Independent UK medicine guidance
Wegovy side effects: interactive UK body map
Most people who use Wegovy get at least one side effect early on, and for most it is a stomach or bowel symptom that eases as the dose settles. This page maps every effect listed in the current UK Wegovy leaflet to the part of the body it affects, explains what is normal, what may help, and which symptoms need a call to NHS 111 or 999.
Semaglutide, weekly injectionLeaflet revised June 2026Checked 20 October 2026Author: Nick Johnson, Medstack Ltd
Short answer. The UK leaflet lists nausea, vomiting, diarrhoea, constipation, stomach pain, headache and tiredness as very common (more than 1 in 10 people). Dizziness, indigestion, reflux, bloating, wind, gallstones, hair loss, taste changes and injection site reactions are common (up to 1 in 10). The serious ones to know are acute pancreatitis (uncommon), kidney or bladder stones (uncommon), severe allergic reaction (rare) and a very rare eye condition called NAION that can cause painless loss of vision.
Stop injecting and get urgent help for severe stomach pain that does not go away, and call 999 for swelling of the face, lips, tongue or throat or trouble breathing. This page cannot diagnose you. It summarises the official leaflet and NHS guidance.
Explore Wegovy side effects by body area
Choose a point on the figure, or a body area from the list. Each panel shows what the leaflet says can happen there, how often it was reported, what tends to ease the mild version, and the point at which it stops being a side effect to manage at home. Frequency bands are taken from the Wegovy FlexTouch patient leaflet revised in June 2026.
Select a body area to begin
Pick a body area to start
Tap a point on the figure or choose an area from the list. You will see what the leaflet says can happen there, how often it was reported, what helps the mild version and when to get help.
General information only, not medical advice. It cannot tell you what is causing a symptom. Talk to your prescriber, pharmacist or GP if something worries you, use NHS 111 for urgent concerns and call 999 in an emergency.
Head, headache & dizziness
Headache: very common • dizziness: common- What can happen
- Headache and feeling weak or tired are in the very common band, affecting more than 1 in 10 people. Feeling dizzy is common, and the leaflet notes it is mainly a first three months issue. Light-headedness on standing up is listed separately as uncommon because it comes from a drop in blood pressure rather than the medicine acting on the brain. Headache, shakiness, sweating, a racing pulse and confusion together can also be warning signs of low blood sugar, which is common in people with diabetes on Wegovy and uncommon in people without diabetes.
- What tends to help
- Headaches on Wegovy often track with eating and drinking less. Regular fluids and not skipping meals entirely are the first things to check. Stand up slowly if you are dizzy, and do not drive or use machinery until it passes. The leaflet says so explicitly.
- When to get help
- A headache that is sudden and severe, comes with vision changes, or does not respond to normal measures needs assessment on its own merits. If you use insulin or a sulfonylurea as well, follow your hypo plan and speak to your diabetes team. Someone who is drowsy, confused or not responding normally needs 999.
Source: Wegovy FlexTouch patient leaflet, eMC • NHS: low blood sugar
Eyes & vision
Diabetic eye complications: common (diabetes only) • NAION: very rare- What can happen
- Two separate things sit here. First, in people with diabetes, a fast improvement in blood sugar can temporarily worsen diabetic retinopathy; the leaflet lists complications of diabetic eye disease as a common serious effect for that group. Second, for anyone on semaglutide, there is a very rare condition called non-arteritic anterior ischaemic optic neuropathy, or NAION, which can cause painless loss of sight in one eye. The leaflet puts it at up to 1 in 10,000 people.
- What tends to help
- Nothing you can do at home treats either of these. If you have diabetic eye disease, tell your prescriber before starting and keep your screening appointments.
Urgent: sudden loss of vision, or eyesight getting worse quickly or gradually, needs an urgent same-day call to your doctor or NHS 111. The leaflet says you will be referred to an eye specialist and may need to stop treatment.
