Looking for a new way to support your weight loss journey? Mounjaro is a prescription-only injectable medication that’s changing the game when it comes to weight management. Now available in Ireland, Mounjaro is a once-weekly injection that can help you manage your weight more effectively—when combined with a healthy, reduced-calorie diet and increased physical activity.
At McGorisks Pharmacy, we’re here to support your wellness goals every step of the way.
What Is Mounjaro?
Mounjaro is a weekly self-injectable pen (KwikPen) containing tirzepatide, a dual-action medication that targets key hormones involved in blood sugar regulation and appetite control. By mimicking the effects of naturally occurring GLP-1 and GIP hormones, Mounjaro not only helps regulate insulin and blood glucose levels but also reduces appetite and curbs cravings—supporting sustainable weight loss.
While Mounjaro is primarily used to manage Type 2 Diabetes, it is also licensed in Ireland as a weight management treatment for suitable adults.
How to Use Mounjaro
Mounjaro is simple and convenient to use:
- Delivered via a KwikPen with four fixed doses
- Injected once a week under the skin (abdomen, upper arm, or thigh)
- It should be taken on the same day each week
- The starting dose is 2.5mg for the first 4 weeks, then increased to 5mg
- Your doctor may adjust your maintenance dose (up to 15mg) based on your response
How Effective Is Mounjaro for Weight Loss?
Clinical studies show that Mounjaro is highly effective when used alongside healthy lifestyle changes. In a large study of over 2,500 adults who were overweight or had obesity:
- Average weight loss was 15% over 72 weeks
- Over 85% of users lost at least 5% of their body weight
- Compared to just 3% average weight loss with a placebo
These results make Mounjaro one of the most promising options for medical weight management currently available.
Am I Suitable for Mounjaro?
Mounjaro may be suitable if you:
- Have a BMI ≥ 30 kg/m² (obesity), or
- Have a BMI ≥ 27 kg/m² to < 30 kg/m² and at least one weight-related condition such as high blood pressure, high cholesterol, sleep apnoea, cardiovascular disease, prediabetes, or type 2 diabetes
A valid prescription is required. You can access our online doctor service for just €25, where a registered Irish doctor will assess your suitability and issue a prescription if appropriate.
What Does Mounjaro Cost?
At McGorisks Pharmacy, we provide Mounjaro in cold-chain friendly, discreet packaging with fast nationwide delivery:
- 2.5mg KwikPen (Starter Dose) – €289 (1 month supply)
- 5mg KwikPen – €350 (Typically used in month 2–3)
All needles are included.
Please note: The doctor consultation fee is separate.
Are There Any Side Effects?
As with all medications, Mounjaro may cause side effects.
Very common (affects more than 1 in 10 people):
- Nausea, vomiting, diarrhoea, constipation, abdominal pain
- Low blood sugar (especially when used with insulin or sulphonylureas)
Common (up to 1 in 10):
- Dizziness, fatigue, heartburn, bloating, hair loss, decreased appetite
- Injection site reactions, low blood pressure
Less common to rare:
- Gallbladder issues, pancreatitis, taste changes, severe allergic reactions (rare)
Always speak to your doctor or pharmacist if you experience side effects or have concerns.
Take the Next Step
If you’re ready to explore a new, medically-supported approach to weight loss, Mounjaro could be right for you. With support from our expert pharmacy team and convenient online doctor access, managing your health has never been easier.