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Home / Weight Loss / Mounjaro

Mounjaro

Buy Mounjaro once-weekly weight loss injection pens online

2.5mg
1 Pen 2.5mg-starting dose (£179.99)

Prices include next-day delivery and prescription

1 Pen 2.5mg-starting dose £179.99
2 Pens 2.5mg + 5mg £289.99 £144.99/pen

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What is Mounjaro?

Mounjaro is a prescription weight loss injectable. It was initially approved for the treatment of type 2 diabetes. Weight loss was found to be a common side effect, and therefore has since been developed and licensed to treat obesity.

It works by reducing your appetite, which helps you consume fewer calories. Alongside a reduced-calorie diet and increased exercise, it can help you lose weight gradually.

It is available as pre-filled injection pens that you use once weekly. Each pen contains 4 doses. After each pen, you may increase the dose if suitable until you reach the maximum maintenance dose.

How does Mounjaro work?

Mounjaro works by reducing your appetite. This means you eat fewer calories and, alongside a lower–calorie diet, will help you to lose weight.

The active ingredient is Tirzepatide which is a GLP-1/GIP receptor agonist. It belongs to the same family of drugs as Saxenda (Liraglutide), Wegovy and Ozempic (Semaglutide).

It works on two hunger hormones: GLP-1 and GIP. This is unique compared to other weight loss treatments like Saxenda and Wegovy which only affect GLP-1.

This combined effect helps you lose weight by:

  1. Controlling your blood sugar levels.
  2. Delaying stomach emptying, leaving you feeling fuller for longer.
  3. Reducing your appetite and how much energy you lose.

Along with a reduced-calorie diet and exercise regime, these mechanisms will help you gradually lose weight.

What are the benefits?

Mounjaro has many benefits when it comes to weight management.

  • It’s effective - Studies show that people on the maintenance dose of Mounjaro lost over 20% of their original body weight after 72 weeks.
  • You only take it once weekly - this means you don’t have to remember to take something daily.
  • It promotes sustainable weight loss - the treatment plan helps you create lifelong healthy habits which will help you keep the weight off for good.
  • It boosts your mental and physical health - it lowers your blood sugar, improves mobility, boosts immunity and improves self-esteem.

It is an effective and simple-to-use treatment for weight loss.

How do I use Mounjaro?

Mounjaro is available as injection pens called KwikPens. You inject them once weekly. Each pen contains 4 doses.

After each pen is finished, you may increase the dose if suitable.

Each pack of Mounjaro comes with a full set of instructions and diagrams in the patient information leaflet.

Preparing your Mounjaro KwikPen

Before you use your KwikPen, you need to prepare the needle to make sure it works.

Choose your injection site
Step 1

You can inject this medicine into your stomach, thighs, or the back of your upper arms. You can inject it yourself, or another person can help you do this.

Step 1

Pull the pen cap off and inspect the pen and label to ensure you have the right medicine and dose.

Check the pen for any signs of damage, and if you find any, refrain from using it. Mounjaro should be colourless to slightly yellow.

Step 1

Wipe the red inner seal with a swab.

Choose a new pen needle and pull off the paper tab.

Step 1

Put the capped needle onto the pen and twist it on until it is secure.

Pull off the outer needle shield and keep it aside (this will be reused). Then pull off the inner needle shield and throw this away.

Step 1

To prime the pen, turn the dose knob until you hear 2 clicks and the extended line is shown in the dose window.

Priming the pen removes air from the cartridge and makes sure it’s working correctly.

Step 1

Hold your pen with the needle facing upwards and gently tap the cartridge holder.

Release some medicine into the air by pushing the dose knob in until it stops, then slowly count to 5 while still holding it. The ‘0’ icon must appear in the dose window.

Whilst preparing the pen, if you notice any fault, do not use the pen.

How to use Mounjaro

Once you have prepared the dose, you are ready to inject Mounjaro.

To inject Mounjaro:
Step 1

Turn the dose knob until a ‘1’ icon appears in the dose window.

Insert the needle into your skin and push the dose knob in until it stops, then slowly count to 5 while holding the dose knob.

Before removing the needle, make sure the ‘0’ icon appears in the dose window.

Pull the needle out of your skin.

Step 1

Place the outer needle shield back onto the needle, then unscrew the capped needle and put this into a sharps container.

Put the pen cap back onto the pen and store it appropriately.

You can get someone to help you inject Mounjaro if you need to.

Mounjaro dosage

Throughout your treatment, you will gradually increase the dose. There are 6 Mounjaro doses: 2.5mg, 5mg, 7.5mg, 10mg, 12.5mg and 15mg.

