In clinical studies, people using Mounjaro (tirzepatide 15mg) alongside healthy lifestyle changes lost an average of around 21% of their body weight over 72 weeks, and up to 25% in some cases.¹

Results vary for everyone, and progress looks different from person to person. Some people notice early changes in appetite or “food noise,” while others see results build gradually over time.

Our medical team focuses on what works for you. It’s all about helping you find a comfortable, sustainable approach that fits your body, your goals and your lifestyle.

¹ SURMOUNT-1, 72-week study of adults with obesity using Mounjaro (tirzepatide 15mg). Individual results vary.

With each new order, you’ll receive your next pen at the right strength for you.

Over time, some people choose to reduce their dose to maintain results or manage side effects.

After every use, dispose of the needle into the sharps bin.

After the 4 doses, and once the needle has been removed, the pen can be disposed of in your household waste or the sharps bin. When full, your sharps bin can be collected for disposal by your local council.

Once you’ve started treatment, you’ll be able to purchase more sharps bins with new orders.

While Mounjaro has helped many people reach their health goals, it’s crucial to understand what to watch for along the way. Below, we’ve outlined the most common and rare side effects, along with guidance on when to seek help.

These side effects may occur in more than 1 in 10 people and usually go away over time. They are most common when first starting Mounjaro and when increasing the dose.

Examples: feeling sick (nausea), vomiting, diarrhoea, stomach pain, constipation.

These side effects may occur in up to 1 in 10 people.

Examples: dizziness, a reduction in blood pressure, indigestion, heartburn, bloating, burping, flatulence, fatigue, injection site reactions (redness, swelling), gallstones, allergic reaction (e.g, rash, itching, and eczema), low blood pressure, hair loss.

These side effects may occur in up to 1 in 100 people.

Examples: Injection site pain, changed sense of taste, increased heart rate.

SERIOUS: acute pancreatitis. This is inflammation of the pancreas that can cause severe stomach pain which can radiate to your back that doesn’t go away. Most patients feel very ill with pancreatitis and may present with severe vomiting (i.e., vomiting 3 times or more in one day, or having coffee ground or blood in the vomit). You should call 999 or attend A&E right away if you experience these symptoms.

SERIOUS: acute gallbladder disease. This is inflammation of the gallbladder (also known as cholecystitis) that can cause a sudden sharp pain in the upper right side of your stomach that radiates towards your right shoulder. The affected area of the stomach will feel very tender and deep breathing can make the pain worse. You should call 999 or attend A&E right away if you experience these symptoms.

These side effects may occur in up to 1 in 1000 people.

SERIOUS: severe allergic reaction (anaphylaxis). This can present as difficulty breathing, swelling of lips, tongue and/or throat, difficulty swallowing, rapid heartbeat. You should call 999 or attend A&E right away if you experience these symptoms.

If you have any questions about side effects or how to manage them, we’re here to support you.