watch this easy-to-follow video tutorial for step-by-step guidance on using your Mounjaro Pen correctly. The video provides full instructions on how to administer the Mounjaro (tirzepatide) injection safely and effectively.
Still have questions? Radclyffe House, Hagley Rd, Birmingham B16 8PF or call 0333 0124 065
Where Can I Buy Mounjaro in the UK?
You can order Mounjaro online through Mounjaro Injection Weight Loss. Once you complete the free online consultation and your form is reviewed by our healthcare professionals, we’ll deliver the medication directly to your door via tracked UK shipping.
How Is Mounjaro Taken?
Mounjaro is a once-weekly injection that contains the active ingredient tirzepatide. Each pack includes one pre-filled pen, with 4 doses per pen. Available dose strengths include:
2.5 mg, 5 mg, 7.5 mg, 10 mg, 12.5 mg, and 15 mg.
You can take Mounjaro at any time of the day, with or without food. However, it’s best to use it on the same day every week for consistent results.
To minimise potential side effects while your body adjusts, treatment begins with the lowest dose (2.5 mg) for the first 4 weeks. Over time, the dosage increases gradually to a maximum of 15 mg weekly.
If your body is showing clear signs that it can tolerate Mounjaro, then the dosing schedule will be as follows:
- Weeks 1-4: 2.5 mg weekly
- Weeks 5-8: 5.0 mg weekly
- Weeks 9-12: 7.5 mg weekly
- Weeks 13-16: 10.0 mg weekly
- Weeks 17-20: 12 mg weekly
- Weeks 21 onwards: 15.0 mg weekly
How to inject Mounjaro?
Mounjaro is administered as a subcutaneous injection, meaning it’s injected just under the skin.
You can inject it into the stomach area (abdomen)—at least two inches away from the belly button—or into the upper thigh.To reduce the risk of irritation or infection, it’s recommended to rotate the injection site each week. You can download and read the Patient Information Leaflet (PIL) for each dosage here:
Patient information leaflet
For full step-by-step guidance, download the official instructions:
Click here to download the instructions for use on how to inject Mounjaro KwikPen
What are the side effects?
Like all medications, Mounjaro (tirzepatide) may cause side effects. However, not everyone will experience them, and the severity can vary from person to person.
Commonly reported side effects of Mounjaro include:
- Diarrhoea
- Feeling sick (nausea)
- Being sick (vomiting)
- Constipation
- Indigestion
- Decrease in appetite
- Stomach (abdominal) pain
As your body adjusts to the medication, these side effects often become less noticeable or resolve entirely over time.
For a complete list of potential side effects and safety details, please refer to the Patient Information Leaflet (PIL) provided with your prescription.
Be sure to read it thoroughly so you're fully informed before beginning treatment.
Who Can Use Mounjaro?
The weekly weight loss injection, Mounjaro, is intended for adults with a BMI of 30 or above, or a BMI between 27–30 if accompanied by a weight-related health condition.
After completing your online consultation, a UK-registered prescriber will assess your eligibility based on your BMI, medical history, and any current medications.
Mounjaro is not suitable and will not be prescribed to you if you fall into any of the following categories.
- Below 18 years of age.
- You are pregnant, actively trying to get pregnant, or breastfeeding.
- Anyone who has severe kidney or liver problems.
- Type 1 diabetic patients or you are taking diabetic medication that may cause hypoglycemia, such as insulin or sulphonylureas (e.g., Gliclazide).
- You have eating disorders or have had them in the past.
- Are currently taking other weight loss drugs or medication that contain GLP-1 or work in the same way as Mounjaro, e.g., Byetta, Victoza, Ozempic, Saxenda, Trulicity, Wegovy.
- You suffer from slow digestion, severe gastroparesis, or other food digestion-related problems.
- You’ve had pancreatitis (inflammation of the pancreas that may cause severe pain in the stomach and back that does not go away).
- You have diabetic retinopathy, macular edema, or other eye problems.
- You or anyone in your family have had thyroid cancer called medullary thyroid carcinoma (MTC).
- You are suffering from Multiple Endocrine Neoplasia syndrome type 2 (MEN 2).
- You are allergic to tirzepatide or any ingredients in Mounjaro
What our customers say
We take pride in offering exceptional service. Here’s what some of our happy customers have shared
Michelle
Very easy and quick consultation process. Weight loss pens arrived the next day.
MICHELLE
The consultation process was quick and easy. My weight loss pens were delivered the very next day.
MARY
The customer service team was incredibly helpful—professional, responsive, and friendly throughout.
FAQs
What’s the difference between Mounjaro and Zepbound?
- Zepbound is the name used in the United States
- Mounjaro is the name licensed in the United Kingdom
Please note that Zepbound is not approved for use in the UK.
Can I switch from Wegovy to Mounjaro?
Yes, switching is possible, but it must be done under medical guidance. If Wegovy is not effective or well-tolerated, follow these transition guidelines:
- If you're taking up to 1 mg of Wegovy, stop for 2 weeks before starting Mounjaro.
- If you're on a dose higher than 1 mg, stop for 4 weeks before switching.
You should not take both medications at the same time, as they work in similar ways and may cause serious side effects if combined.
How long do Mounjaro side effects last?
Common side effects such as nausea, vomiting, headache, abdominal discomfort, and low blood sugar typically occur during the initial adjustment period.
Most people notice these symptoms improve within four weeks, but this may vary from person to person.
Can Mounjaro cause hair loss?
Refer to the leaflet for full details and contact a healthcare provider if you experience any unexpected effects.
How to get a Mounjaro prescription online?
If approved, your prescription will be issued and shipped discreetly to your doorstep.
Are Mounjaro and Ozempic the Same?
No, they are different medications:
- Mounjaro contains tirzepatide
- Ozempic contains semaglutide
OBoth are used for type 2 diabetes and weight loss, and both are GLP-1 receptor agonists. However, Mounjaro also activates GIP receptors, providing dual-action benefits for appetite and blood sugar control.
Are Mounjaro and Wegovy the Same?
No. While both are approved for weight loss, they differ in composition and manufacturer:
- Mounjaro is made by Eli Lilly and contains tirzepatide
- Wegovy is made by Novo Nordisk and contains semaglutide
Both help regulate appetite and calorie intake, but Mounjaro offers dual action by mimicking both GLP-1 and GIP hormones, making it effective for both weight management and blood sugar support.
Reviewed By: Dr. H. Hamid
Dr. H. Hamid is a GMC-registered medical doctor and a globally recognised authority in weight loss and aesthetic medicine. With years of clinical experience and advanced training, he has helped countless patients achieve lasting results through safe, evidence-based treatments tailored to their individual needs.
Last reviewed on: 05/08/2025Start free Consultation
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