The starting dose of Mounjaro is 2.5mg. You will take this dose once a week for a minimum of 4 weeks. Then, you may increase the dose to 5mg. You will increase the dose every 4 weeks until you reach the maximum maintenance dose of Mounjaro which is 15mg.

If at any point you experience side effects, you may stay on the current dose or decrease your dose as necessary.

If you forget to inject Mounjaro, and it has been:

  • 4 days or less - use Mounjaro as soon as you remember and take your next dose at the regularly scheduled time.
  • more than 4 days - skip the missed dose and take your next dose at the regularly scheduled time

You should allow for a minimum of 3 days between 2 doses.

How do I store Mounjaro?

Store Mounjaro pens in the refrigerator (2-8°C).

You may store Mounjaro unrefrigerated (not above 30°C) for up to 30 days. After 30 days, it must be discarded.

Keep it out of sight and reach of children.

How do I dispose of Mounjaro?

Needles must be discarded in a yellow sharps bin. You will be provided with a sharps bin when you order online from OnlineClinic.

Once your sharps bin is full, you will need to contact your local council so they can collect them and dispose of them.

The pen itself can be disposed of at your local pharmacy.

Do not throw away the needles or pens with your regular household waste or put them down the toilet.

What are the possible side effects of Mounjaro?

Like all prescription medicines, Mounjaro may cause side effects.

The most common side effects of Mounjaro include:
  • constipation
  • diarrhoea
  • decreased appetite
  • dizziness
  • hair loss
  • stomach discomfort
  • low high blood pressure
  • sickness and vomiting
  • tiredness and weakness
  • feeling unwell (malaise)

Most common side effects should go away on their own once your body gets used to the medicine. However, talk to your doctor if any side effects concern you or don’t go away.

Mounjaro is a black triangle drug, meaning it is under careful monitoring. This means it’s important you report any side effects you experience to the MHRA through the Yellow Card Scheme.

Who can use Mounjaro?

Mounjaro is suitable for people who are considered medically overweight and for whom diet and exercise alone has not worked.

You are eligible if you have a BMI of 30 and over, or 27 and over and have one weight-related condition such as:

  • prediabetes
  • type 2 diabetes
  • high blood pressure
  • heart disease (including high cholesterol, heart attack, stroke, coronary artery disease) 
  • obstructive sleep apnoea
  • PCOS (polycystic ovarian syndrome)
  • osteoarthritis or gout
  • chronic back pain
  • fatty liver disease
  • gallbladder disease

You cannot use Mounjaro if you:

  • are pregnant, planning to become pregnant or breastfeeding
  • are allergic to Mounjaro or any of the other ingredients
  • you have a personal or family history of medullary thyroid carcinoma (MTC) or Multiple Endocrine Neoplasia syndrome type 2 (MEN 2)

You should also tell your doctor if you:

  • have problems with your pancreas, liver, kidneys, or gallbladder
  • have severe problems with your stomach (such as food remaining in your stomach for longer than normal or problems digesting food)
  • have a history of diabetic retinopathy
  • are using other diabetes medicines such as a sulphonylurea or insulin
  • have heart conditions (especially heart rate problems or heart failure)

If you have any other medical condition that is not listed, ask your doctor before using Mounjaro.

Can I buy Mounjaro online?

Yes, you can buy Mounjaro online.

When buying medication online, you should always ensure that the provider is credible and safe.

Ensure that the pharmacy is registered with the General Pharmaceutical Council (GPhC), the doctors are registered with the General Medical Council (GMC) and that the provider is registered with the Care Quality Commission (CQC).

At OnlineClinic, our pharmacy and all of our doctors are registered.

You can purchase Mounjaro (Tirzepatide) for weight loss online at OnlineClinic after our doctors confirm it's right for you.

When placing an order, you will need to complete an online medical consultation which will be reviewed by one of our registered doctors. If approved, the medication will be sent to your door in specialised cold packaging, ensuring the optimal temperature control for the product.

Note: Decisions about treatment are for both the prescriber and the person to jointly consider during the consultation. However, the final decision will always be the prescriber’s.

Mounjaro information
Product nameMounjaro
Active ingredient(s)Tirzepatide
ManufacturerEli Lilly
Trustpilot rating-
Trustpilot reviews-
AvailabilityOut of stock
DescriptionWeight loss injection that works by reducing your appetite
ExemptionSubject to medical prescription
AdministrationInjection
PresentationPre-filled injection pens
Available dosage(s)2.5, 5, 7.5, 10, 12.5 and 15mg
ApplicationAdults with a BMI of 30 or over, or 27 and over with a weight-related condition
PosologyConsult the patient leaflet
Drug classGLP-1/GIP receptor agonist
Alcohol consumptionNot recommended
When pregnant/breastfeedingNot permitted
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