Additional information
| Strength | HIGHEST DOSE 15MG, STARTING DOSE 2.5MG, STEP UP DOSE 10MG, STEP UP DOSE 12.5MG, STEP UP DOSE 5MG, STEP UP DOSE 7.5MG |
|---|---|
| Quantity | 1 PEN (4 DOSES), 2 PENS (8 DOSES), 3 PENS (12 DOSES) |
Mounjaro Weight Loss Injection
Mounjaro UK
Mounjaro is a weekly self injectable pen used for weight loss. It contains tirzepatide, which works by regulating blood sugar and energy balance levels to help reduce appetite and prevent cravings.
Price range: £149.99 through £899.97
Mounjaro Weight Loss Injection
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Description
Cheapest Mounjaro UK – Prices & Options
Be sure to check out our seasonal delivery schedule.
If you are searching for the cheapest Mounjaro UK, it is important to compare both pricing and clinical support. At The Care Pharmacy, we offer competitive pricing across all dose strengths, with treatment prescribed by qualified UK clinicians following a safe and regulated consultation.
Mounjaro (tirzepatide) is a prescription-only weekly injection designed to support weight loss and blood sugar control. You can learn more about how treatments like Mounjaro are assessed and approved by visiting the NICE guidelines website.
When comparing the cheapest Mounjaro UK, it’s important to ensure you are buying from a regulated provider. Read our guide on where to safely buy Mounjaro online in the UK to understand what to look for.
Mounjaro UK Price Comparison
For the ultimate guide click here.
| Dose | 1 Pen (4 Doses) | 2 Pens (8 Doses) | 3 Pens (12 Doses) |
|---|---|---|---|
| 2.5mg | £149.99 | £299.98 | £449.97 |
| 5mg | £184.99 | £369.98 | £554.97 |
| 7.5mg | £234.99 | £469.98 | £704.97 |
| 10mg | £259.99 | £519.98 | £779.97 |
| 12.5mg | £279.99 | £559.98 | £839.97 |
| 15mg | £299.99 | £599.98 | £899.97 |
What is Mounjaro?
Mounjaro is a weekly self-injectable pen used for weight loss and the management of type 2 diabetes. It contains tirzepatide, which works by regulating blood sugar and energy balance levels to help reduce appetite and prevent cravings.
For patients comparing providers, finding the best Mounjaro UK deal option should always be balanced with safety, clinical oversight, and ongoing support. Treatment is only available following a consultation to ensure it is appropriate for your needs.
- Once-weekly injection taken on the same day each week
- Doses increased gradually to minimise side effects
- Results vary depending on lifestyle and adherence
- Ongoing clinical monitoring is essential
- Not suitable for everyone
What is Mounjaro used for?
Mounjaro is prescribed to support both weight management and blood sugar control in adults.
- Supports weight loss in patients with BMI 30+, or 27+ with related conditions
- Helps regulate blood sugar in type 2 diabetes
- Reduces appetite and improves portion control
Many patients searching for the cheapest Mounjaro UK are looking for a long-term solution rather than a quick fix. When combined with diet and exercise, Mounjaro can support sustainable weight loss and improved metabolic health.
How do Mounjaro injections work?
Mounjaro mimics two key hormones, GLP-1 and GIP, which regulate appetite and blood sugar.
- Triggers insulin release when needed
- Reduces sugar production in the liver
- Slows digestion to help you feel fuller for longer
This dual mechanism makes it one of the most effective prescription weight loss treatments currently available in the UK. If you are considering treatment, you can also read our guide on how long Mounjaro takes to work to understand what results to expect.
How Much Weight Can I Lose on Mounjaro?
Results vary from person to person, but clinical trials have shown that patients taking Mounjaro (tirzepatide) at the highest dose lost between 15% and 22.5% of their body weight over 72 weeks when combined with diet and exercise. Even at lower doses, significant weight loss has been observed across multiple studies.
Use the calculator below to get a personalised estimate based on your current weight and treatment plan. This can help you set realistic expectations before starting your Mounjaro journey with The Care Pharmacy.
Side Effects
Mounjaro weight loss injections may cause serious side effects, including:
- Pancreatitis (Inflammation of the pancreas): Stop using Mounjaro and contact your healthcare provider immediately if you experience severe pain in your stomach area that doesn’t go away, with or without vomiting. The pain may also spread to your back.
- Low blood sugar (Hypoglycaemia): Your risk may increase if you use Mounjaro with medications like insulin or sulfonylureas. Signs include dizziness, sweating, confusion, drowsiness, blurred vision, slurred speech, shakiness, rapid heartbeat, mood changes, and hunger.
- Serious allergic reactions: Stop using Mounjaro and seek urgent care if you experience swelling of the face, lips, tongue, or throat, difficulty breathing or swallowing, severe rash or itching, fainting, or a very rapid heartbeat.
