Beginner's guide
Starting Mounjaro Safely
Learn what to expect from your first dose and first month, including food, fluids, side effects and when to seek help.
Start Mounjaro safely →
Prescription weight-loss treatment
Considering Mounjaro treatment?
Mounjaro is a prescription-only weight-loss treatment. Complete an online consultation and a UK-registered prescriber will assess whether it is suitable for you.
Starting Mounjaro: Begin Here
Start with practical guidance on your first dose, the dose schedule and a calorie target that supports treatment.
Dose guide
Mounjaro Dose Schedule
See how the starting dose and gradual dose increases work, with practical guidance for each stage.
Understand the Mounjaro dose schedule →
Calculator
Mounjaro Weight Loss Calculator
Estimate a practical calorie target based on your height, weight, age and activity level.
Use the Mounjaro weight loss calculator →Diet & Lifestyle Articles
Practical guides covering diet, exercise, nutrition and lifestyle habits that may help support healthy and sustainable weight loss alongside treatment.
Side Effects & Safety Articles
Information about common and uncommon side effects, safety considerations and practical ways to manage symptoms during treatment.
07 Oct 2026
Does Mounjaro Affect Botox?
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12 Aug 2026
Mounjaro Heat Sensitivity: Staying Safe in Hot Weather
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03 Jun 2026
Mounjaro Sleep Issues
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03 Jun 2026
Mounjaro Body Aches: Causes and What Helps
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26 May 2026
Mounjaro Taste in Mouth: Causes and What Helps.
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13 Jun 2025
Why Do I Still Feel Hungry on Mounjaro? Causes and How to Fix It
Read more →Usage & Storage
Helpful advice on using treatment correctly, including dosing, injection guidance, storage information and travelling with medication.
Explore More Mounjaro Guides
Quick answer: Mounjaro does not appear to affect Botox directly, and current UK prescribing information does not list a clinically significant interaction between them. The medicines work in different ways, although specific studies of tirzepatide and cosmetic botulinum toxin used...
Mounjaro Heat Sensitivity: Staying Safe in Hot Weather
Quick answer: Mounjaro is not known to make your body unusually sensitive to heat. However, nausea, vomiting or diarrhoea can cause fluid loss, while a reduced appetite may mean you forget to drink. During hot weather, this can make dehydration,...
Can Mounjaro Cause Insomnia? Mounjaro sleep issues can happen for some people, but poor sleep and insomnia are not listed as common side effects in the UK Mounjaro product information. Possible contributors to sleep changes include nausea, reflux, eating too...
Mounjaro Body Aches: Causes and What Helps
Quick answer: Mounjaro body aches are reported by some people, but general body aches and muscle pain are not listed as common side effects in the current UK prescribing information for tirzepatide. Dehydration after nausea, vomiting or diarrhoea, eating much...
Mounjaro Taste in Mouth: Causes and What Helps.
Can Mounjaro Cause a Sweet Taste in the Mouth? Quick answer: A sweet or unusual taste in the mouth can occur while taking Mounjaro. Changed taste is listed as an uncommon side effect of tirzepatide and may affect up to...
Why Do I Still Feel Hungry on Mounjaro? Causes and How to Fix It
Why am I still hungry on Mounjaro? You can still feel hungry on Mounjaro because the medicine is designed to reduce appetite, not remove normal hunger completely. Hunger may be more noticeable early in treatment, towards the end of the...