boolean

Mounjaro Injection

Medication Features

  • Once-weekly weight loss injection
  • Clinically proven weight loss medication
  • Approved for weight loss
  • Produced by Eli Lilly
  • Active ingredient: Tirzepatide

Mounjaro is a prescription-only weight loss injection in the UK, supplied as a pen containing 4 doses. It is prescribed to support weight management in adults where excess weight may affect long-term health. Mounjaro works by reducing appetite and helping you feel fuller between meals. It is fully licensed and approved for weight loss in the UK. Treatment begins only after a medical assessment confirms suitability. It works alongside lifestyle changes rather than replacing them and is intended for steady, clinically supervised progress rather than rapid results. Simply fill in a free consultation form. Our clinical team will review your details and prescribe a suitable treatment. Home delivery is discreet, and essential supplies such as needles or sharps bins can be arranged during the assessment process if needed.

Prices include prescription

2.5 mg The starting dose of Mounjaro is 2.5 mg, which costs £189.00 for 4 weeks. This dose helps your body to adjust to the medication. It is taken from week 1 to week 4 as your starting dose. £189.00
5 mg After the starting dose, the first continuation dose of Mounjaro is 5 mg, which costs £230.00 for 4 weeks. It is taken from week 5 to week 8 of starting the weight loss shot. £230.00
7.5 mg The second continuation dose of Mounjaro is 7.5 mg, which costs £306.00 for 4 weeks. It is preferably taken from week 9 to week 12 of your weight loss journey. £306.00
10 mg The third continuation dose of Mounjaro is 10 mg, which costs £330.00 for 4 weeks. It is prescribed from week 13 to week 16 of your weight loss journey. £330.00
12.5 mg The fourth continuation dose of Mounjaro is 12.5 mg, which costs £347.00 for 4 weeks. It is prescribed from week 17 to week 20 when the body has adjusted to the weight loss shot. £347.00
15 mg The maintenance dose of Mounjaro is 15 mg, which costs £367.00 for 4 weeks. It is prescribed from week 21 onwards when your body has completely adjusted to the weight loss shot. This dose will continue for the remaining duration of your treatment. £367.00

Start the consultation to proceed:

You will be able to select a suitable treatment after you have completed the consultation form.

Mounjaro (Tirzepatide) Weekly Injection

Where Can I Buy Mounjaro in the UK?

You can buy Mounjaro (Tirzepatide) online from Mayfair Weight Loss Clinic with next day UK delivery. The price is not yet known, but it will include free consultation by our healthcare professionals. If your consultation is approved, a prescription will be generated and delivered to you by tracked delivery.

How Is Mounjaro Taken?

Mounjaro is a once-weekly weight loss injection. Each pack of Mounjaro contains 4 single-use pens. Each pen contains one dose of Mounjaro either 2.5 mg, 5 mg, 7.5 mg, 10 mg, 12.5 mg, or 15 mg.

You can use your pen at any time of the day, with or without meals. You should use it on the same day each week if you can.

In order to adjust to the medication, you will start by taking the lowest dose (2.5 mg for 4 weeks then working your way up to 15 mg. Therefore, if you tolerate each dose of treatment 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: 12.5 mg weekly
  • Weeks 21 onwards: 15.0 mg weekly

How to inject Mounjaro?

Mounjaro is injected under the skin (subcutaneous injection) of your stomach area (abdomen) or upper leg (thigh). It is recommended that you use a different site of injection each week to reduce the chances of injection site infections.

You can watch the video on how to use the Mounjaro pen by clicking here.

You can download and read the patient information leaflets (PIL) for each dose of Mounjaro here: Patient information leaflet

What are the side effects?

Like all medications, Mounjaro/Tirzepatidecan have side effects, although you may not experience them for yourself.

The most common side effects of this medication include:

Feeling sick (nausea)

Diarrhoea

Decrease in appetite

Being sick (vomiting)

Constipation

Indigestion

Stomach (abdominal) pain

However, you will usually find that these side effects ease off as your treatment continues and your body gets used to your new medication.

A full list of side effects and more information can be found on the patient information leaflet. Do ensure that you have read all the information and are fully aware of the potential side effects by clicking here (patient information leaflet)

What our customers say

We pride ourselves on great customer service. Here are some comments left by our customers.

