Mounjaro

Prescription-only medicine · Weight loss · UK online pharmacy

Mounjaro is an innovative weight loss medication clinically proven to assist in achieving sustainable weight loss. Manufactured by Eli Lilly, this injectable treatment contains Tirzepatide as its active ingredient and is supplied in pre-filled pens for weekly doses.

Key facts

• Classification: Prescription-only medicine (POM) in the UK
• Treatment category: Weight loss
• Price (if prescribed): from £142.70
• Typical supply: 28 days
• Availability: Available following an online consultation
• Prescriber review: every order is assessed by a GPhC-registered pharmacist

Mounjaro prices by dose and pack size

Prices correct as of 2026-08-21. The exact dose is confirmed during the clinical assessment.

Mounjaro: The Advanced Weight Loss Solution

What is Mounjaro?

Mounjaro is an innovative weight loss medication clinically proven to assist in achieving sustainable weight loss. Manufactured by Eli Lilly, this injectable treatment contains Tirzepatide as its active ingredient and is supplied in pre-filled pens for weekly doses.

Originally approved for managing type 2 diabetes, Mounjaro is now licensed for treating obesity and weight-related health conditions. By reducing appetite and slowing digestion, it promotes gradual and healthy weight loss when combined with a calorie-controlled diet and regular physical activity.

How Does Mounjaro Work?

Mounjaro works by targeting two hormones, GLP-1 and GIP, which play critical roles in appetite regulation and energy balance.

• GLP-1 receptor activation slows digestion and reduces hunger, leading to fewer calorie intakes.
• GIP receptor activation enhances energy expenditure and further curbs appetite.

This dual-action mechanism makes Mounjaro more effective than treatments targeting only one of these hormones. Clinical studies have demonstrated superior weight loss results compared to similar medications.

Who Can Use Mounjaro?

Mounjaro is prescribed for:

• Adults with a BMI of 30+ (obesity).
• Adults with a BMI of 27+ and at least one weight-related condition such as:
  • Type 2 diabetes.
  • Hypertension (high blood pressure).
  • High cholesterol or heart disease.
  • Sleep apnoea.
  • PCOS (Polycystic Ovary Syndrome).
  • Chronic joint or back pain.
  • Fatty liver disease.

Mounjaro is also approved for type 2 diabetes management but is available from Medihealth Direct specifically for weight loss.

Who Should Not Use Mounjaro?

Avoid using Mounjaro if:

• You are pregnant, planning pregnancy, or breastfeeding.
• You have a personal or family history of medullary thyroid carcinoma (MTC) or Multiple Endocrine Neoplasia syndrome type 2 (MEN 2).
• You are allergic to any ingredient in the medication.

Consult your healthcare professional if you have:

• Pancreatic, liver, or kidney problems.
• Severe digestive issues.
• A history of diabetic retinopathy or gallbladder disease.

How to Use Mounjaro?

Mounjaro is administered as a weekly injection using pre-filled pens.

1. Select an injection site: Stomach, thighs, or back of the upper arm.
2. Inspect the pen: Ensure the solution is clear or slightly yellow.
3. Prime the pen: Remove air from the pen by following the instructions provided.
4. Inject the dose: Turn the dose knob to the correct setting and inject into the chosen site.
5. Dispose of the needle: Place it in a sharps container and store the pen appropriately.

Recommended Dosage Schedule

Mounjaro starts with a 2.5mg dose once weekly for four weeks. The dose is gradually increased over time to improve tolerance and efficacy, with a maximum dose of 15mg.

Missed a Dose?

If you miss a dose:

• Take it within 4 days of the missed dose.
• If more than 4 days have passed, skip the missed dose and resume your regular schedule.
• Do not take two doses within three days.

Expected Weight Loss with Mounjaro

Clinical studies reveal that Mounjaro achieves significant weight loss:

• Up to 20% reduction in body weight over 72 weeks.
• Higher success rates compared to placebo or other weight loss injections.

Potential Side Effects

Common side effects:

• Nausea, vomiting, or diarrhoea (often temporary).
• Reduced appetite.
• Constipation or indigestion.

Rare but serious side effects:

• Pancreatitis.
• Severe allergic reactions.
• Vision changes.

If you experience severe or persistent symptoms, contact your healthcare professional immediately.

Storage Instructions

• Unused pens: Store in the refrigerator (2°C to 8°C). Do not freeze.
• Used pens: Store at room temperature (up to 30°C) for up to 30 days.
• Disposal: Dispose of pens after four weekly doses.

Comparing Mounjaro with Alternatives

Mounjaro FAQs

How Quickly Will I See Results?

Some weight loss occurs within the first few weeks, but significant results may take several months to a year.

Can I Use Mounjaro While Breastfeeding?

No, this medication is not recommended during pregnancy or breastfeeding.

Do I Need to Diet While Using Mounjaro?

Yes, combine Mounjaro with a calorie-controlled diet and regular exercise for optimal results.

How Can I Buy Mounjaro Online?

At Medihealth Direct, complete a quick online consultation reviewed by a UK-registered healthcare professional. Upon approval, your medication will be delivered discreetly.

How does the online consultation for Mounjaro work?

1. Complete a confidential online health questionnaire.
2. A GPhC-registered pharmacist reviews your answers and confirms whether the treatment is clinically appropriate.
3. If approved, your medication is dispensed by the pharmacy and delivered in discreet packaging by tracked UK delivery.

See how the service works or browse all treatments.