About Mounjaro
Mounjaro is the brand name for tirzepatide, used for weight management in adults living with obesity, or overweight with a weight-related condition, alongside diet and activity.
Tirzepatide is the first of a new class that activates two receptors, GIP and GLP-1, which can make it especially effective at reducing appetite. We dispense Mounjaro and support you throughout your programme.
Product information
Is Mounjaro right for you?
Mounjaro is a prescription-only medicine for weight management. A prescriber decides whether it suits you, and our pharmacists carry out their own checks before dispensing.
Often suitable if…
You are an adult with a BMI of 30 or more
Your BMI is 27 or more and you have a weight-related condition such as high blood pressure, type 2 diabetes or sleep apnoea
You are ready to combine it with a reduced-calorie diet and more physical activity
You would value pharmacist support and regular reviews along the way
Speak to us first if…
You are pregnant, planning a pregnancy or breastfeeding
You have had pancreatitis, gallbladder problems or a thyroid condition
You have a personal or family history of medullary thyroid cancer or MEN2
You use the combined pill, tirzepatide can affect how well it works around dose changes
This is a general guide, not a diagnosis. Only a prescriber can confirm whether Mounjaro is suitable for you, and we are always happy to talk it through first.
What Mounjaro can do
Dual hormone action
Tirzepatide activates two gut-hormone receptors, GIP and GLP-1, for a strong effect on appetite and fullness.
Substantial weight loss
In studies, alongside diet and activity, people lost around 20% of their body weight on average at the higher doses.
Just once a week
A single small injection under the skin on the same day each week, from a simple pre-filled KwikPen.
Supervised in Tallaght
Dispensed and reviewed by our pharmacists, with real check-ins and evening collection right up to 9pm.
How Mounjaro works
Mounjaro is a dual GIP and GLP-1 receptor agonist, it mimics two natural gut hormones that regulate appetite and blood sugar.
Dual hormone action
Activates both GIP and GLP-1 receptors for a stronger effect on appetite.
Reduces hunger
Helps you feel full sooner and stay satisfied for longer.
Supports weight loss
With diet and activity, supports significant, sustained results.
What results can you expect?
Mounjaro is one of the most effective weight-management medicines available, but it works best as part of a plan. Here is a realistic picture, remembering that everyone responds differently.
~20%
Average body-weight reduction
Seen at higher doses in clinical trials over about 72 weeks, with diet and activity.
1 / week
A single weekly injection
Increased in 2.5 mg steps to the dose that works for you, up to 15 mg.
4–6 wks
Before you notice changes
Appetite often shifts early; steady weight loss builds over the following months.
These figures are averages from clinical studies and are not a promise of results. Your outcome depends on your starting point, your dose and the diet and activity changes you make alongside treatment. Mounjaro is intended for long-term use under review.
Injecting Mounjaro: the essentials
Mounjaro comes as a pre-filled KwikPen you use once a week. Our pharmacist will show you in person, this is a quick refresher.
Pick your day and site
Inject on the same day each week into the tummy, thigh or upper arm, and rotate the exact spot every time.
Prepare the pen
Take it from the fridge, check the liquid is clear, and use the pen as shown, needles are included at every dispensing.
Give the injection
Press the pen against the skin and hold until the dose completes. It takes only a few seconds.
Dispose safely
Put used pens and needles straight into a sharps bin, ask us about getting one.
If you miss a dose
If it is within 4 days, take it as soon as you remember. If longer, skip it and resume on your usual day, never double up.
Contraception note
If you use the pill, use an extra barrier method for 4 weeks after starting and after each dose increase, and ask us if unsure.
A gradual step-up to your maintenance dose
Mounjaro starts low and increases in 2.5 mg steps to the dose that works for you.
2.5 mg
Starting dose to let your body adjust.
5 mg
First maintenance option.
7.5-10 mg
Increased in 2.5 mg steps if needed.
15 mg
Highest maintenance dose.
