Mounjaro

Yes, Mounjaro is safe. Mounjaro has been thoroughly tested through clinical trials and approved by UK regulators, including the Medicines & Healthcare products Regulatory Agency (MHRA).

It's only available on prescription, so your clinician will check it's the right and safe option for you before you start.

The 2.5mg starter dose of Mounjaro costs £148. The price of your treatment then gradually increases as your dose does. You can find out more on our treatment page.

Mounjaro injections are manufactured by Eli Lilly, a pharmaceutical company founded in 1876.

If Mounjaro isn’t right for you, you have a number of other weight loss treatments to explore, including:

• Wegovy injections
• Wegovy pills
• Foundayo tablets
• Saxenda injections

No, you can only buy Mounjaro with a prescription. Simply answer a few questions, and our clinicians can assess whether the treatment is safe and suitable for you.

To be eligible for Mounjaro, you'll likely need a BMI of at least 30 or above or a BMI of 27+ and a weight-related health condition like type 2 diabetes, high cholesterol, or high blood pressure. However, depending on your medical history, you may also be eligible with a BMI of at least 25.

Mounjaro isn't suitable for everyone. Don't take Mounjaro if:

• you're allergic to tirzepatide or any of its other ingredients
• you have a personal or family history of medullary thyroid cancer
• you have a personal history of multiple endocrine neoplasia type 2 (MEN2) pancreatitis, or diabetic retinopathy
• you're pregnant, trying to conceive, or breastfeeding

No, Mounjaro isn't suitable during pregnancy or while breastfeeding. If you're planning to become pregnant, speak to your clinician first, as you'll usually need to stop treatment at least one month before trying to conceive.

If you become pregnant while taking it, stop straight away and speak to your doctor.

Yes, but the criteria are much stricter than with a private service. You'd usually need a BMI of 40 or more (37.5 for some ethnic groups) plus at least four weight-related conditions, and it's only available through specialist services.

Read more in our guide to NHS weight loss injections.

Whatever time and day work best for you. Some people like to tie it in with something they'll remember, like eating breakfast or just before bedtime. What matters most is taking it on the same day each week to ensure you stay consistent and on track.

Of course! If you're experiencing side effects or you think your dose is too strong, speak to your prescriber about lowering it. Many people still achieve meaningful weight loss on lower doses.

If you miss a dose of Mounjaro and it’s:

• Less than four days late: Take it now and carry on as normal.
• More than four days late: Skip it and take your next dose on your usual day.
• More than two weeks late: Speak to your prescriber before continuing.

Never take two doses together to make up for a missed one.

Mounjaro can reduce how well hormonal contraception works (like the pill). Speak to your clinician if you rely on contraception and are thinking about taking Mounjaro, as you may need to use additional protection.

There are several reasons why you might not be losing weight as expected while taking Mounjaro:

• You’re not in a calorie deficit: Mounjaro works by helping control your appetite and making you feel fuller for longer, but weight loss still depends on consistently eating fewer calories than you burn. If you’re not on the right Mounjaro diet plan and your food portions, snacking habits, or overall calorie intake haven’t changed enough, you may not see much progress.
• You’ve hit a weight loss plateau: Plateaus are very common during any weight loss journey. After the initial stages, your body can adapt to its new lower weight and burn fewer calories than before. This can make progress slower, even if you’re sticking to your plan.
• You may need a dose change: Mounjaro is started at a low dose and gradually increased to help your body adjust and reduce side effects. Some people find that they don’t see their best results until they’re on a higher dose.
• You might need an alternative treatment: Everyone responds differently to weight loss medications. If Mounjaro isn’t working as well for you, your clinician may suggest exploring other treatment options.

When you stop Mounjaro, your appetite is likely to return to normal, and some weight regain is common.

Building healthy habits like a balanced diet and regular movement while you're on treatment gives you the best chance of keeping the weight off long-term, whether you stay on treatment or decide to stop.

Yes, when your order arrives, you should put your Mounjaro pen straight in the fridge. This is because the treatment needs to be kept between 2°C-8°C before it’s first used. Once you opened your pen, it can be kept at room temperature for up to 30 days.

Needles must be disposed of in a sharps bin. Once the needle's removed, the pen itself can be recycled. Sharps bins can be collected by your local council once they're full.

You can, but keep your pens in your hand luggage rather than checking them in, since temperatures in the hold can vary.