Source: Wegovy FlexTouch patient leaflet, eMC • NHS: diabetic retinopathy
Hair, skin & taste
Hair loss, taste change & skin sensation: common • severe allergy: rare- What can happen
- Hair loss, a change in the way food or drink tastes, and altered skin sensation (tingling, numbness or heightened sensitivity) are all common. The June 2026 leaflet adds that hair loss and changed skin sensation may happen more often on the 7.2 mg dose, and that the skin sensation change usually goes away over time. Rash, itching and eczema are listed as forms of allergic reaction that can also occur.
- What tends to help
- Hair shedding with rapid weight loss is usually temporary and linked to the weight change as much as the medicine. Eating enough protein and not crash dieting on top of the injection are reasonable steps. Report persistent numbness or tingling to your prescriber rather than waiting it out.
Call 999 if a rash comes with swelling of the face, lips, tongue or throat, wheezing or difficulty breathing.
Read the full guide to Wegovy hair loss and regrowthFace, throat & breathing
Severe allergic reaction: rare (up to 1 in 1,000)- What can happen
- Anaphylaxis and angioedema are rare but listed. The leaflet's own warning signs are breathing problems, swelling of the face, lips, tongue or throat with difficulty swallowing, wheezing, a fast heartbeat, pale and cold skin, and feeling dizzy or weak.
Call 999 now. Do not finish reading this page first. A severe allergic reaction is a medical emergency and is treated in hospital.
Source: NHS: anaphylaxis • Wegovy FlexTouch patient leaflet, eMC
Heart rate & blood pressure
Low blood pressure & fast heartbeat: uncommon- What can happen
- Low blood pressure, feeling dizzy or light-headed when you stand or sit up, and a faster heartbeat are all uncommon (up to 1 in 100). A fast heartbeat can also be one of the signs of low blood sugar or of a severe allergic reaction, so context matters. Semaglutide is separately licensed in the UK to reduce the risk of heart attack and stroke in adults with existing heart disease, so a raised resting pulse is a known effect rather than a sign the medicine is harming the heart.
- What tends to help
- Sit or lie down if you feel faint and get up slowly. Check you are not running on very little food and fluid; dehydration from vomiting or diarrhoea drops blood pressure. If you take blood pressure tablets, your doctor may need to review the dose as you lose weight.
- When to get help
- A pulse that stays noticeably fast at rest, palpitations, or repeated fainting need prescriber advice. Chest pain, collapse or severe breathlessness are 999 symptoms.
Stomach & pancreas
Nausea, vomiting & stomach pain: very common • pancreatitis: uncommon- What can happen
- Nausea, vomiting and stomach pain are very common, and the leaflet says they usually go away over time. Indigestion, bloating, burping, reflux and an inflamed stomach lining (gastritis) are common. A delay in stomach emptying and a rise in pancreatic enzymes on a blood test are uncommon. Acute pancreatitis, inflammation of the pancreas, is uncommon (up to 1 in 100) and is the reason the leaflet tells you to stop and get urgent help for severe pain.
- What tends to help
- Smaller meals eaten slowly, stopping before you feel full, lower fat food, staying upright for a while after eating and sipping fluids little and often. Do not take the next dose step until the current one has settled, and do not increase on your own. The schedule is your prescriber's call.
Pancreatitis warning sign: severe, persistent pain in the stomach area, with or without nausea and vomiting, which may spread to your back. Stop using Wegovy and seek urgent medical help. In January 2026 the MHRA strengthened this warning across all GLP-1 medicines after rare reports of necrotising and fatal pancreatitis; if pancreatitis is confirmed the medicine should not be restarted.
Read the full guide to nausea and vomiting • Pancreatitis warning signsSource: MHRA Drug Safety Update, January 2026 • Wegovy FlexTouch patient leaflet, eMC
Gallbladder & liver
Gallstones: common • raised bilirubin: uncommon- What can happen
- Gallstones are common. Losing weight quickly by any method raises gallstone risk, and the trials found the same pattern with semaglutide. The typical symptom is a severe pain under the right ribs or in the upper stomach, often after eating, sometimes with fever or being sick. Separately, an increase in bilirubin is uncommon; the sign to watch for is jaundice, a yellowing of the skin or the whites of the eyes.
