Mounjaro (tirzepatide) is one of the most potent weight-loss treatments available today.
Reviewed by Irish Medical Council-registered GPs
Mounjaro is a once-weekly injection used for medical weight management. It contains tirzepatide, a medicine that activates two natural hormones:
Together, these hormones:
It is considered a breakthrough because Mounjaro targets both GLP-1 and GIP, it often leads to greater weight loss than older treatments that target only GLP-1.
To protect your safety and in line with international clinical guidance, doctors usually prescribe Mounjaro only if certain criteria are met.
You may be eligible if:
You are not suitable for Mounjaro if:
During your online assessment, an Irish-registered doctor reviews your full medical history before deciding whether Mounjaro is clinically appropriate.
To protect your safety and in line with international clinical guidance, doctors usually prescribe Mounjaro only if certain criteria are met.
Common side effects:
Less common but serious:
You should seek urgent medical attention if you develop severe symptoms. Our doctor will explain the warning signs before prescribing.
Many side effects can be reduced by:
If symptoms are persistent or severe, contact the prescribing doctor before taking your next dose.
While this page focuses on Mounjaro Ireland, patients often ask how it compares to other GLP-1 medications.
In summary:
For many people, Mounjaro offers the greatest potential for weight loss, but it isn’t right for everyone.
Find out if your weight is in a healthy range for your height.
BMI (Body Mass Index) is a simple index that helps estimate whether your weight is in a healthy range based on your height.
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No. Although Mounjaro is highly effective, it is designed to workalongsidehealthy lifestyle changes, not replace them. The medication helps reduce appetite, stabilise cravings and improve blood-sugar control, but long-term weight management still relies on balanced eating, regular movement and sustainable habits. Patients who combine Mounjaro with supportive lifestyle routines typically achieve better and more consistent results than those who rely on the medication alone.
Many people notice early changes within the first 4-6 weeks, especially reduced appetite and fewer cravings. However, the most significant weight-loss effects usually occur after dose escalation, when the body reaches the 7.5 mg, 10 mg or 12.5 mg doses. Clinical studies show that meaningful weight loss often continues for several months, with the most substantial changes appearing between 3-9 months, depending on dose progression and individual response.
If you realise you missed your injection and less than 4 days have passed, you can take the dose as soon as possible and then return to your normal weekly schedule.If more than 4 days have passed, skip the missed injection and take your next dose at the usual time.You should never take two doses together to “catch up,” as this increases the risk of side effects. If missed doses become frequent or you’re unsure what to do, our medical team can advise you on how to stay on schedule safely.
Not at the moment. Mounjaro for weight management is available only through private prescription in Ireland, meaning the full cost is paid by the patient. While global approvals for obesity treatment continue to evolve, there is currently no HSE reimbursement pathway for Mounjaro as a weight-loss medication. If you choose to use our service, an Irish-registered doctor will assess your suitability and issue a private prescription if clinically appropriate.
Mounjaro activates two key hormone receptors (GLP-1 and GIP), whereas Wegovy and Saxenda act only on GLP-1. Because of this dual-action mechanism, many patients find that Mounjaro offers stronger appetite control and potentially greater weight loss, particularly at the higher doses. However, the best medication for you depends on your medical history, BMI, symptoms, and treatment goals, which our prescribing doctor will assess during your consultation.
Complete a short online questionnaire, reviewed by an IMC-registered GP within 2 hours. Consultation fee: €20.
Start Your €20 Consultation NowAnswer a few quick questions so our doctors can confirm if the treatment is right for you.
Your request is reviewed by our GPs, typically within 2 hours.
Your prescription is sent to your chosen pharmacy, or delivered discreetly to your door.
We check in and adjust your care as needed.
