Quick answer: in Ireland in 2026, Mounjaro costs from €229 for your first month with Slimbr (a €49 service fee plus medication from €180 at the 2.5 mg starting dose). After that, expect a combined monthly cost of roughly €255–€469 depending on your dose and how you pay.
Because the dose typically steps up over your first few months, your monthly cost changes too — this guide walks through what you'll actually pay, month by month. If you want a provider-by-provider comparison instead, see our full Mounjaro prices in Ireland comparison. New to the medication itself? Start with our complete Mounjaro Ireland guide.
What makes up your monthly Mounjaro price
Every doctor-led provider's monthly figure is really two or three parts, and quotes only make sense once you know which parts they include:
- The medical service — your prescribing doctor, dose reviews and ongoing support. With Slimbr this is €49 in your first month, then €99 a month paid monthly (or €75 a month if you pay six months up front — ask our team about that option when you join).
- The medication itself — this is the part that changes with your dose. Mounjaro medication starts from €180 a month at 2.5 mg and rises as you titrate up.
- Cold-chain delivery — Mounjaro must be shipped refrigerated. The partner pharmacy charges delivery separately rather than hiding it in a headline price; always check whether any quote you compare includes it.
Month by month: what a typical first six months costs
Mounjaro follows a stepped dosing schedule: the standard approach is 2.5 mg weekly for the first four weeks, then 5 mg, with any further increases made in steps of at least four weeks — always guided by your doctor, and only if you need them. That schedule is why your monthly cost usually changes over the first few months:
| Month | Typical dose | Typical combined monthly cost |
|---|---|---|
| Month 1 | 2.5 mg (starting dose) | from €229 (€49 service + medication from €180) |
| Months 2–3 | usually 5 mg | from ~€280–€304 |
| Months 4–6 | 5–7.5 mg, doctor-guided | from ~€280–€384 |
Two important caveats. First, higher doses aren't a target — many people stay at 5 mg for months if their doctor is happy with how they're responding, and the schedule can be held or slowed at any point. Second, the figures above use the word from deliberately: they exclude cold-chain delivery, and the exact medication price depends on your dose that month.
Mounjaro price per month in Ireland, by dose
Here is the same picture organised by dose rather than by month — useful if you already know where you are in the titration schedule. Every figure below is the partner pharmacy's price for that dose plus Slimbr's service fee (medication + service fee; the pharmacy charges cold-chain delivery separately), taken from our full cost guide and checked on 17 September 2026. The €75 six-month rate is arranged with our team when you join, not a checkout option:
| Mounjaro dose (once weekly) | Medication per month | in total, paid monthly (€99 service) | in total, 6 months up front (€75 service) |
|---|---|---|---|
| 2.5 mg | from €180 | from €279 (first month from €229) | from €255 |
| 5 mg | ~€205 | ~€304 | ~€280 |
| 7.5 mg | ~€285 | ~€384 | ~€360 |
| 10 mg | ~€310 | ~€409 | ~€385 |
| 12.5 mg | ~€350 | ~€449 | ~€425 |
| 15 mg | ~€370 | ~€469 | ~€445 |
Your first month is the exception to the table: the €49 first-month service fee means starting costs from €229 — less than continuing. Euro medication prices track the pharmacy price and the exchange rate, rounded to the nearest €5, so they move rarely; the cost guide always shows the current figure.
The licence sets the ladder itself: 2.5 mg once weekly to start, 5 mg after four weeks, and any further increase in 2.5 mg steps after at least four weeks on the current dose, with 5 mg, 10 mg and 15 mg named as the maintenance doses and 15 mg the maximum. Where you sit on it is your doctor's call, not a menu choice — so treat every row and section here as "what this dose costs if you are on it", never as a target.
Mounjaro 2.5 mg price in Ireland
2.5 mg is the licence's starting dose for the first four weeks, not one of the maintenance doses. Medication is from €180 a month. With Slimbr that is from €229 in total in your first month. The licence moves everyone to 5 mg after four weeks, so for most people 2.5 mg is a first-month cost only; €279 paid monthly (from €255 on the 6-month rate) is simply what that dose costs in any later month.
Mounjaro 5 mg price in Ireland
5 mg is the standard dose from month two and the first of the licensed maintenance doses — the dose many people stay on for months if their doctor is happy with how they are responding. Medication is around €205 a month; in total that is ~€304 a month paid monthly, or ~€280 on the 6-month rate. If you want one number for "a typical month of Mounjaro in Ireland", this is the row to use.
Mounjaro 7.5 mg price in Ireland
7.5 mg is the first optional step up, only if your doctor judges you need it after at least four weeks at 5 mg. Medication is around €285 a month; in total ~€384 paid monthly, or ~€360 on the 6-month rate. It is also the biggest single step on the price ladder — about €80 more than 5 mg for the medication — which is worth knowing when you budget for the months after month two.
