Mounjaro Tingling Hands and Feet: What to Know (October 2026)

01 · The core answer

Does Mounjaro cause tingling in the hands and feet?

The UK patient leaflet lists a change in skin sensation as an uncommon side effect (up to 1 in 100 people)¹³, so tingling can be linked to the medicine, but it has many other possible explanations too.

Tingling has many possible explanations, and a number of them have nothing to do with Mounjaro. The sensible response is neither panic nor dismissal. It is to describe the symptom clearly to a clinician, check the leaflet that comes with your pen¹³, and let them work out what is going on.

Our page on numbness and tingling on Mounjaro looks at the numbness side of the same question.

02 · What to do

What to note down before you speak to anyone

The more precisely you describe the symptom, the more useful the conversation will be.

Keep the notes for a few days if the symptom is mild and stable. If it is worsening, do not wait to build a long diary before speaking to someone.

03 · Next step

What to do next

If you are already a customer, contact our prescribing team, who provide side-effect support and follow-up as part of ongoing monthly reviews. Do not change or stop your dose on your own because of a new symptom without speaking to them. If you are still weighing up treatment, our weight loss clinic explains how a consultation works.

04 · What we can and cannot say

What the leaflet says about tingling

The UK patient leaflet lists a change in skin sensation as an uncommon side effect (up to 1 in 100 people)¹³, but stories from other users are not evidence. People on any medicine will sometimes notice new symptoms that happen to coincide with treatment. Coincidence is common, and it works in both directions: a symptom can be blamed on the medicine when it has another cause, and a real effect can be dismissed because it is not widely recognised. That is exactly why reporting matters.

The patient information leaflet¹³ and the product's summary of characteristics¹ are the reference points for what is known about the medicine's effects. Read the side-effects section of the leaflet for yourself.

If you notice something that is not described there, you can report it yourself through the MHRA Yellow Card scheme¹⁹. Reports from patients and healthcare professionals are how regulators spot patterns that individual cases cannot show.

05 · How Mounjaro works

What Mounjaro does in the body

Mounjaro contains tirzepatide, which activates two natural gut-hormone receptors at once: GIP and GLP-1¹. Together these help regulate appetite, slow how quickly the stomach empties, and improve the way the body responds to insulin¹.

In practice, most people feel fuller sooner and less hungry between meals, which supports a reduced-calorie diet¹. That is the intended effect, and it is the reason a prescriber will ask how you are eating and drinking when you report any new symptom.

The point is simply that treatment changes appetite and eating habits, and a good clinical conversation covers those changes alongside the symptom itself.

Mounjaro is a once-weekly prescription medicine, supplied alongside a reduced-calorie diet and increased physical activity¹. If your intake has dropped sharply, tell your prescriber. They would rather hear about it early than late.

06 · Itchy hands and feet

Itchy hands and feet on Mounjaro

Itching in the hands and feet is a separate sensation from tingling, and the same cautious approach applies. The UK patient leaflet lists allergic reactions such as rash, itching or eczema as a common side effect (up to 1 in 10 people)¹³, so describe itching to a clinician rather than explain it yourself.

Itching has many everyday causes that have nothing to do with a prescription: dry skin, soaps and detergents, heat, new products, and skin conditions that were already there. It can also appear alongside other changes. What matters for your prescriber is the pattern. Is there a rash? Is it in one place or spread across the body? Did it begin after a new product, a change in routine or a dose change?

Check the patient information leaflet¹³ for the current description of skin reactions, and pay particular attention to any guidance there on allergic reactions. If itching comes with swelling of the face, lips or tongue, or difficulty breathing, treat it as an emergency and get medical help straight away.

For milder, persistent itching, speak to your prescriber or GP, and consider reporting it via Yellow Card¹⁹. Avoid adding several new creams or remedies at once, because that makes it harder to see what is helping or harming.

If your question is about a prickling feeling on the skin more generally, our page on skin tingling on Mounjaro goes into that sensation in more detail.

07 · Diabetes and blood sugar

Tingling, diabetes and blood sugar: why you should not self-diagnose

A list of signs from a website is a poor substitute for a test.

If you already have type 2 diabetes, Mounjaro is licensed for it¹, and tingling should be raised with your diabetes team or GP. They hold your history, your blood results and your other medicines. That context is what makes an explanation possible.

If you take insulin or a sulfonylurea, the doses of those medicines may need adjusting when you start Mounjaro, because of the risk of low blood sugar. Do not make that adjustment on your own. Ask the clinician who prescribes them. Never stop or change diabetes medicines because of something you read online.

If you do not have diabetes and are wondering whether tingling means you might, the practical step is the same: ask your GP whether testing is appropriate. A blood test gives a real answer where symptom lists give only guesses.

