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Mounjaro

Weight Loss|Active ingredient(s): Tirzepatide|Manufacturer: Lilly

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Price is all-inclusive.
Consultation is included.
Prescription is included.

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UK: Free next-day delivery.
Discreet packaging.

Licensed doctors.
Registered pharmacies.
Certified online pharmacy.

Mounjaro

What is Mounjaro?

Mounjaro is a weight loss injection pen that helps thousands of people lose body fat safely and effectively. Taken once a week, it curbs your appetite and slows stomach emptying, helping you feel fuller for longer. By allowing you to eat less without constant hunger or cravings, Mounjaro makes it easier to stick to your goals while on your weight loss journey.

Mounjaro vs Ozempic: which is better for weight loss?

Both Mounjaro (tirzepatide) and Ozempic (semaglutide) are injectable medications originally designed to manage type 2 diabetes but have gained attention for their strong weight loss benefits. However, while Mounjaro is now approved as a weight loss medication, Ozempic is only approved to treat type 2 diabetes. For a version of semaglutide that’s approved for weight loss, consider Wegovy instead.

Mounjaro

  • Targets two hormones for blood sugar and appetite control
  • Weight loss up to 20% of body weight in studies
  • Newer medication with promising results
  • Potentially higher risk of side effects

Ozempic (Wegovy)

  • Mimics hormone that slows digestion and reduces appetite
  • Weight loss is typically around 15%
  • Well-established with a strong safety record
  • Generally well-tolerated with fewer side effects

How does Mounjaro work?

Mounjaro works by reducing appetite and making it easier to stay within a calorie deficit. Here’s how it works step by step:

Image 1

Activates gut hormones to regulate appetite

Mounjaro stimulates the gut hormones GLP-1 and GIP, which work together to reduce appetite, curb cravings, and increase feelings of fullness after eating.

Image 2

Supports weight loss

By supporting appetite control, Mounjaro helps reduce your food intake and causes weight loss over time.

Image 3

Gradual dose adjustment

Your dose can be gradually adjusted to keep your progress on track and make the treatment even more effective as your body adapts.

Image 4

Long-term support

With the right balance of healthy eating and regular activity, Mounjaro helps you achieve your goals and supports you in maintaining them long-term.

How much weight can I lose?

When combined with a healthy diet and regular exercise, Mounjaro can help you lose up to 20% of your total body weight. However, this number can vary depending on factors like your starting weight, lifestyle, and how well you stick to the treatment plan. Use the tool below to estimate how much weight you could potentially lose with Mounjaro.

Who can use Mounjaro?

Mounjaro is suitable for adults over 18 with:

  • a BMI over 30 or
  • a BMI over 27 with a weight-related health condition

Safety is our top priority at 121doc, and only those who are suitable for treatment will receive it. To see if you could benefit from weight loss treatments, simply fill out a short consultation and our medical team will review your case in no time!

What dose of Mounjaro should I use?

If it’s your first time taking a weight loss injection, your prescribed Mounjaro dosage will begin at 2.5 mg, gradually increasing up to a maximum dosage of 15 mg. Keep in mind that you don’t need to increase your dosage, and you can choose to stay on a lower dose if you are experiencing good results.

This is the typical dosage schedule for Mounjaro:

Chart showing gradual increase in Mounjaro dosage from 2.5 mg to 15 mg over 20+ weeks.

How long does Mounjaro take to work?

The effectiveness of Mounjaro varies from person to person, and it may take longer for some people to see results. However, many patients notice a reduction in appetite and fewer cravings within the first few doses, even before significant weight loss occurs.

A clinical trial spanning 72 weeks found the following:

After 2 months (8 weeks):

Participants lost around 5–6% of their starting weight on average.

After 6 months (28 weeks):

Average weight loss was approximately 15% of starting weight.

After 18 months (72 weeks):

Participants on the highest dose lost up to 20% of their starting weight on average.

Are there any side effects of Mounjaro?

As with all prescription treatments, Mounjaro has some side effects. Most are mild and temporary, and not everyone will get them.

The most common side effects of Mounjaro are:

  • Low blood sugar
  • Feeling sick (nausea)
  • Diarrhoea
  • Vomiting
  • Stomach pain
  • Constipation

Mounjaro is a relatively new treatment, so its long-term side effects aren't fully known yet. However, it has undergone rigorous clinical trials and is proven to be both safe and effective. While serious side effects are rare, a few have been reported and are worth being aware of.

Mounjaro long-term side effects:

  • Pancreatitis: Inflammation of the pancreas has been reported by a small number of people taking Mounjaro.
  • Thyroid issues: In animal studies, Mounjaro has been linked to an increased risk of thyroid cancer, although this hasn’t been confirmed in humans.
  • Gallbladder issues: Gallstones (hardened deposits formed in the gallbladder) have been reported by some people.
  • Severe allergic reaction: As with all medicines, Mounjaro can cause a serious allergic reaction, requiring immediate medical help.

A full list of side effects will be available during your consultation and in the patient information leaflet sent with your order.

Is Mounjaro safe?

Mounjaro is generally safe when used as prescribed. Most people tolerate it well and shouldn’t experience any side effects.

However, it is a prescription medication, meaning you need a prescription from a medical professional before you can take it. A doctor can assess your health profile and determine whether Mounjaro is safe for you.

Can you buy Mounjaro online without a prescription?

No, you cannot buy Mounjaro without a prescription from a licensed doctor.

