Mounjaro Ireland — 2026 Guide

Mounjaro Ireland cost, doses and online provider routes

Compare buy-Mounjaro-online searches as regulated consultation routes: dose-stage cost, eligibility, side-effect support and provider checks.

22%

avg. weight loss (max dose trial)

€300–475

per month in Ireland

Weekly

single injection

What is Mounjaro?

Mounjaro is the brand name for tirzepatide, a medication developed by Eli Lilly. It was originally approved for type 2 diabetes management and subsequently approved for chronic weight management in adults with obesity or overweight with at least one weight-related health condition.

Unlike older GLP-1 medications such as Wegovy (semaglutide) or Saxenda (liraglutide), Mounjaro works on two hormonal pathways simultaneously: it activates both the GLP-1 (glucagon-like peptide-1) receptor and the GIP (glucose-dependent insulinotropic polypeptide) receptor. This dual mechanism is believed to be the reason it produces greater weight loss than single-receptor GLP-1 drugs.

Why many patients compare Mounjaro first

In the SURMOUNT-1 clinical trial — the largest weight loss trial of any GLP-1 medication — participants taking the highest dose of Mounjaro (15mg weekly) lost an average of 22.5% of their body weight over 72 weeks. That is roughly equivalent to losing 22kg if you start at 100kg.

By comparison, Wegovy (semaglutide 2.4mg) produced an average weight loss of around 15% in its pivotal trial (STEP-1). Trial averages are useful for comparison, but individual results vary and tolerability, contraindications, cost and provider support all matter.

Mounjaro Cost Breakdown by Dose — Ireland 2026

Mounjaro is prescribed in a dose-escalation protocol: you start on the lowest dose and increase every 4 weeks until you reach your maintenance dose (the highest dose you tolerate well).

DoseTreatment PhaseApprox. Monthly CostNotes
2.5mgStarter (Month 1–2)~€300/moLowest dose. Tolerance-building phase.
5mgMonth 3–4~€330/moFirst maintenance step for most patients.
7.5mgMonth 5–6~€370/moSignificant weight loss typically begins here.
10mgMonth 7–8~€400/moCommon long-term maintenance dose.
12.5mgMonth 9–10~€440/moHigher escalation for greater results.
15mgMonth 11+~€475/moMaximum dose. Best results in trials.

* Costs are indicative averages across Irish providers. Consultation fees (€20–€109) are charged separately.

How to Get Mounjaro in Ireland

Mounjaro is available in Ireland via private prescription only — it is not covered by the HSE Drug Payment Scheme or GMS for weight loss. However, you do not need a GP referral. The process is straightforward:

Mounjaro Provider Comparison — Ireland

The following providers all offer Mounjaro in Ireland via regulated online consultation. Prices and availability vary.

HealthHero

ROI GP Route

healthhero.ie

Ireland-based GP-led weight-management pathway. Public page states prescriptions are sent to Republic of Ireland pharmacies only.

Consult
€50 / €35 follow-up
Mounjaro
Confirm medicine
Wegovy
Confirm medicine

myBMI

Most Established

my-bmi.ie

Most established Irish weight loss clinic. Coaching included.

Consult
€109 (plan incl.)
Mounjaro
Available
Wegovy
€220+/mo

WeightLossInjections.ie

ROI/NI Route

weightlossinjections.ie

Injectable-focused route. Public FAQ describes Republic of Ireland and Northern Ireland pharmacy fulfilment.

Consult
€50 / €30 repeat
Mounjaro
Available
Wegovy
Available

Mounjaro vs Wegovy — Which Should You Choose?

Choose Mounjaro if: You want maximum weight loss results and can afford the higher monthly cost (€300–475 vs €220+ for Wegovy). Mounjaro also tends to work well for people who have previously tried semaglutide without sufficient results.

Choose Wegovy if: Cost is a key factor, or if you prefer to start with a well-established, slightly cheaper option. Wegovy still produces excellent results (~15% body weight loss) and has a longer track record.

Frequently Asked Questions

Is Mounjaro available in Ireland?

Yes. Mounjaro (tirzepatide) is available in Ireland via private prescription. Several regulated online providers offer it, with monthly costs starting around €300 for the starter dose.

How much does Mounjaro cost in Ireland?

Mounjaro costs between €300 and €475 per month in Ireland, depending on the dose. The starter dose (2.5mg weekly) is cheapest; the highest maintenance dose (15mg weekly) is most expensive. Consultation fees (€20–€109) are additional and charged separately by most providers.

Is Mounjaro better than Wegovy?

Some clinical trials report higher average weight loss with tirzepatide than semaglutide, but results vary by study, dose, tolerability and patient. Mounjaro can also cost more per month, so a prescriber should help compare suitability.

How long does it take for Mounjaro to work?

Most people notice a reduction in appetite within the first two weeks. Meaningful weight loss is typically visible by weeks 4–8. The full effect builds over 12–20 weeks as the dose is gradually increased. Clinical trials ran for 72 weeks to assess maximum effect.

Do I need a GP referral to get Mounjaro in Ireland?

No. All the online providers listed on this site offer their own medical consultation as part of the service. You fill in a detailed health questionnaire, a registered doctor reviews it, and — if suitable — issues a prescription.

What are the side effects of Mounjaro?

The most common side effects are gastrointestinal: nausea, vomiting, diarrhoea, and constipation. These typically occur when doses are increased and improve over time. Starting on the lowest dose and escalating slowly is key to tolerability. Serious side effects are rare but include pancreatitis and gallbladder issues.

Compare Mounjaro providers in Ireland

Check dose-stage cost, prescriber review, side-effect support and stock before choosing a private consultation route.

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