Prices include next-day delivery and prescription
1 Pen 2.5mg-starting dose | £179.99 | £179.99/pen |
2 Pens 2.5mg + 5mg | £289.99 | £144.99/pen |
Select your treatment after the consultation:
More information about Mounjaro
Mounjaro is a newly approved weight loss medication that has been clinically proven to help patients lose weight. It is made by the pharmaceutical company Eli Lilly, and comes as pre-filled pens that contain 4 doses of Mounjaro.
It works by reducing your appetite. When it's used together with a low-calorie diet and increased exercise it can help you lose weight gradually.
Mounjaro was initially approved to treat type 2 diabetes and continues to be used for this today.
Mounjaro helps with weight loss by reducing your appetite, so you eat fewer calories. It also slows down how fast food leaves the stomach so you feel fuller for longer. However, this effect reduces over time. This action is mediated by the GLP-1 hormone in the body.
Mounjaro contains the active ingredient, Tirzepatide which works on both GLP-1 and GIP receptors. GIP has been shown to reduce how much you eat and increase how much energy you use, resulting in weight loss.
Most weight loss injections are only GLP-1 receptor agonists. However, Mounjaro combines the effects of both these naturally occurring hormones and has been shown to cause more weight loss than medicines that work on GLP-1 alone.
Losing weight can also improve how your body responds to insulin, which helps lower your blood sugar levels.
Mounjaro is now approved for obese adults with a BMI of 30 or more. It is also approved for overweight adults with a BMI of 27 or more who also have weight-related health problems such as:
Initially, Mounjaro was only approved for treating type 2 diabetes in adults here in the UK but has since also been licensed for weight loss. At HealthExpress, we only offer this treatment for weight loss.
This medicine should be used alongside a reduced-calorie diet and increased physical activity.
You cannot use it if:
You should also tell your doctor if you:
Mounjaro KwikPen comes as a pre-filled injection pen that you inject yourself with once weekly.
Choose a day that works for you and inject this medicine on the same day each week. If you need to change the day of the week you take your dose, ensure there are at least 3 days (72 hours) between doses.
Choose your injection site
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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. |
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Wipe the red inner seal with a swab. Choose a new pen needle and pull off the paper tab. |
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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. |
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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. |
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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. |
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To inject Mounjaro: 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. |
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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. |
The recommended starting dose is 2.5mg, injected once weekly for 4 weeks. The dose will be gradually increased over a few months, depending on how well you can tolerate the medicine and if it works for you. The maximum dose of Mounjaro is 15mg.
Mounjaro is available in 6 different strengths, these include 2.5mg, 5mg, 7.5mg, 10mg, 12.5mg and 15mg pens.
If you miss a dose of Mounjaro, take the missed dose as soon as possible within 4 days after the missed dose. If it has been more than 4 days, skip the missed dose and take your next dose on the regularly scheduled day. Do not take 2 doses of Mounjaro within 3 days of each other.
If you have missed a dose, seek medical advice first before changing your dosing regime.
You must store your Mounjaro pens correctly to make sure the medication remains effective.
Unused pens:
Used pens:
Clinical trials have shown that Tirzepatide, the active ingredient in Mounjaro, is effective for weight loss.
One study looked at the effects of Mounjaro versus a placebo (an inactive drug) over 72 weeks.
The results from this study showed that the percentage of adults who had a weight reduction of 5% or more was:
They also found that 50% and 57% of adults taking the 10mg and 15mg doses of Tirzepatide respectively had a reduction in body weight of 20% or more. Whereas only 3% of those in the placebo group showed similar results.
Not everyone using this medicine will experience side effects. However, these are the most common side effects of Mounjaro:
Usually, side effects like nausea, vomiting and diarrhoea occur when the dose of Mounjaro is increased and go away over time.
Mounjaro may cause rare but serious side effects, including:
These are not all the possible side effects. Please refer to the patient information leaflet (PIL) for a complete list.
Talk to your doctor about any side effects that concern you or don’t resolve. If you experience any rare side effects, contact your healthcare provider straight away.
Mounjaro slows down the process of emptying the stomach. This might impact the absorption of other oral medicines you take. Tell your doctor if you take any other prescription drugs, over-the-counter medicines, vitamins, or herbal supplements.
Mounjaro may interact with or affect:
It might also reduce the effectiveness of oral hormonal contraceptives. If you take an oral hormonal contraceptive, discuss switching to a different contraceptive with your doctor. Also, consider adding a barrier method of contraception (such as condoms) for 4 weeks after you start taking Mounjaro and for 4 weeks each time you increase your dose.