- When to get help
- This page cannot tell gallstone pain from pancreatitis or anything else. Treat any severe upper abdominal pain as needing urgent assessment, and treat jaundice as needing a same-day call to your GP or NHS 111.
Urgent: contact NHS 111 for severe upper abdominal pain, fever with pain, or yellowing skin or eyes. Use 999 or A&E if someone is acutely very unwell.
Read the full guide to Wegovy and gallstonesSource: Wegovy Summary of Product Characteristics, eMC • NHS: gallstones
Kidneys, bladder & hydration
Kidney or bladder stones: uncommon • dehydration: a leaflet warning- What can happen
- Kidney or bladder stones are an uncommon serious effect. The leaflet describes back or lower abdominal pain, difficulty passing urine or a change in urine colour as the signs. The bigger everyday issue is fluid loss: nausea, vomiting and diarrhoea can dehydrate you, and the leaflet says this matters especially if your kidneys are already not working well, because dehydration can worsen kidney function.
- What tends to help
- Drink regularly through the day even when you have no appetite; the appetite suppression that makes Wegovy work also removes the thirst cues many people rely on. Pale urine is the simple check. A pharmacist can advise on oral rehydration sachets if you have had a run of vomiting or diarrhoea.
Use NHS 111 if you cannot keep fluids down, are passing much less urine than usual, or have back or flank pain with blood in your urine or difficulty urinating.
Read the full guide to dehydration and staying hydratedSource: Wegovy FlexTouch patient leaflet, eMC • NHS: dehydration
Bowel & digestion
Diarrhoea & constipation: very common • bowel obstruction: frequency not known- What can happen
- Diarrhoea and constipation are both very common, and it is normal to swing between the two in the first weeks. Wind, bloating and burping are common. The leaflet also lists bowel obstruction with a frequency that cannot be estimated: a severe form of constipation with stomach ache, bloating and vomiting.
- What tends to help
- For constipation, fluids first, then gentle daily movement and fibre added gradually rather than all at once; a pharmacist can suggest a suitable laxative, and you should not combine several on your own. For diarrhoea, replace fluids in small regular amounts and go easy on fatty and very sweet food.
- Before your next dose increase
- If bowel symptoms have not settled on the current step, talk to your prescriber before the next planned increase. Staying an extra four weeks at a dose is a normal option.
Use NHS 111 if you have not opened your bowels for several days and now have stomach pain, swelling and vomiting, if there is blood in your stool, or if diarrhoea is leaving you dehydrated despite rehydration.
Read the full guide to constipation relief • Diarrhoea and dehydrationSource: Wegovy FlexTouch patient leaflet, eMC • NHS: constipation
Hips & bones
Hip fractures: rare- What can happen
- Hip fractures appear in the rare band of serious effects (up to 1 in 1,000). This is a newer addition to the semaglutide leaflet. The likely mechanism is indirect: bone density can fall during large weight loss, and falls are more likely when someone is dizzy or dehydrated.
- What tends to help
- Keeping up protein intake, doing some weight-bearing exercise and getting enough calcium and vitamin D are the standard measures during substantial weight loss. If you are over 65, have osteoporosis or have had a fracture before, mention it to your prescriber.
- When to get help
- Hip or groin pain after a fall, or an inability to put weight on the leg, needs A&E or 999.
Source: Wegovy FlexTouch patient leaflet, eMC • NHS: osteoporosis
Injection site
Injection site reactions: common • injection site pain: uncommon- Where Wegovy is injected
- The leaflet names three areas: the upper arms, the stomach (keeping 5 cm from the belly button) and the upper legs. With this panel open the figure shows front and back views: the syringe markers point to the stomach and thighs on the front and to the rear of the upper arm on the back, with the shaded zones marking the areas the leaflet means. The back of the arm is the site most people need help reaching. You can stay in the same area week to week but not the same spot. For the 7.2 mg dose, if it is given as three 2.4 mg injections on the same day, each one needs a fresh needle and should be at least 5 cm from the others.