Prescriptions are necessary because they:

  • Ensure appropriate use for your specific condition.
  • Prevent potential misuse and associated health risks.
  • Allow for monitoring of side effects and interactions with other medications.
Medical review byDr. Caroline FontanaLast review 02 September 2025
Dr. Caroline Fontana

Note: You must complete a short online consultation so that our doctor can ensure that the treatment is suitable for you. The above pricing should only be used as a reference. The final decision to issue this treatment lies with the prescribing doctor.

FAQs

What is included in the online consultation?
Will a doctor review my consultation?
What happens after I submit my order?
What services are included with my order?
Is the price all-inclusive?
What are my delivery options?
Is it safe to buy prescription medication online?
Is this service discreet?
What is included in the online consultation?

Our online consultations are in the format of short medical questionnaires. You will be asked general questions about your health and medical history, as well as specific medical questions relevant to the treatment you have chosen. We will also ask you for your payment and delivery details to complete the order.

Online consultations take no longer than 5 minutes to complete. All questions are necessary when issuing prescription medicines. It means that our doctors can make sure the treatment is safe and right for you.

Will a doctor review my consultation?

Yes, it is a legal requirement that all online consultations are reviewed by a registered doctor. This is to make sure the chosen treatment is safe and right for you to take. All personal information is stored securely and confidentially.

Please note, all orders are subject to doctor approval, and we cannot guarantee that your order will be approved.

What happens after I submit my order?

Your online consultation will be sent directly to our medical team, where it will be reviewed by on of our in-house doctors.

If a doctor approves you for treatment, they will issue a prescription. Your prescription will then be forwarded to our pharmacist, where you medication will be dispensed and dispatched for delivery.

What services are included with my order?

Every order includes:

  • Free consultation - your consultation will be personally reviewed by one of our registered doctors.
  • Free prescription - a doctor will issue you a prescription if approved for treatment.
  • Free delivery - we provide free express delivery across Europe, you should receive your order in 1-2 working days.
Is the price all-inclusive?

Yes, our service is all-inclusive and there are no hidden fees. All 121doc orders include a free online consultation, a free prescription and free express delivery.

What are my delivery options?

We offer several delivery options at no extra charge:

  • Next-day delivery
  • UPS Access Point - convenient parcel drop-off and collection near your home or work address
  • Nominated-day delivery - choose the most convenient day for delivery

All these options can be tracked and require a signature on delivery. If you are not in, a friend or relative can sign in your place.

Is it safe to buy prescription medication online?

It is safe to buy prescription medications online from genuine and reputable healthcare providers, like 121doc.

Our medical staff and facilities are registered with the relevant medical governing bodies. We also ensure your data is protected by adhering to European data privacy laws.

You can learn more about our certifications here.

Is this service discreet?

Our patients’ privacy is of utmost importance. All your medical information is securely stored and only viewed by our doctors. We do not share your details with third-parties. We are also closely adhere to data privacy laws.

All orders will only show on invoices, bank statements, etc. as ‘HHC Ltd’.

How does it work?

Select
Select Select your treatment and complete our online consultation.
Free consultation

Conditions:

Select a condition here or use the top menu. For every condition, we provide you with information as well as the treatments we currently offer. If you don’t know which is best for you, just click the 'Advise-me' button.

Treatments:

If you know what you want, the quickest way to find a specific medication is to use the search bar here.

Ordering:

Every order starts with an online consultation. We will ask you medical questions to make sure only treatment that is safe and effective is prescribed. We take into account your lifestyle, health and any other medications you’re currently using.

The consultation is completely free, and takes between 5 and 10 minutes of your time.

All your information is safe with us. We don’t share it with anyone unless you want us to.

Help:

If you need any guidance, you can call, message or email our customer service team via the ‘How can we help you?' section here.

Prescribe
Prescribe Our doctors review your order.
Free prescription

Review:

As soon as you place the order, one of our doctors will review your consultation. On working days, this usually takes around one hour.

Questions:

If the doctor has any additional questions, you will receive a phone call and an email. We understand you might be at work or busy. Our customer service representatives are always discreet and can call back at a more convenient time if necessary.

Our emails never contain any personal or medical information, only a link to your private account on our website (where you will find your messages).

Pharmacy:

Once our pharmacy receives your prescription, you will get a second email with your package tracking code.

Deliver
Deliver Expect your delivery the next working day.
Always free. Discreet packaging.
Free next-day delivery

Free:

All orders include next-day delivery. Alternatively, you can select a delivery date that suits you better.

Location:

We also provide a free UPS Access Point service. Pick up your package from one of many collection points across the UK.

With your tracking code, you will know the estimated delivery time. All we need is your signature (or a friend‘s or relative’s).

Discreet:

All parcels are plainly labelled; there is no logo or any indication of its contents. Inside, you will find your treatment as well as a patient leaflet in your chosen language.

Repeat
Repeat Subscribe and save with our repeat service. Never miss a dose again.
10 to 15% off

Repeat:

With 121doc’s Subscribe & Save service, you can automatically receive your treatment every few weeks or months.

The order will be generated by us, using the information you provided (including delivery frequency). You don’t have to do anything. Payment is taken two days before shipping.

Subscribe:

There are two ways to subscribe. The first is during the order process. The second is via your profile here.

You can cancel or amend your repeat prescriptions at any time.

Save:

There are no sign-up fees with this service. Plus, you get a 10% discount off all future prescriptions, increasing to 15% after six orders!