Mounjaro® (Tirzepatide) Injections

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Treatment Overview

Mounjaro® is a once-weekly self-injection treatment for effective weight management. It contains tirzepatide, a dual-action medication that mimics natural gut hormones to help control appetite and support steady weight loss. Clinical studies have shown patients can lose up to 20% of their body weight with regular use, combined with a healthy diet and exercise.

Key Features

  • Self-administered weekly injection
  • Active ingredient: Tirzepatide
  • Developed by Eli Lilly
  • MHRA-approved for weight management and type 2 diabetes
  • May also consider Wegovy® as an alternative

How Mounjaro® Works

Reduces hunger signals to help you feel full for longer

Slows digestion, reducing overeating and cravings

Improves insulin sensitivity and fat metabolism

Supports consistent, medically guided weight loss

Order Mounjaro® Weight Loss Injections Online in the UK

Mounjaro® is a once-a-week injection designed to support weight loss by helping control appetite and balance blood sugar levels. It works by mimicking natural hormones in your body that regulate hunger. You can easily order it online through our UK-registered clinic. After completing a quick medical consultation, one of our doctors will review your details. If Mounjaro is suitable, your prescription will be issued and the medication delivered directly to your home. If not, we’ll suggest an alternative that better suits you.

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Who Can Use Mounjaro?

You may be eligible for Mounjaro® treatment if:

  • You’re an adult with a BMI of 30+
  • Or have a BMI of 27+ with a weight-related health condition (e.g. PCOS, high blood pressure, pre-diabetes)
  • You’re not currently pregnant or breastfeeding, and have no history of thyroid cancer or pancreatitis
  • Patients who have not achieved results with diet and exercise alone
  • Individuals not diagnosed with medullary thyroid cancer or multiple endocrine neoplasia syndrome type 2

What’s Included

  • 4 pre-filled pens per pack (4 weekly doses)
  • Ongoing support from our expert team
  • UK pharmacy fulfilment, GPhC-regulated
  • Transparent pricing – no hidden fees

Each pack of Mounjaro contains 4x weekly doses

Strength

Pack Size

Price

2.5 mg

4 x 2.5 mg doses

£199.00

5 mg

4 x 5 mg doses

£229.00

7.5 mg

4 x 7.5 mg doses

£289.00

10 mg

4 x 10 mg doses

£299.00

12.5 mg

4 x 12.5 mg doses

£379.00

15 mg

4 x 15 mg doses

£399.00

How to Buy Mounjaro Online

1

Step 1

Complete a quick online consultation – no appointments necessary

2

Step 2

Our clinicians review your form and assess if Mounjaro is suitable

3

Step 3

Approved prescriptions are sent to our UK pharmacy for prompt dispatch

4

Step 4

Receive your medication at home with ongoing clinical support

If Mounjaro isn’t suitable, we’ll recommend an appropriate alternative treatment.

Why Choose Kensington Weight Loss Clinic?

UK-prescribed medication from licensed healthcare professionals

Discreet, pharmacy-approved delivery straight to your door

Simple online process no in-person appointments required

Continuous expert support throughout your treatment journey

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Mounjaro® Dosage Progression

Mounjaro® is taken once weekly through a pre-filled injection pen. Dosages are gradually increased over time to ensure your body adjusts well and to maximise treatment effectiveness.

2.5 mg (Starting Dose)
This is the initial dose used during the first 4 weeks. It helps your body adjust to the treatment gently before higher doses are introduced.

5 mg (First Step-Up Dose)
Following the starting phase, this dose is usually taken during weeks 5–8. It builds upon the initial effects and begins deeper appetite regulation.

7.5 mg (Second Step-Up Dose)
Typically used from week 9–12, this dose supports further metabolic response and continued appetite suppression as the body adapts.

10 mg (Third Step-Up Dose)
Introduced around week 13–16, this level continues the dose titration while enhancing weight loss results.

12.5 mg (Advanced Continuation Dose)
Used from week 17 onward, this dose supports long-term progression, once earlier doses are well tolerated.

15 mg (Maintenance Dose)
This is often the optimal long-term dose for many patients. Taken from week 21 onward, it’s designed to sustain weight loss and support continued appetite control throughout treatment.

