With the growing popularity of weight loss injections, many people are asking about Mounjaro — a newer treatment option that has shown promising results for people struggling with obesity or excess weight. But as with any medication, safety is key. So, is Mounjaro safe for weight loss? And how can you ensure you’re using it properly?
At Castle Pharmacy, your safety and wellbeing come first. We offer private Mounjaro weight loss consultations where you’ll receive expert guidance, clinical support, and ongoing monitoring. Here’s what you need to know about this medication, how it works, and how we help you use it safely and effectively.

What Is Mounjaro?
Mounjaro (tirzepatide) is a prescription-only injectable medication originally developed to help manage type 2 diabetes. It works by mimicking two hormones naturally found in the body — GLP-1 and GIP — which help regulate appetite, control blood sugar, and support weight loss.
Thanks to its dual-action mechanism, Mounjaro has been found to be even more effective for weight loss than other GLP-1 medications like Ozempic. Many clinical trials have shown significant weight reduction in people using Mounjaro, especially when combined with dietary changes and lifestyle support.
Is Mounjaro Safe?
When prescribed and monitored correctly, Mounjaro is considered safe for weight loss in eligible patients. Like all medications, it can cause side effects, but most are mild and temporary. Common side effects include:
–> Nausea
–> Vomiting
–> Constipation or diarrhoea
–> Fatigue
–> Loss of appetite
These symptoms often improve over time as your body adjusts to the medication. In rare cases, more serious side effects may occur, such as pancreatitis or gallbladder issues. That’s why it’s essential that Mounjaro is only used under medical supervision.
In our local branches, we carry out a full consultation to assess your medical history, current medications, and suitability for Mounjaro weight loss treatment. We won’t prescribe the injection unless we are confident it is safe and appropriate for you.
The Importance of Professional Support
What makes Mounjaro weight loss treatment safe and effective isn’t just the medication — it’s the support you receive alongside it. Self-medicating, buying from unregulated sources, or starting treatment without supervision can lead to poor outcomes or health risks.
At Castle Pharmacy, we provide a thorough one-to-one consultation before starting treatment, education on how to administer your injection safely at home, and ongoing monitoring to check progress and manage side effects.
We also provide access to advice when you need it, including guidance on nutrition and lifestyle to support your weight loss journey.
We believe in a holistic approach to weight loss. Mounjaro can be incredibly effective, but it works best when combined with healthy eating, regular activity, and behavioural changes — all areas we can help with during your follow-ups.

Who Can Use Mounjaro for Weight Loss?
Mounjaro is not suitable for everyone. At Mendus Pharmacy, we typically consider Mounjaro for individuals who have a BMI of 30 or higher, or a BMI of 27 or higher with weight-related conditions such as high blood pressure, sleep apnoea, or type 2 diabetes.
You must not be pregnant, breastfeeding, or planning pregnancy soon. We’ll also ask about any previous history of pancreatitis, thyroid issues, or other relevant conditions.
If Mounjaro is not suitable for you, we can discuss alternative weight management treatments — both prescription and non-prescription — to help you find the safest route forward.
Take the First Step Safely
If you’re ready to take control of your weight with the support of trained professionals, we’re here to help. Drop in or book your first weight loss appointment and start your journey with confidence, knowing that your safety, comfort, and wellbeing are always our top priority.
Explore your options for safe, medically supervised Mounjaro weight loss — get in touch to book your consultation today.