Mounjaro for weight loss: Everything you need to know.
The world of weight loss and injectable weight loss treatments such as Mounjaro can often feel overwhelming.
With so much information available, it’s hard to know what’s reliable and what’s not.
At Kamsons Pharmacy, we aim to simplify the process for you, providing a clear, reliable path to help you achieve and maintain your weight loss goals.
In this comprehensive guide, we’ll cover everything you need to know about Mounjaro, from how it works to the benefits, side effects, and how to get started.

What is Mounjaro?
Mounjaro is an injectable prescription-only medication designed to assist with weight loss when combined with regular exercise and a healthy, balanced diet. Initially approved for the treatment of type 2 diabetes, in November 2023 when the Medicines and Healthcare products Regulatory Agency (MHRA) in the UK approved it for use in overweight patients. The medication has been proven to help individuals achieve significant weight loss by addressing multiple factors that influence body weight, such as appetite control and blood sugar regulation.
How Does Mounjaro Work?
Mounjaro works by activating two key pathways in the body: GIP and GLP-1. Both of these pathways play essential roles in regulating insulin and blood sugar, which is why the medication is particularly effective for those with type 2 diabetes. By targeting these pathways, Mounjaro improves insulin regulation, helping to stabilise blood sugar levels.

One of the key effects of Mounjaro is appetite suppression. It promotes feelings of fullness after eating smaller portions, which can significantly reduce food cravings and overeating. This mechanism helps individuals maintain a calorie deficit, which is critical for weight loss. In addition, Mounjaro can increase energy levels, making it easier to stay active and engage in physical exercise—another vital component of a successful weight loss strategy.
It’s important to note that while Mounjaro is effective in supporting weight loss, it should always be used in combination with a healthy, balanced diet and regular exercise for the best results.
Who Can Take Mounjaro for weight loss?
Mounjaro is suitable for individuals with a body mass index (BMI) of 30 or above. Alternatively, those with a BMI of 27 or above, combined with a weight-related health condition such as high blood pressure or type 2 diabetes, may also be eligible to use Mounjaro.
How Do You Take Mounjaro?
Mounjaro is administered via an easy-to-use pre-filled pen. The pen is designed for self-administration, and you’ll be guided on how to use it by your Kamsons pharmacist. It is injected once a week into the fatty tissue under the skin (subcutaneously). You can administer the injection in several areas, including the stomach, thigh, or upper arm.
Your dose will depend on your specific weight loss journey, your personal goals, and how your body is responding to the medication. Your Kamsons pharmacist will tailor the dosage and help monitor your progress to ensure it is effective and safe.
During your initial consultation, your pharmacist will thoroughly explain the procedure, demonstrate how to use the pen, and address any concerns you may have. They will be available to support you throughout your treatment journey.
What If I Miss an Injection?
If you forget to take your Mounjaro injection, don’t worry. You can administer your dose up to 96 hours (4 days) after the missed dose. However, if it’s been longer than this, you should skip the missed dose and wait until your next scheduled injection. It’s important not to double the dose as this could be dangerous.
If you’re unsure about anything, please reach out to your Kamsons pharmacist for guidance.
Are There Any Side Effects?
Like all medications, Mounjaro can cause side effects.

Most side effects are mild and temporary, especially when you first start the medication. Common side effects include:
- Nausea
- Diarrhoea
- Decreased appetite
- Vomiting
- Constipation
- Indigestion
- Stomach pain
Some individuals may experience low blood sugar (hypoglycaemia) or fatigue. Severe allergic reactions and kidney problems are very rare, but it’s important to be aware of any unusual symptoms.
If you experience any side effects that are concerning or persistent, please contact your pharmacist. In case of severe reactions, call NHS 111 or 999 for urgent medical help.
Exercise and Diet: Key Components for Success
While Mounjaro can be incredibly effective in supporting weight loss, it’s essential to remember that it should be used alongside a healthy lifestyle. Regular physical activity and a balanced, nutritious diet are crucial for achieving and maintaining weight loss.
Exercise: Aim for at least 150 minutes of moderate exercise per week, which can be broken down into smaller sessions. Activities such as brisk walking, swimming, cycling, or yoga are great options. Choose exercises you enjoy, as this will help you stay motivated and consistent.
Diet: A well-balanced diet is equally important. Focus on eating nutrient-dense foods, including plenty of fruits and vegetables, lean protein, and whole grains. Reducing processed foods, sugary drinks, and high-calorie snacks will also help you stay within a healthy calorie range. The NHS Better Health programme offers a range of tools and apps to help you stay on track with your diet and exercise goals.
At Kamsons Pharmacy, our pharmacists are always available to provide tailored advice to help you with your exercise and diet plan, ensuring you get the best possible results alongside your Mounjaro treatment.
The Benefits of Weight Loss

Achieving and maintaining a healthy weight has numerous benefits, both mental and physical. When you reach a healthy weight, you significantly reduce the risk of developing serious health conditions, such as type 2 diabetes, heart disease, and stroke. Not only does this lower your risk of life-threatening illnesses, but it also improves your overall quality of life. Many people experience increased energy levels, allowing them to feel more active and engaged in daily activities. Additionally, losing weight can improve sleep patterns, helping you wake up feeling more refreshed and ready to take on the day. On a mental and emotional level, maintaining a healthy weight often leads to better mood stability, reduced stress, and enhanced self-confidence.
We’ve gone into more detail on these benefits here, so you can better understand how weight loss can contribute to a healthier, more fulfilling life.
What Can I Expect from the Weight Loss Service?
At Kamsons Pharmacy, we offer a personalised weight loss programme that’s designed to help you lose weight safely and effectively under the supervision of experienced healthcare professionals. Our programme isn’t just about providing you with medication; we offer a comprehensive approach to weight loss that includes:
- Personalised Guidance: Your journey begins with an initial consultation with a Kamsons pharmacist who will assess your medical history, goals, and suitability for Mounjaro. They will provide expert advice and explain every step of the process.
- Ongoing Support: Once you begin Mounjaro, you’ll have monthly follow-up consultations to ensure that the treatment is working effectively for you. Your pharmacist will monitor your progress, adjust the dosage if necessary, and provide lifestyle tips to support your success.
- Holistic Approach: We believe that weight loss is not just about taking medication; it’s about making long-term lifestyle changes. Our pharmacists will work with you on your diet, exercise routine, and mindset, ensuring that your weight loss journey is sustainable and healthy.
How Can I Start my weight loss journey with Kamsons?
Starting your weight loss journey with extra support from Kamsons is simple. Begin by filling out our quick online consultation form. Once we receive your consultation, one of our expert pharmacists will review your information carefully. This ensures that our service is safe and appropriate for your specific needs.
After your consultation is approved, we will send your prescription to your chosen Kamsons Pharmacy branch. We’ll notify you when your medication is ready for collection. From there, you’ll have a full consultation with one of our pharmacists, who will provide detailed guidance on how to use the medication effectively and safely. Following the initial consultation you will have monthly in person check ins with your pharmacist.