Does tingling mean low sugar? Does it mean high sugar? Either might be proposed online, but neither can be confirmed or ruled out by how a symptom feels. If you have a glucose monitor because you have diabetes, use it as your clinician has advised and share the readings. If you do not have one, do not buy one and start self-testing without guidance.

Keep taking any medicines as prescribed unless a clinician tells you otherwise, and read the leaflet's guidance¹³ on what to do if you feel unwell.

08 · When to get urgent help

When should you worry about tingling in your hands and feet?

Worry is warranted when the symptom is sudden, severe, getting worse, affecting one side, or accompanied by weakness. In those cases do not wait for a routine appointment or an email reply. Get medical help straight away, using NHS urgent advice or emergency services.

Get medical help straight away if tingling or numbness comes with any of the following:

• Weakness, drooping or loss of control in an arm, leg or the face
• Difficulty speaking, confusion or sudden vision changes
• Loss of bladder or bowel control, or numbness in the saddle area
• A severe headache that is unusual for you
• Swelling of the face, lips or tongue, or difficulty breathing
• Chest pain, or a feeling of pressure across the chest

For tingling that is mild but persistent, book a routine appointment with your GP or contact your prescriber within the next few days. Do not leave a symptom that is steadily changing or spreading. Serious side effects are uncommon but need urgent attention. Seek immediate medical help for: severe, persistent stomach pain that may spread to your back, with or without vomiting (possible pancreatitis); pain in the upper right abdomen, fever or yellowing of skin/eyes (possible gallbladder problems); or signs of a severe allergic reaction such as swelling of the face or throat and difficulty breathing.

Tingling that clearly comes on after you have been sitting in an awkward position, leaning on an elbow or wearing tight footwear and then fades quickly with movement is a different matter from tingling that arrives without a cause and stays. Still, if you are unsure which category yours falls into, ask.

Whatever the outcome, consider reporting your experience through the Yellow Card scheme¹⁹. You do not need to prove a link to the medicine to make a report.

09 · Related sensations

Cold, shaky or tingly: related symptoms

Tingling is rarely the only sensation people ask about. Some describe cold hands and feet, others a shaky feeling, and others a general buzzing.

If your hands and feet feel cold rather than tingly, see our guide on whether Mounjaro causes cold hands and feet, or the practical tips in our cold hands and feet management guide. For GLP-1 medicines more broadly there is a page on cold hands and feet with GLP-1 treatment, and one on Mounjaro and cold feet specifically.

If the main feeling is trembling rather than pins and needles, read Mounjaro and shaking.

Grouping symptoms is useful for your clinician too. Tell them everything you have noticed, even things that seem unrelated. A cluster of changes can tell them more than any single symptom alone, and you do not need to decide in advance which details matter.

10 · Keeping a symptom diary

How to keep a useful symptom diary

A short, honest diary turns a vague worry into information a clinician can act on. It does not need to be elaborate. A notes app, or our free GLPTrackr companion app for tracking a GLP-1 journey, is enough.

Record these points each day the symptom appears:

• What you felt and where: hands, feet, fingers, toes, one side or both
• How strong it was, in your own words, from barely noticeable to very distracting
• What you were doing when it began and how long it lasted
• Your injection day, your current dose and whether it recently changed
• What you ate and drank that day, and how your appetite was
• Any other new symptoms, however small
• Anything that eased it or made it worse

Be factual rather than interpretive. Write "tingling in both feet in the evening, eased when I walked" rather than "side effect of my injection". Your clinician will do the interpreting, and a neutral record helps them avoid being led towards a conclusion the evidence does not support.

Take the diary to your appointment or send it with your message to the prescribing team. If symptoms stop, keep noting that too, since a symptom that comes and goes is itself informative.

11 · Support and access

Getting support while on treatment

Support does not stop once your pen arrives. Customers of EverydayMeds receive ongoing monthly reviews, dose-titration and follow-up assessments from the prescribing team, plus side-effect support. Treatment is supplied only after a free online consultation reviewed by a GPhC-registered prescriber, and repeat orders re-check suitability. Nothing ships automatically.

Our support team is available Monday to Friday, 9am to 5pm, by email at support@everydaymeds.co.uk, through the account portal chat or by phone on 0333 207 0413. Outside those hours, use NHS urgent services for anything that cannot wait.

Mounjaro is also available on the NHS, but access is being phased in over several years. NICE recommends it for adults with a BMI of at least 35 plus at least one weight-related condition, and the primary-care rollout began in June 2025 with the highest-need groups first⁴⁶. Whichever route you use, report new symptoms to the clinician responsible for your care.

If you buy from us, our product is sourced through official LillyDirect supply, with genuine KwikPens delivered free next day in temperature-controlled packaging. Mounjaro is a prescription-only medicine; this page is information, not a substitute for medical advice, and individual results vary.