Mounjaro 10 mg price in Ireland
10 mg is the middle maintenance dose in the licence. Medication is around €310 a month; in total ~€409 paid monthly, or ~€385 on the 6-month rate. On the licensed schedule 10 mg comes several months in, so it is not a starting cost.
Mounjaro 12.5 mg price in Ireland
12.5 mg is the step between the 10 mg and 15 mg maintenance doses. Medication is around €350 a month; in total ~€449 paid monthly, or ~€425 on the 6-month rate.
Mounjaro 15 mg price in Ireland
15 mg is the maximum licensed dose, and most people never need it. Medication is around €370 a month; in total ~€469 paid monthly, or ~€445 on the 6-month rate. At the top of the ladder the medication costs roughly double the starting dose — which is exactly why "how much is Mounjaro per month?" has no honest single answer until you know the dose.
Across the Irish market, combined monthly costs for the same doses typically run from about €255 to over €600 depending on the provider — the full comparison table breaks down Slimbr vs myBMI, ZAVA, Inish Pharmacy and others. If you'd rather have a doctor walk you through what your months would look like, start with the two-minute quiz.
How to bring the real monthly cost down
The sticker price isn't necessarily what the month really costs you, because two supports apply to doctor-led weight-loss treatment in Ireland:
- Health insurance: some Irish health insurance plans refund part of the cost of doctor consultations under their day-to-day or outpatient benefits. What's covered varies a lot by insurer and plan, so it's worth checking yours.
- Revenue's medical-expense relief: qualifying medical expenses — including doctor fees and prescribed medication — attract 20% tax relief when you claim them through Revenue. On a ~€300 month, that's roughly €60 back at year end for those who qualify.
We've verified how both work in practice — see our full guide to insurance cover and tax relief on weight-loss treatment in Ireland, including what to ask your insurer and how to keep the right receipts.
Did you know you can claim up to 75% back on your health insurance?
See how the claim works →What the monthly cost pays for
If you are ready to begin, you can start Mounjaro in Ireland with Slimbr's doctor-led programme: the eligibility quiz and the doctor assessment call are both free.
The monthly figure isn't just the pen. With a doctor-led programme, your month includes prescribing, monitoring and support — here's how it works with Slimbr:
What progress typically looks like
Everyone's response is individual, and a doctor will set expectations for your situation — but supervised treatment tends to follow a recognisable arc, which is also why budgeting for more than one month matters:
How Mounjaro compares with other injections, per month
Mounjaro (tirzepatide) is one of the most widely used weight-loss injections in Ireland, but it isn't the only one. Wegovy (semaglutide) is its main alternative, and monthly costs land in a broadly similar range once the doctor service and medication are counted together. If you're weighing up the options, our guide to what weight-loss injections cost in Ireland covers the alternatives side by side — and remember that which medication suits you is a clinical decision made with your doctor, not a price decision.
Mounjaro monthly cost FAQs (Ireland, 2026)
How much is Mounjaro per month in Ireland?
With Slimbr, your first month is from €229 (a €49 service fee plus medication from €180 at 2.5 mg). After that, combined monthly costs typically run from about €255 to €469 depending on your dose and whether you pay monthly or six months up front. The pharmacy charges cold-chain delivery separately.
How much is 2.5mg Mounjaro per month in Ireland?
The 2.5 mg starting dose costs from €180 a month for the medication. With Slimbr's service fee on top, that's from €229 in total in your first month, and from €255–€279 a month after that depending on how you pay.
How much is 5mg Mounjaro per month in Ireland?
At the 5 mg dose — the standard dose from month 2, where many people stay — the medication is around €205 a month, making the typical total cost roughly €280–€304 a month with Slimbr depending on your payment plan.
How much is 7.5mg Mounjaro per month in Ireland?
At 7.5 mg the medication is around €285 a month, so the total cost with Slimbr is roughly €360–€384 a month depending on whether you pay monthly or six months up front, with cold-chain delivery charged separately by the pharmacy. It is the first optional step above the standard 5 mg dose and only taken if your doctor decides you need it.
How much is 15mg Mounjaro per month in Ireland?
At the 15 mg maximum dose the medication is around €370 a month, making the total cost roughly €445–€469 a month with Slimbr, delivery extra. Most people never reach 15 mg — the dose is set step by step by your doctor, never picked from a menu.
Is it cheaper to pay for 6 months up front?
Yes — paying six months up front brings the service fee from €99 to €75 a month, a saving of €24 every month (about €144 over the six months). Ask our team about the 6-month option when you join.
Does the monthly price include delivery?
No — Mounjaro needs refrigerated (cold-chain) delivery, which Slimbr adds by the pharmacy rather than building into the headline figure. Some other providers do the same, so always check whether a quoted monthly price includes delivery before comparing.
Can I claim tax relief on Mounjaro in Ireland?
Prescribed medication and doctor fees are qualifying medical expenses, so 20% tax relief is generally available when you claim through Revenue, provided you qualify — and some health insurance plans separately refund part of consultation costs. Our insurance and tax-relief guide explains both.