How to Use Mounjaro® Safely

Using Mounjaro® is easy. It comes in a ready-to-use, pre-filled injection pen that you administer just once a week. You can inject into one of the following areas:

Abdomen: Avoid the 2-inch area around the belly button
Thigh: Outer thigh is preferred
Upper arm: If someone else is giving the injection

Always rotate the injection site weekly to avoid skin irritation. Do not inject into areas that are swollen, sore, or bruised. After use, dispose of the pen in a yellow sharps bin as instructed.

Side Effects of Mounjaro

Like all medications, Mounjaro (tirzepatide) may cause side effects. Most are mild and improve as your body adjusts to the treatment.

  • Nausea
  • Vomiting
  • Diarrhoea
  • Constipation
  • Reduced appetite
  • Indigestion
  • Fatigue
  • Headache

These effects are often temporary and tend to lessen over time.

Less common but serious side effects

  • Pancreatitis (severe stomach pain that may spread to the back)
  • Gallbladder issues (such as gallstones)
  • Diarrhoea
  • Low blood sugar (especially if taken with other diabetes medication)
  • Allergic reactions (rash, swelling, difficulty breathing)

These effects are often temporary and tend to lessen over time.

If you notice any signs of a severe allergic reaction or experience ongoing or worsening symptoms, stop treatment and seek urgent medical help.

Important: Always follow your clinician’s advice and report any unusual symptoms.

Frequently Asked Question’s

While many people tolerate Mounjaro® well, some may experience side effect especially when starting treatment or increasing the dose.

Common side effects may include:
Nausea or vomiting
Diarrhoea or constipation
Bloating, gas, or acid reflux
Fatigue or dizziness
Mild hair thinning
Low blood pressure or lightheadedness

Less common but more serious effects can include:
Injection site reactions
Rapid heartbeat
Gallstones or gallbladder inflammation
Pancreatitis (inflammation of the pancreas)
Severe allergic reaction (anaphylaxis)

For the best results, Mounjaro should be combined with healthy lifestyle habits. Focus on eating a balanced, portion-controlled diet, staying physically active, getting enough sleep, and managing stress. These changes not only support weight loss but also improve your energy, mood, and long-term health. Think of Mounjaro as one part of a bigger wellness plan—it works best when paired with positive daily routines.

Many people begin to notice reduced appetite within the first few weeks of starting Mounjaro. Visible weight loss typically becomes more noticeable within the first 8 to 12 weeks. However, individual results may vary based on dose, body response, and lifestyle factors such as diet and exercise. Patience and consistency are key for optimal results.

No, Mounjaro and Wegovy are different medications with different active ingredients. Mounjaro, developed by Eli Lilly, contains tirzepatide, while Wegovy, made by Novo Nordisk, uses semaglutide.

Both are GLP-1 receptor agonists used for weight loss, but Mounjaro also mimics GIP (glucose-dependent insulinotropic polypeptide), offering a dual hormone action. This dual mechanism may enhance appetite control and support blood sugar regulation more effectively for some individuals.

Each treatment has its own benefits your clinician will help choose what’s right for you.

While Mounjaro doesn’t directly interact with specific foods or drinks, certain choices may affect how well your body responds. Try to avoid:

Sugary foods and drinks like sweets, fizzy drinks, and pastries
Greasy or fried foods that may increase nausea
High-glycaemic fruits and vegetables such as mango, pineapple, and potatoes
Alcohol, which can worsen side effects like nausea or diarrhoea

Sticking to a balanced, nutrient-rich diet will help you get the most out of your treatment.

No, they are different medications. While both are used to manage type 2 diabetes and support weight loss, they have different active ingredients. Ozempic® contains semaglutide, a GLP-1 receptor agonist, whereas Mounjaro® contains tirzepatide, which acts on both GLP-1 and GIP receptors. This dual-action approach may offer added benefits for appetite control and blood sugar regulation. Your clinician will recommend the most suitable option based on your individual needs.
Ask ChatGPT

Yes, hair thinning or hair loss has been reported by some patients using Mounjaro and is listed as a possible side effect. This is typically temporary and may be related to rapid weight loss or changes in nutrition rather than the medication itself. If you experience ongoing or severe hair loss, it’s important to speak with your healthcare provider for personalised advice.

Before Use:
Keep unopened pens refrigerated at 2°C to 8°C. Do not freeze. They remain usable until the expiry date if stored correctly.

After First Use:
Once opened, pens can be kept at room temperature (up to 30°C) or in the fridge.
Each pen must be discarded 30 days after first use, even if not empty.

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