There are many factors to consider when determining which weight loss drug is best for you. Here is a helpful table showing all weight loss medications available and how they differ from each other.
Treatment Efficiency | Potential Weight Loss | How It Works | Active Ingredient | Usage | Dosage Changes* | Prices From: | |
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Mounjaro | Very high | Up to 20% in 17 months | Reduces appetite and increases energy use | Tirzepatide | Weekly injection | Increases after 4 weeks | £179.99 |
Wegovy | High | Up to 15% in 1 year | Reduces appetite by slowing stomach emptying | Semaglutide | Weekly injection | Increases monthly until month 4-5 | £169.00 |
Saxenda | Moderate | Up to 11% in 1 year | Reduces appetite by slowing stomach emptying | Liraglutide | Daily injection | Increases weekly until reaching 3.0mg | £69.99 |
Mysimba | Moderate | Up to 10% in 1 year | Alters brain pathways to reduce appetite | Bupropion & Naltrexone | 1-4 tablets daily | Increases weekly until week 4 | £109.99 |
Xenical | Moderate | Up to 10% in 1 year | Decreases fat absorption from food | Orlistat | Up to 3 capsules daily | Remains the same | £59.99 |
Deciding which treatment is right for you depends on many factors, but you don't have to make the decision alone. Start a consultation with HealthExpress today, and our doctors will assist you in selecting the appropriate treatment for your needs.
You can purchase Mounjaro (Tirzepatide) for weight loss online at HealthExpress after our doctors confirm if it's right for you.
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.
Losing weight for good means creating a healthy lifestyle. This might be the toughest part, but you don’t have to do it alone. Our multidisciplinary team of experts help you throughout your journey.
Dietary advice and meal plans to help build long-term habits
Exercise tips to add into your daily routine
Follow-up consultations to check in with your journey
Information about weight loss related topics
Calorie tips to reduce them in a smart way
Product name | Mounjaro |
Active ingredient(s) | Tirzepatide |
Manufacturer | Eli Lilly and Company |
Lowest price | £179.99 |
Trustpilot rating | 4.8/5 |
Trustpilot reviews | 122 |
Availability | In stock |
Description | Once weekly weight loss injection |
Exemption | Subject to medical prescription |
Administration | Subcutaneous injection |
Presentation | 4 dose pre-filled pen |
Available dosage(s) | 2.5mg, 5mg, 7.5mg, 10mg, 12.5mg, 15mg |
Application | Adults with a BMI of 30 or above, or 27 and above with another condition |
Posology | Consult patient leaflet |
Drug class | GIP and GLP-1 agonist |
Alcohol consumption | No interaction |
When pregnant/breastfeeding | Not permitted |
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.
Yes, buying Mounjaro through HealthExpress is safe. We follow strict UK doctor and pharmacy regulations and only offer genuine medication. Mounjaro will only be prescribed by one of our doctors following an online consultation if treatment is suitable for you. Our secure payment ensures your privacy and safety. HealthExpress is a certified online pharmacy, and our customer service team is available to address any concerns you may have.
Yes, we will ensure your order is delivered to your chosen address in discreet packaging. The packaging will not have any reference to the brand ‘HealthExpress’ or the contents. Billing will also be discreet.
Yes, the price listed is all-inclusive. This means that the price covers the cost of the consultation, prescription, medication, and next-day delivery. There are no surprising hidden fees.
We offer several delivery options within the UK to ensure you receive your order quickly and securely.
For more information on delivery options, please click here.
Anne , 08 Nov
Amazing product
HORJAN B , 07 Nov
Good and fast working
Ms H , 07 Nov
Easy to use. Early days yet to amy weight loss . But feel well after 2 days no side effects.
Jen , 07 Nov
Great effect, does what it says on the tin. Some nausea first few days after injection, rectified by peppermint tea (yuk!). Chronic constipation like with majority of users, still to find the best remedy.
SVENDSEN , 04 Nov
Very happy
Sarah , 03 Nov
Mounjaro has changed my life. I’m 2 weeks in and I’ve lost the ‘food noise’ I’ve had for 39 years. I’m still hungry at normal times, but this is fine because I can make healthy choices. I feel like a normal person. Looking forward to moving up a dose and seeing what else happens.
Sayo , 02 Nov
Great has worked well so far, side effects nit so bad
Thomas M , 02 Nov
A great product. Don’t feel hungry but still enjoy food so has really helped me not overindulge . A bit constipated but told that’s to be expected
Louise S , 02 Nov
Too early to tell really but so far so good
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