Box of Mounjaro (tirzepatide) injection pens for diabetes and weight management

Mounjaro

Price range: £124.99 through £199.99

Mounjaro (tirzepatide) is a once-weekly injectable medication for type 2 diabetes and weight management, offering dual hormone action for improved glycemic control and significant weight loss.
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Mounjaro (tirzepatide) is a once-weekly injectable prescription medication developed to support effective weight management in adults living with obesity or those who are overweight and have related health conditions such as type 2 diabetes, high blood pressure, or high cholesterol. It belongs to a new class of medications that help regulate appetite, improve metabolic function, and promote meaningful, sustained weight loss.

With a mechanism that targets two natural gut hormones involved in appetite and insulin control, Mounjaro is suitable for individuals who have struggled to lose weight through diet and exercise alone. When used as part of a comprehensive weight loss plan, it can significantly improve both physical health and quality of life.

How It Works

Tirzepatide, the active ingredient in Mounjaro, acts on both the GIP and GLP-1 receptors in the body—hormones that help regulate insulin release and appetite. By enhancing the body’s natural satiety response, slowing gastric emptying, and reducing hunger signals, Mounjaro helps patients eat less without extreme restriction. These effects lead to gradual and sustained weight loss while also supporting blood sugar balance and improved insulin sensitivity.

This dual-hormone activity distinguishes Mounjaro from older GLP-1-only treatments, making it a powerful tool for patients needing metabolic support and weight reduction.

Why Choose Mounjaro

  • Targeted Weight Loss Aid: Designed for individuals who are overweight or obese and need medical support to manage their weight.

  • Dual Hormone Mechanism: Offers enhanced appetite control and metabolic benefits compared to single-hormone treatments.

  • Once-Weekly Injection: Simple and discreet administration helps promote adherence and long-term results.

  • Broad Health Benefits: May also support improvements in blood sugar, cholesterol, and cardiovascular risk factors when used as part of a weight loss plan.

Important Note

Mounjaro is not a substitute for healthy lifestyle choices, but it can significantly enhance the results of a weight management plan when diet and exercise alone are insufficient. It must be prescribed and monitored by a healthcare professional. This medication is not suitable for those with a history of certain thyroid or endocrine conditions. Follow all dosage instructions carefully and attend regular medical reviews to track progress and adjust treatment as needed.

Directions

Please refer to the medication’s patient information leaflet before starting any new medication.

  • Administration: Inject subcutaneously once a week, on the same day each week, at any time of the day, with or without meals.

  • Injection Sites: Abdomen, thigh, or upper arm. Rotate injection sites weekly.

  • Dosage Titration: Start with 2.5 mg once weekly for 4 weeks. Increase to 5 mg once weekly. Further increases can be made in 2.5 mg increments every 4 weeks up to a maximum of 15 mg once weekly, as tolerated and advised by your healthcare provider.

  • Missed Dose: If a dose is missed, administer as soon as possible within 4 days. If more than 4 days have passed, skip the missed dose and resume the regular schedule.

Ingredients

Active Ingredient:

  • Tirzepatide (2.5 mg, 5 mg, 7.5 mg, 10 mg, 12.5 mg, or 15 mg per 0.6 mL dose)

Other Ingredients:

  • Sodium phosphate dibasic heptahydrate

  • Benzyl alcohol

  • Glycerol

  • Phenol

  • Sodium chloride

  • Sodium hydroxide

  • Concentrated hydrochloric acid

  • Water for injections

Side Effects

Common side effects may include:

  • Nausea

  • Vomiting

  • Diarrhea

  • Decreased appetite

  • Constipation

Serious (rare) side effects:

  • Pancreatitis

  • Gallbladder disease

  • Kidney problems

  • Allergic reactions

  • Hypoglycemia (especially when used with other diabetes medications)

Stop the medicine and seek medical attention if serious side effects occur.

Warnings

  • Allergies: Do not use if allergic to tirzepatide or any of the injection components.

  • Medical Conditions: Not recommended for individuals with a personal or family history of medullary thyroid carcinoma or multiple endocrine neoplasia syndrome type 2.

  • Pregnancy and Breastfeeding: Not recommended during pregnancy or breastfeeding. Consult your healthcare provider.

  • Drug Interactions: Inform your doctor of all medications you are taking, especially insulin or other antidiabetic drugs.

  • Surgery: Discontinue Mounjaro at least one week before any scheduled surgery.

  • You may notice some changes to your appetite or digestion within the first week or two. However, it can take several weeks to see noticeable improvements in blood sugar levels or weight loss. Stick with it, and follow your diet and exercise plan for the best results.

  • Yes, but only if it's prescribed for weight management. Mounjaro is approved for adults with a BMI of 30 or more, or 27 or more with a weight-related condition. A healthcare professional will assess if it’s the right option for your needs.

  • If you miss a dose and it’s been less than 4 days (96 hours), take it as soon as possible. If more than 4 days have passed, skip the missed dose and take your next one on your usual day. Never take two doses at once.

  • No, Mounjaro works best when used alongside healthy lifestyle changes. Eating well and staying active will help maximise results and support your overall health.

  • Yes, if it continues to be effective and well-tolerated. Your doctor or nurse will monitor your progress and adjust the dose if needed. Don’t stop using it without speaking to a healthcare professional.

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