Mounjaro
About this product

Mounjaro is a once-weekly injection that contains tirzepatide. It was developed to treat type 2 diabetes, and it can also support weight loss by helping to reduce appetite and keep you feeling fuller for longer. Mounjaro works by acting on two natural hormone pathways involved in hunger and blood sugar control. This can make it easier to manage cravings and reduce portion sizes, alongside healthy eating and regular activity.

How to use

Mounjaro is taken as a once-weekly injection using a pre-filled pen. You inject it just under the skin, not into a muscle or vein. You can inject it into your stomach area, the front of your thigh, or your upper arm. It can be taken with or without food. Try to take it on the same day each week.

Treatment usually starts at a lower dose and increases gradually over time. This helps your body adjust and can reduce side effects. Your clinician will confirm your dosing schedule and show you how to use the pen safely. If you miss a dose or you’re unsure what to do, follow the advice provided with your prescription or contact the Chemist 2 Home team.

Main Ingredients

Mounjaro contains tirzepatide as the active ingredient. The other ingredients are sodium chloride, sodium phosphate dibasic heptahydrate, sodium phosphate monobasic monohydrate, and water for injections. These help keep the medicine stable and suitable for injection.

Side Effects & Cautions

Some people experience side effects when using Mounjaro, especially when starting treatment or increasing the dose. Common side effects include nausea, vomiting, diarrhoea, constipation, reduced appetite, and stomach discomfort. These are often mild to moderate and usually improve as your body adjusts.

More serious side effects are less common but can occur. If you develop ongoing vomiting, severe abdominal pain, signs of dehydration, or feel unwell in a way that concerns you, you should seek medical advice promptly.

Mounjaro is not suitable for everyone. It may not be appropriate if you have certain medical conditions, including a history of pancreatitis, severe digestive problems, or specific endocrine disorders. It’s also not recommended during pregnancy or while breastfeeding.

Before treatment is supplied, a clinician will review your medical history, current medicines, and any relevant risk factors to check that Mounjaro is safe for you. Always follow the dosing instructions provided and do not increase the dose unless advised.

Dosage & directions
Main ingredients
Side effects & cautions

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Hassan Patel

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Pharmacist Prescriber

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