Mounjaro Injections

Mounjaro (tirzepatide) has demonstrated a strong safety profile through extensive clinical trials and regulatory review. The medication has received approval from major health authorities, including the UK's MHRA, for weight management. The most common side effects are mild to moderate stomach issues like nausea, loose stools or constipation. These happen mainly when increasing your dose, but should disappear on their own. Read more on this here.

Mounjaro mimics the gut hormones GLP-1 and GIP in order to suppress appetite, slow digestion and help you feel fuller for longer, leading to weight loss. It also helps regulate your blood sugar levels, which is helpful for weight and blood sugar management.

Yes, Mounjaro is highly effective for weight loss and is licensed in the UK. Studies show it can help reduce your body weight by over 20% when combined with diet and exercise, compared to just 3% with lifestyle changes alone.

Mounjaro is typically prescribed for individuals with a BMI of 30 or higher, or 27+ with weight-related health conditions. To see if you’re eligible, fill out our medical questionnaire and a clinician will be in touch.

How much weight you could lose varies based on things like your starting weight, lifestyle changes and your body’s response to the medication. On average, people lose 3-5 pounds in the first month. With continued use alongside a healthy diet and exercise, you could notice more significant weight loss.

Mounjaro starts working immediately, but it may take a few weeks for you to see real changes. Some people need higher doses for the best results, but your Voy coach and clinical team will help you find the right dose.

Before using Mounjaro, it's important to be aware of potential side effects. These are usually mild and occur when starting the medication or increasing your dose, as your body adjusts to the treatment. Side effects typically clear up on their own.

The most common side effects of Mounjaro include:

• Loss of appetite
• Nausea and vomiting
• Diarrhoea or constipation
• Headaches or dizziness
• Abdominal pain
• Fatigue
• Burping and flatulence
• Irritation, itching or bruising around where you have injected the medication

It's normal to experience side effects when you start taking Mounjaro or after increasing your dose. If you need support managing side effects, call our support line on 020 3912 9885 and press 2 to speak to a clinician within minutes (available Monday to Friday, 9 AM - 5 PM).

Mounjaro contains the following ingredients:

• Tirzepatide (active and medicinal ingredient)
• Sodium phosphate dibasic heptahydrate
• Sodium chloride
• Concentrated hydrochloric acid, and sodium hydroxide (for pH adjustment)
• Glycerol
• Phenol
• Benzyl Alcohol
• Water

• Month 1: Start with 2.5mg for the first four weeks
• Month 2: Increase to 5mg
• Month 3: Dose increases to 7.5mg
• Month 4: If tolerated, increase to 10mg
• Month 5: Option to increase to 12.5mg
• Month 6: Final increase to 15mg

Maintenance dose

This is the dose that best supports long-term weight loss by reducing hunger and cravings while minimising side effects. Your Voy clinical team will help you find the right level for sustained success.

Your dose is gradually increased to help your body adjust and maximise weight loss, with 15mg being the highest dose tested in clinical trials. However, if you're achieving promising results on a lower dose, feel free to stay at that level – it's all about finding what works best for you.

Each Mounjaro pen contains four weekly doses and includes a flow check before each use. After the fourth dose, the pen locks, so you can no longer access any remaining liquid. We’ll send you a new pen every four weeks to keep your treatment on track.

You can inject Mounjaro in the:

• Abdomen (at least 5cm from the belly button)
• Thighs
• Upper arms

Rotate injection sites each time to reduce discomfort. If you’re using the upper arm, it's best to ask someone else to administer the injection to make it easier.

You’ll need to self-inject Mounjaro once a week. The process involves preparing your pen, checking the flow, selecting your dose, injecting into the recommended areas and safely disposing of the needle.

For more details on how to inject Mounjaro properly, read our detailed guide.

• If 4 days or less have passed, take the missed dose as soon as you remember.
• If more than 4 days have passed, skip the missed dose and continue with your regular schedule.

You can buy Mounjaro from Voy, a CQC registered healthcare provider and online pharmacy, or some private weight loss clinics. In some cases, the NHS may refer you to a specialist weight management service.