Mounjaro guide pricing
Guide prices per monthly pen, with 6 needles included at each dispensing. Please call us to confirm current pricing before you order. Mounjaro is not covered by the medical card or the Drugs Payment Scheme.
Side effects
Nausea, diarrhoea, vomiting or constipation
Reduced appetite or indigestion
Redness or discomfort at the injection site
Usually mild to moderate, improving over time
Storage & handling
Store unopened pens in the fridge at 2-8°C
Do not freeze
May be kept at room temperature for a limited period, if advised
Dispose of used pens and needles in a sharps container
Using Mounjaro safely
Mounjaro is well studied, but like any medicine it is not for everyone. Here is what to watch for, and when to get help.
Do not use if
You are pregnant, trying to conceive or breastfeeding
You have had a serious allergic reaction to tirzepatide
You have a personal or family history of medullary thyroid cancer or MEN2
Tell us before you start
Any history of pancreatitis, gallstones or gallbladder disease
Type 2 diabetes, especially if you take insulin or a sulfonylurea
You use the combined oral contraceptive pill
Kidney problems, or any medicine affected by slower stomach emptying
Get urgent help if
Severe, persistent tummy pain that may spread to your back
Signs of an allergic reaction, such as swelling, rash or trouble breathing
Ongoing vomiting or diarrhoea that leaves you dehydrated
How to get Mounjaro
Get a prescription
Mounjaro is prescription-only. Talk to your GP or an online doctor to see if it's suitable for you.
Send it to us
Ask for your prescription to be sent electronically via Healthmail to Pharmacy Hub, Tallaght.
We check & dispense
Our pharmacists carry out their own safety checks, then dispense your pen.
Ongoing support
Collect till 9pm, with pharmacist check-ins along the way.
Wegovy vs Mounjaro at a glance
Frequently asked questions
Is Mounjaro available in Ireland?
Yes. It's licensed for weight management and we can dispense it for you in Tallaght once you have a valid prescription.
How is Mounjaro different from Wegovy?
Mounjaro (tirzepatide) acts on two receptors, GIP and GLP-1, while Wegovy (semaglutide) acts on one. Both are once-weekly injections; in studies tirzepatide produced slightly greater average weight loss.
How much weight can I expect to lose?
In trials people lost around 20% of their body weight on average at the higher doses over about 72 weeks, alongside diet and activity. Individual results vary.
What's the dosing schedule?
You start at 2.5 mg once weekly and increase in 2.5 mg steps, moving up only when you are ready, to a maximum of 15 mg weekly.
How do I take it?
It's a once-weekly injection under the skin using a pre-filled pen, and needles are included at every dispensing. We'll show you exactly how.
Does it affect the contraceptive pill?
It can reduce how well the pill works around the time you start and each time your dose goes up. Use an additional barrier method for four weeks at those points, and ask us if unsure.
Will the side effects settle?
For most people digestive effects are strongest early and ease as the dose steps up slowly. Tell us if they are hard to manage, we can help.
Is it covered by the medical card or DPS?
No, Mounjaro is currently not covered by the medical card or the Drugs Payment Scheme, so it is a private purchase.
Can I get my prescription sent to you?
Yes. Ask your GP or online doctor to send it by Healthmail to Pharmacy Hub, Tallaght. Call us if they need our address.
Related services
Wegovy
Once-weekly semaglutide injection for weight management.
Learn more Weight-loss clinicWeight-loss programme
Pharmacist-supervised weight-loss injections with support at every step.
Learn more Express walk-in servicePrescriptions & repeats
Fast, accurate dispensing and repeat management, ready when you are.
Learn moreThis information is written by our pharmacy team as a general guide and is not a substitute for medical advice. A valid prescription is required before we can supply any prescription medicine. Your GP or specialist will decide the most suitable treatment for you based on your history.
Start your Mounjaro journey with us
Open till 9pm Monday to Friday at Abberley Court, Tallaght. Book in and we'll be glad to help.
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