Choosing the right weight management medication is a significant decision—not just for your health, but for your monthly budget. While Mounjaro (Tirzepatide) has seen a surge in popularity due to its dual-action mechanism, Wegovy (Semaglutide) remains a more accessible entry point for many.
This guide breaks down the total cost of ownership over 6 and 9 months, including the required monthly prescription renewal fees through the Inish Pharmacy Online Doctor Service.
Understanding the Investment: Mounjaro vs. Wegovy
The primary difference between these two medications lies in how they interact with your body’s receptors. Wegovy is a GLP-1 receptor agonist, while Mounjaro is a "dual agonist," targeting both GLP-1 and GIP receptors.
Because Mounjaro targets two pathways instead of one, clinical data often suggests it can lead to higher average weight loss, but this advanced technology comes with a higher price tag.
6-Month and 9-Month Cost Comparison
The following calculations assume a standard titration schedule (increasing the dose every 4 weeks to reach the highest maintenance dose) and include the €20 monthly prescription renewal fee.
Treatment Cost Breakdown Table
| Duration | Wegovy (Total Cost*) | Mounjaro (Total Cost*) | Difference |
| 6 Months | €1635 | €2840 | + €1205 |
| 9 Months | €2535 | €4640 | + €2105 |
Reducing Your Costs: Tax Relief on Medical Expenses
While the monthly cost of Mounjaro and Wegovy is high, it is important to remember that these are qualifying health expenses in Ireland. This means you can claim tax relief on the cost of your medication and the online doctor consultation fees.
How Much Can You Claim Back?
Under current Revenue guidelines, you can claim relief at the standard rate of tax (20%) for health expenses. This effectively reduces your total out-of-pocket spend by one-fifth.
The "Effective Cost" Breakdown:
| Duration | Wegovy (Total Cost) | After 20% Tax Relief | Effective Monthly Average |
| 6 Months | €1635 | €1308 | €218 |
| 9 Months | €2535 | €2028 | €225 |
| Duration | Mounjaro (Total Cost) | After 20% Tax Relief | Effective Monthly Average |
| 6 Months | €2840 | €2272 | €378 |
| 9 Months | €4640 | €3712 | €412 |
How to Claim Your Refund
At Inish Pharmacy, we make the claiming process as simple as possible:
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Itemised Receipts: We provide a full, itemised prescription claim form with every dispensing. This is the exact documentation required and accepted by Revenue.
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Online Doctor Fees: Remember to also keep your receipts for the €20 monthly online doctor service, as these fees are also eligible for the 20% tax relief.
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Revenue myAccount: You can claim these expenses at the end of the tax year through the 'Health Expenses' section of your Revenue myAccount.
The Monthly Titration Schedule: What You’ll Pay
Wegovy Pricing Path
Wegovy has a more stable pricing structure in the early stages, making it easier to forecast your initial spending.
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Months 1–3 (0.25mg to 1.0mg): €255 per month (Medication + Prescription Fee)
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Month 4 (1.7mg): €270 per month (Medication + Prescription Fee)
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Month 5+ (2.4mg Maintenance): €300 per month (Medication + Prescription Fee)
Mounjaro Pricing Path
Mounjaro prices scale more significantly as the dosage increases, reflecting the higher concentration of the dual-action active ingredient.
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Month 1 (2.5mg): €300 (Medication + Prescription Fee)
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Month 2 (5.0mg): €370 (Medication + Prescription Fee)
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Months 3–4 (7.5mg to 10.0mg): €485 per month (Medication + Prescription Fee)
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Month 5+ (12.5mg to 15.0mg): €600 per month (Medication + Prescription Fee)
Beyond the Price Tag: Choosing the Right Treatment
While the cost gap is clear, the choice often comes down to individual health goals and how your body responds to the medication.
Why Choose Mounjaro?
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Dual-Action: Targets two hunger hormones (GIP and GLP-1) for potentially more significant weight loss results.
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Efficiency: Many patients report reaching their goals faster on the higher doses of Tirzepatide.
Why Choose Wegovy?
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Cost-Effective: Significantly lower monthly and long-term costs.
- Heart Health Protection: Wegovy is the first and only weight management medication clinically proven to reduce the risk of major cardiovascular events (such as heart attack, stroke, or cardiovascular death) by up to 20% in adults with known heart disease and obesity.
- Proven Track Record: As a pure GLP-1, it has a long history of use in weight management with a well-understood safety profile.
Frequently Asked Questions: Managing Your Treatment Costs
Do I have to increase my dose every month?
Not necessarily. While the "standard" titration suggests a monthly increase, your clinical progress is what matters most. If you are seeing excellent results and have manageable side effects on a lower dose, your doctor may recommend staying on that dose longer, which can also help manage costs.
Is the Online Doctor fee mandatory every month?
Yes. To ensure your safety and monitor your progress, a prescription renewal is required every 30 days. The Online Doctor Service fee of €20 ensures you have continued access to clinical oversight throughout your journey.
Can I switch from Wegovy to Mounjaro (or vice versa)?
Switching is possible but must be managed by a healthcare professional. Because the dosages don't align 1:1, a doctor will need to determine the appropriate "starting" dose for the new medication to avoid severe side effects.
Inish Pharmacy Expert Tip
"When patients are choosing between the two, it's important to consider their family history. If a patient has a history of heart disease, Wegovy is often the preferred clinical choice because of its proven ability to protect the heart, even if the weight loss is slightly more gradual than with Mounjaro."
Next Steps: How to Start Your Consultation
Taking the first step toward medical weight management is a significant decision. At Inish Pharmacy, we aim to make the process as safe, discreet, and straightforward as possible through our Online Doctor service.
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Complete Your Clinical Assessment: Visit our Online Consultation Page and select the Weight Management category. You will be asked to complete a medical questionnaire regarding your health history and goals.
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GP Review: Your assessment will be reviewed by an Irish-registered GP to determine if Wegovy or Mounjaro is clinically suitable for you.
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Prescription & Pharmacy Integration: Once approved, your prescription is sent directly to our pharmacy team. No paper forms are required.
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Discreet Delivery or Collection: Choose discreet, temperature-controlled shipping nationwide or collect from our pharmacies in Buncrana, Carndonagh, or Muff.
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Ongoing Pharmacist Support: Your safety is our priority. Our pharmacists are always available to answer any questions you may have regarding your medication, side effects, or how to use your injection pen. You can contact our team at any time for professional advice and support.
Ready to begin your weight management journey?
Start Your Online Consultation with Inish Pharmacy →
Inish Pharmacy Support
We understand that starting a new medication can feel overwhelming. That’s why we don't just 'dispense'. Whether you need help understanding the dosage schedule or have concerns about a side effector how to administer the medication, our pharmacists are only a phone call or an email away. We are here to support you at every stage of your journey, from your first dose to your maintenance phase.