Mounjaro Weight Loss Injections


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Buy Mounjaro Weight Loss Injections UK

You can buy Mounjaro weight loss injections from our UK registered online prescribing service. Mounjaro was launched in the UK in February 2024, and is the newest GLP1 weight loss injection available in the UK. you will be able to order Mounjaro after completing an online assessment with our GP’s. If a prescription is approved, this is passed to our pharmacy team, who prepare and post your treatment.

 Wegovy is from the same family of drug, and is licensed for weight loss use in the UK. It is not yet fully understood on how patients can switch from Wegovy to Mounjaro. The most likely guidelines will be a patient will have to wait for two weeks after their latest Wegovy dose, and start Mounjaro from 2.5mg.

What is Mounjaro?

Mounjaro is a highly effective weight loss treatment, shown in clinical trials to help achieve ~20% body weight loss. It is the latest GLP1 weight loss inection, and is used for people with a body mass index (BMI) over 30.

  • It contains the drug tirzepatide and is a registered trademark of Eli Lilly.
  • It is known as Zepbound in the US, but is launching in the UK under the brand name Mounjaro.
  • It is injected ONCE weekly under the skin.

How does it work?

Mounjaro contains the active ingredient tirzepatide. Tirzepatide is from a class of drugs called GLP-1 agonsts. This is a class of drug which helps regulate hunger and is released by the intestines after a meal. 

Due to being similar to GLP-1, Mounjaro regulates appetite causing you to feel fuller and less hungry. This can lead to eating fewer calories and losing weight. Focussing on eating a reduced-calorie diet will further enhance the benefits of Mounjaro. A full account of how Mounjaro works can be found in our guide.

Why Mounjaro is used?

Mounjaro should only be used to help with weight loss if you have already tried and failed to lose weight through exercise and diet alone. It is not currently available to buy in the UK, however there are other GLP-1 drugs which are availble. These incude Saxenda, Wegovy and Ozempic.

Mounjaro can be used for patients who have a BMI of over 30, or in patients with a BMI over 27, and other risk factors such as;

  • Diabetes type 2
  • High cholesterol
  • Obstructive sleep apnoea
  • High blood pressure

How effective is it?

When using Mounjaro pens to suppress appetite, you can expect to lose a around 15-20% of your initial body weight after completing treatment. This is the most effective of all the released GLP-1 medications so far.

These figures have been achieved by patients who have maintained on the highest strength of Mounjaro, which is the 15mg strength.

Patients who maintain at 10mg, lose on average of 19%, while patients who maintain at 15mg, can lose around 15%.

The lower strengths of Mounjaro 2.5 and 5mg will not achieve best results. While some weight loss will be observed, the primary function of these doses is to help your body adjust to the drug without experiencing serious side effects.


The dosage table below, outlines the recommended titration for Mounjaro when used for weight loss.

Mounjaro Dose Titration Schedule
1-42.5 mg once weeklyInitial dose for titration
5-85 mg once weeklyAssess tolerance before increase
9-127.5 mg once weeklyAssess tolerance before increase
13-1610 mg once weeklyMonitor for efficacy and tolerability
17-2012.5 mg once weeklyFurther increase based on clinical response
21 onwards15 mg once weeklyMaintenance dose if well tolerated


The preferred and safest method of losing weight is via a healthy diet and increased physical exercise.

The NHS offers a 12-week weight loss plan for patients. Further information from the NHS is available for exercise and diets. Is it expected that Mounjaro weight loss injections will be available on the NHS, for certain patients, however this has yet to be confirmed.

Other GLP-1 drugs available in the UK as an alternative to Mounjaro include

For many people, the thought of injecting a treatment is not quite for them. There are more traditional weight loss pills available from our weight loss service, such as Orlistat. This contains 120mg of the drug, and  works by preventing 1/3rd of the fat from the food you eat from being absorbed.

You can also compare Ozempic and Mounjaro, as well as understand the differences between Wegovy and Mounjaro, by reading our helpful advice guides.


PriceFrom £189 / Month
How it worksSuppresses appetite
Effectiveness15-20% loss in the average patient
Side effectsCommon side effects can include fatigue, dizziness, insomnia
DosageStarting at 2.5mg ONCE weekly.

Titrating up by 2.5mg each month.

Maximum dosage of 15mg ONCE weekly.

Side effects

The most common side effects with Mounjaro weight loss injections affect the digestive system. These can include things like nausea, vomiting, diarrhoea and constipation. Most patients should see these effects subside after a few days.

Other common side effects include:

  • Feeling weak or tired
  • Dizziness
  • Insomnia
  • Injection site reactions such as bruising, pain or a rash

The dosage titration of the drug, is designed to minimise side effects. Strating with Mounjaro 2.5mg, and moving up through 5mg in 2.5mg increments, helps the body adjust to the drugs impact. Doing this gradual titration, will allow you to minimise side effects and get the most out of your treatment.

Mounjaro (tirzepatide) injection

Mounjaro weight loss injections is a prescription medication that is used to improve blood sugar control in adults with type 2 diabetes. It is a once-weekly injection that works by mimicking the effects of two hormones: glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP). GLP-1 helps to control blood sugar levels by increasing insulin production and decreasing glucagon production. GIP helps to increase insulin production and slows down the emptying of the stomach.

Mounjaro is available in six strengths: 0.25 mg, 0.5 mg, 1 mg, 2 mg, 5 mg, and 7.5 mg. The starting dose is 0.25 mg once weekly. The dose can be increased to 0.5 mg, 1 mg, 2 mg, 5 mg, or 7.5 mg once weekly after 4 weeks, if needed.

Mounjaro is generally well-tolerated. The most common side effects are nausea, vomiting, diarrhea, and constipation. These side effects usually go away on their own within a few weeks.

If you are considering taking Mounjaro weight loss injections, talk to your doctor about the risks and benefits. They can help you decide if this medication is right for you.

Risks & Benefits of Mounjaro Weight loss Injections

  • Mounjaro is not a cure for type 2 diabetes. It is a long-term medication that must be taken regularly to maintain blood sugar control.
  • Mounjaro can be used in combination with other diabetes medications, such as metformin or sulfonylureas.
  • Mounjaro can cause serious side effects, such as pancreatitis. If you experience any of these side effects, stop taking Mounjaro and contact your doctor immediately.
  • Mounjaro is not recommended for use in people with a history of pancreatitis or medullary thyroid cancer.
  • The price of Mounjaro weight loss injections can vary depending on the pharmacy and the dosage. You can contact your pharmacy for the most accurate pricing information.
  • You may be eligible for a patient assistance program if you are unable to afford Mounjaro. You can find more information about patient assistance programs on the website of the manufacturer of Mounjaro, Eli Lilly and Company.

Additional information


0.25 mg, 0.5 mg, 1 mg, 2.5 mg, 3 mg, 4.5 mg, 5 mg, 6 mg, 7.5 mg, 10 mg, 12.5 mg, 20 mg


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