-
Mounjaro
£340.71 – £667.73Rated 0 out of 5Select options This product has multiple variants. The options may be chosen on the product page
Mounjaro
- Once-weekly injection
- Active ingredient: Tirzepatide
- Trials show ~20% body weight loss
- Available alternative: Wegovy
- Manufactured by Eli Lilly
Combine it with regular physical activity and a well-maintained diet for best results.
Mounjaro is a weekly self-injectable weight loss medication containing the active ingredient tirzepatide. Each pack of Mounjaro comes in four weekly doses when ordered online at Mayfair Weight Loss Clinic. Tirzepatide regulates blood sugar levels and reduces appetite, triggering weight loss. Approved by the MHRA for weight management and type 2 diabetes, Mounjaro KwikPen (tirzepatide) has achieved unprecedented weight loss results in its clinical trials.
Buy Mounjaro Weight Loss Injection In the UK
Mounjaro is a new once-weekly Weight Loss Injection that helps with weight loss by reducing hunger and regulating blood glucose levels. It is injected weekly under the skin (subcutaneous injection). You can buy Mounjaro Weight Loss Injection online from our UK-registered Mayfair Weight Loss Clinic.
The active ingredient in Mounjaro is tirzepatide, which is prescribed for adults with obesity. It mimics hormones of your body’s GLP-1 and GIP that reduce hunger and regulate blood glucose levels in your body.
It is important to note that it is a prescription-only weight-loss medication. You will be able to buy Mounjaro after completing a short online consultation, which will be reviewed by our UK-registered doctors.
If approved, a prescription will be passed on to our pharmacy team for dispensing and delivery of the medication to your doorstep. Our doctors will prescribe you an alternative medication if Mounjaro does not suit your body.
Fill out the Free Consultation Form
Fill out the free consultation form online about your health and existing conditions.
Select Treatment
Select a treatment that you are eligible for according to your consultation. We will give you the options based on the consultation completed.
Fast and Tracked Delivery
We will issue your prescription, dispense the medication from our UK-based pharmacy, and deliver it to your doorstep by tracked courier service.




What is Mounjaro?
Mounjaro, the brand name for Tirzepatide, is a breakthrough medication approved for both weight management (including weight loss and maintenance) and Type 2 diabetes. Launched in February 2024, it is considered one of the most advanced and effective weight loss treatments available.
This innovative medication mimics the effects of two natural incretin hormones—GLP-1 and GIP—making it the first treatment of its kind. These hormones, released after eating, help regulate appetite, promote satiety (the feeling of fullness), and manage blood sugar levels. Mounjaro uniquely addresses all three key factors: hunger, fullness, and blood glucose control.
Who Can Use Mounjaro for Weight Loss?
Mounjaro may be prescribed for individuals with:
- A BMI of 30 or above, or
- A BMI between 27 and 30, if accompanied by a weight-related condition, such as:
- Obstructive sleep apnea
- Osteoarthritis
- Type 2 diabetes
- High blood pressure
- High cholesterol
Why Mounjaro Stands Out
Clinical trials show that Mounjaro delivers significant weight loss results, outperforming many other GLP-1-based medications. It offers a dual-action mechanism by targeting both GLP-1 and GIP receptors, enhancing its effectiveness in reducing weight and controlling blood sugar levels.
While Tirzepatide can sometimes be prescribed off-label for weight management, this is typically considered a secondary option. Such decisions are made carefully by prescribers who evaluate the potential benefits for each individual patient.
Mounjaro Summary
Weekly one injection
Tirzepatide
GLP-1 and GIP receptors agonist
Mimics a naturally occurring hormone that makes you feel fuller.
15 – 20% loss in average patient
How Is Mounjaro Administered?
Mounjaro, containing the active ingredient Tirzepatide, is a once-weekly injectable medication. Each pack includes one pre-filled pen, available in various doses: 2.5 mg, 5 mg, 7.5 mg, 10 mg, 12.5 mg, and 15 mg.
You can administer Mounjaro at any time of the day, with or without meals. It’s advisable to stick to the same day each week to maintain consistency.
Dosage and Schedule
To minimize potential side effects and allow your body to adjust, treatment begins with the lowest dose (2.5 mg) for the first four weeks, gradually increasing to the maximum dose (15 mg) over time:
- Weeks 1–4: 2.5 mg once weekly
- Weeks 5–8: 5 mg once weekly
- Weeks 9–12: 7.5 mg once weekly
- Weeks 13–16: 10 mg once weekly
- Weeks 17–20: 12.5 mg once weekly
- Week 21 onwards: 15 mg once weekly
How to Inject Mounjaro
Mounjaro is injected subcutaneously (under the skin) in the abdomen, at least two inches away from the navel, or in the thigh. To reduce the risk of injection site irritation, rotate the injection site each week.

What Are the Side Effects of Mounjaro?
As with any medication, Mounjaro may cause side effects, although the intensity and occurrence vary by individual. Commonly reported side effects include:
- Diarrhea
- Nausea
- Vomiting
- Constipation
- Indigestion
- Decreased appetite
- Abdominal pain
Most side effects are temporary and tend to subside as your body adjusts to the treatment. If you experience persistent or severe side effects, consult your healthcare provider.
For a full list of potential side effects, refer to the patient information leaflet.
Who Is Eligible to Use Mounjaro?
Mounjaro is suitable for individuals with:
- A BMI over 30, or
- A BMI between 27 and 30 with at least one weight-related condition, such as:
- Obstructive sleep apnea
- Type 2 diabetes
- High cholesterol
- High blood pressure
- Osteoarthritis
Eligibility is assessed during an online consultation based on your BMI, medical history, and current medications.
Who Should Not Use Mounjaro?
Mounjaro is not suitable for:
- Individuals under 18 years of age
- Pregnant, breastfeeding, or actively trying to conceive
- Those with severe liver or kidney issues
- Type 1 diabetics or those on hypoglycemia-inducing medications like insulin or sulphonylureas
- Individuals with current or past eating disorders
- Those already taking GLP-1-based medications like Ozempic, Saxenda, Wegovy, Victoza, or Trulicity
- Patients with severe digestive issues, including gastroparesis
- Individuals with a history of pancreatitis or eye conditions like diabetic retinopathy or macular edema
- Those with a family or personal history of medullary thyroid carcinoma (MTC) or Multiple Endocrine Neoplasia syndrome type 2 (MEN 2)
- Anyone allergic to Mounjaro or its ingredients