- Kidney problems (Kidney failure): If you have existing kidney issues, vomiting and diarrhoea may lead to dehydration, worsening your condition. Stay hydrated to reduce the risk.
- Severe stomach problems: Some users report serious stomach issues. Inform your healthcare provider if symptoms are severe or persistent.
- Vision changes: Report any vision changes while using Mounjaro to your healthcare provider.
- Gallbladder problems: Symptoms may include pain in the upper abdomen, fever, jaundice (yellowing of the skin or eyes), or pale stools. Contact your doctor immediately if you notice these signs.
Common Side Effects
The most common side effects of Mounjaro include:
- Nausea
- Diarrhoea
- Reduced appetite
- Vomiting
- Constipation
- Indigestion
- Abdominal pain
This is not a full list of side effects. Speak to your healthcare provider if any side effects bother you or do not go away.
Storage
How Should Mounjaro Be Stored?
To keep your injections safe and effective:
- Store pens in the fridge between 2°C and 8°C
- Can be kept at room temperature (up to 30°C) for a maximum of 21 days
- Protect from light and never freeze
- Keep out of sight and reach of children
Always check the expiry date before use.
Warnings
Who Should Avoid Mounjaro?
Mounjaro weight loss injections may increase the risk of developing thyroid tumours, including thyroid cancer. Although this risk has been identified in animal studies, it is still taken seriously as an important safety warning for patients. You should be aware of symptoms that could indicate a thyroid problem, such as a lump or swelling in your neck, a hoarse voice that does not improve, difficulty swallowing, or shortness of breath. If you notice any of these signs, contact your healthcare provider straight away for urgent advice.
Do not use Mounjaro if you or a family member have ever had a type of thyroid cancer called medullary thyroid carcinoma (MTC). You should also avoid Mounjaro if you have Multiple Endocrine Neoplasia syndrome type 2 (MEN 2). In addition, Mounjaro must not be used if you are allergic to tirzepatide or any of the other ingredients in the injection, as this could cause a serious allergic reaction.
It is important to understand that Mounjaro is not suitable for everyone, and it must only be used following a full clinical assessment. This is because certain health conditions, medications, and risk factors can make treatment unsafe or increase the likelihood of side effects. Always provide accurate medical information during your consultation so the prescribing clinician can make the safest decision for you.
To summarise, not everyone can take Mounjaro. Avoid this treatment if:
- You have been diagnosed with type 1 diabetes
- You are pregnant, trying to become pregnant, or breastfeeding
- You have severe digestive conditions, including gastroparesis (delayed stomach emptying)
- You have an allergy to tirzepatide or any ingredient listed in the medication
- You are under 18
You should also speak to a healthcare professional before starting Mounjaro if you have any of the following, as extra caution or monitoring may be needed:
- A history of pancreatitis
- Gallbladder problems, including gallstones
- Significant kidney disease or dehydration risk (especially if you are prone to vomiting)
- Liver problems
- Diabetic eye disease (diabetic retinopathy), particularly if your blood sugars may change quickly
- A history of severe allergic reactions to injectable medicines
- You take other diabetes medications, especially insulin or sulfonylureas, as your risk of low blood sugar may be higher
As with any prescription weight loss treatment, ongoing monitoring is important. If you experience severe stomach pain, persistent vomiting, signs of dehydration, or any worrying symptoms while using Mounjaro, seek medical advice promptly.
Always check with a healthcare professional before starting treatment to ensure Mounjaro is safe and appropriate for your health needs.
Directions
We only stock Mounjaro in a multi-dose pen. This means each pen contains four doses of the same strength. Be sure to follow your doctor’s instructions and the patient information leaflet that comes with your pen.
You should only inject Mounjaro (Tirzepatide) into the skin of your stomach or upper thighs, avoiding veins and muscles. If your upper arms have enough fat, you can inject there, but it’s best to have someone help you.
Use a new needle for each injection. Have a sharps bin nearby so you can safely dispose of the needle after you’re done.
Always check your pen and needle for any damage, and don’t use them if they’re unsealed or bent. Also, inspect the liquid – if it’s not clear and colourless or slightly yellowish, you may need to use a new pen.
Before taking your dose, double-check that you have the correct medication and dose according to the Mounjaro dosing schedule. This is particularly important if you also take other injectable medications like insulin.
Mounjaro Dosage Schedule
Ingredients
Mounjaro contains tirzepatide as its active ingredient. Tirzepatide is a dual-action GLP-1 and GIP receptor agonist that helps regulate blood sugar levels and appetite, supporting effective weight loss and type 2 diabetes management.
In addition to the active ingredient, Mounjaro includes the following inactive ingredients to help stabilise the solution and maintain safety and effectiveness:
- Metacresol
- Sodium chloride
- Sodium phosphate
- Hydrochloric acid and/or sodium hydroxide (to adjust pH)
- Water for injections
Mounjaro does not contain preservatives, gluten, or lactose. If you have known allergies to any of these ingredients, please speak with your healthcare provider before starting treatment.
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