Very easy and quick consultation process. Weight loss pens arrived the next day.
Michelle
Friendly customer service team, responded promptly and professionally to my questions.
Mary
Ordered on Tuesday and it arrived on Wednesday morning. Very well packed. Excellent service.
Amy

  • Ongoing review and support from a UK-licensed clinical team
  • Online consultations designed to fit around your schedule
  • Guidance on nutrition alongside medication use
  • Discreet delivery to your home
  • Clear pricing with no unexpected costs
  • Needles provided at no charge, with sharps bins available if required
No, Mounjaro and Wegovy are separate medications produced by different manufacturers and contain different active ingredients. The Mounjaro tirzepatide injection is made by Eli Lilly and contains tirzepatide, while Wegovy is manufactured by Novo Nordisk and contains semaglutide. Both treatments are approved for weight loss and help promote fullness, which can reduce calorie intake. They are both GLP-1 receptor agonists, but Mounjaro also acts on GIP receptors, providing a dual-hormone effect that supports weight loss and blood glucose control.
No, Mounjaro and Ozempic are different medications. While both are used to manage blood sugar levels in people with type 2 diabetes, they contain different active ingredients. Ozempic contains semaglutide, whereas Mounjaro contains tirzepatide. Both act on GLP-1 receptors, but Mounjaro weight loss injection also works as a GIP mimetic, giving it an additional mechanism of action.
Yes, hair loss is listed as a possible side effect in the patient information leaflet. For full details and context, it’s important to review the patient information leaflet provided with the medication.
People commonly report side effects such as nausea, vomiting, headache, stomach discomfort, and low blood sugar when starting Mounjaro weight loss medication. These effects usually appear during the early phase of treatment, while the body is adjusting to the weight loss injection. As treatment continues, side effects tend to ease as your body becomes more familiar with the medication. For many individuals, this adjustment period lasts around four weeks, although the exact timeframe can vary from person to person.
To order Mounjaro online, complete the free consultation with your medical history. A UK-licensed prescriber will review your information and, if approved, issue a prescription. Your medication will be dispensed by a GPhC-regulated pharmacy and delivered discreetly to your chosen address.
To switch treatments, complete the online consultation form. A UK-licensed prescriber will review your details and advise whether changing medication is appropriate for you.
Several alternatives are available, each with different active ingredients: Wegovy (Semaglutide)
  • Once-weekly injection
  • Supports appetite control through GLP-1
  • Average weight loss: 10–15%
  • Suitable for long-term use
Saxenda (Liraglutide)
  • Daily injection
  • Acts on GLP-1 to reduce appetite
  • Average weight loss: up to 10%
Nevolat (Liraglutide)
  • Weekly injection
  • Gradually increased to a 3.0mg maintenance dose
  • Average weight loss: up to 8% over 56 weeks
Results vary by individual. Always consult a UK-licensed prescriber before starting treatment.
Mounjaro is considered safe for eligible patients when prescribed appropriately. Like all medications, it can cause side effects, but it has undergone extensive testing and is approved for use in the UK. Clinical trials have shown positive outcomes for many patients.
Mounjaro begins working soon after injection, but noticeable effects such as reduced appetite and increased fullness usually appear within 4 to 8 weeks. Temporary side effects like nausea may occur while your body adjusts, especially early in treatment.
Clinical trials show average weight loss of 15–20% over 72 weeks. Participants using the 5mg dose lost around 16.1kg, those on 10mg lost approximately 22.2kg, and those on 15mg lost about 23.6kg. Individual results vary.
For optimal results, focus on balanced meals that include protein, complex carbohydrates, and plenty of fruits and vegetables. During the early stages of treatment, avoiding high-fat and high-sugar foods can help reduce side effects. Many people find lighter, bland foods easier to tolerate at first.
Mounjaro for weight loss is available in the UK through Mayfair Weight Loss Clinic, a regulated and licensed healthcare provider. Although it is not widely available through the NHS, you can access treatment through our online consultation service. Our UK-licensed clinical team assess your medical history and weight to confirm suitability before prescribing.
No. Mounjaro is not recommended during breastfeeding, as it is unclear whether the medication passes into breast milk.
Do not use Mounjaro if you are planning to become pregnant. It is recommended to wait at least one month after your final dose before trying to conceive.
If you are of childbearing age, contraception is recommended while using weight loss shots Mounjaro. The medication may reduce the effectiveness of the oral contraceptive pill, so a barrier method or non-oral contraception, such as an implant or IUD, should be used.

Start free Consultation

Speak with our clinical team and get personalised advice.

Start Consultation

Can We Help?

Contact Us Now

Lowest Price Promise: If you find this treatment cheaper elsewhere, we will refund you the difference.

Start Consultation