- What can happen
- Redness, itching, a small lump or tenderness where the needle went in are common and usually short-lived. On darker skin, redness is harder to see, so go by warmth, swelling and texture instead.
- What tends to help
- Let the pen sit out of the fridge for a few minutes before injecting, use a new needle every time, and rotate sites. Never share a pen or reuse a needle.
- When to get help
- A reaction that is spreading, hot, very painful, leaking fluid or not settling after a few days needs a pharmacist or prescriber to look at it.
Call 999 if an injection is followed by throat swelling, wheezing or breathing difficulty.
Source: Wegovy FlexTouch patient leaflet and instructions for use, eMC
Quick safety check
Four yes or no questions that point you to the right UK next step. Nothing is stored and nothing personal is asked. It cannot work out what is causing a symptom.
What the frequency words mean
These bands describe how often an effect was reported across trial populations. They do not predict what will happen to you, and a "not known" entry means the effect was seen after the medicine reached the market but the numbers are not good enough to estimate a rate. Some entries only apply to people with diabetes, and the panels above say so where that is the case.
Every listed Wegovy side effect at a glance
| Frequency | Side effects (Wegovy FlexTouch leaflet, revised June 2026) |
|---|---|
| Very common | Headache, nausea, vomiting, diarrhoea, constipation, stomach pain, feeling weak or tired |
| Common | Dizziness, indigestion, burping, wind, bloating, gastritis, reflux or heartburn, gallstones, hair loss, injection site reactions, taste changes, changed skin sensation, low blood sugar in people with diabetes; serious: complications of diabetic eye disease |
| Uncommon | Low blood pressure, light-headedness on standing, fast heartbeat, raised pancreatic enzymes, delayed stomach emptying, low blood sugar in people without diabetes, raised bilirubin (jaundice), injection site pain; serious: acute pancreatitis, kidney or bladder stones |
| Rare | Severe allergic reactions (anaphylaxis, angioedema), hip fractures |
| Very rare | NAION, an eye condition that can cause painless loss of vision |
| Not known | Bowel obstruction |
Dose matters for two of these. The leaflet notes hair loss and changed skin sensation may be more frequent on the 7.2 mg dose than on 2.4 mg. It also lists feeling dizzy as a mainly first three months effect, and says the very common digestive effects usually go away over time.
Low blood sugar is listed twice for a reason: it is common in people with diabetes, especially those also on insulin or a sulfonylurea whose doses may need reducing before starting, and uncommon in people without diabetes. Warning signs include cold sweat, cool pale skin, headache, fast heartbeat, feeling sick or very hungry, vision changes, sleepiness, anxiety, confusion, poor concentration and shaking.
Why side effects cluster around dose increases
There is no exact timetable for one person. Do not move up early, and do not skip a step to "get it over with". If a missed dose has put you off schedule, the leaflet's five day rule is explained in our missed dose guide, and the full schedule is on the dose steps page.
What helps with the mild ones
Nausea & vomiting
Eat smaller amounts more often, chew slowly and stop before you feel full. Lower fat, blander and colder foods are often easier than rich, fried or spicy meals. Stay upright after eating. Sip fluids through the day rather than drinking a lot in one go. Injecting in the evening suits some people because the peak of nausea passes overnight; ask your prescriber before changing your injection time.
Red flag: severe persistent stomach pain is a stop-and-seek-help symptom, and vomiting that stops you keeping fluids down needs NHS 111.
Diarrhoea
Replace what you lose with small, regular drinks. A pharmacist can tell you whether an oral rehydration solution is suitable and whether an anti-diarrhoeal is appropriate for you. Avoid very sugary drinks, which can make it worse.
Red flag: blood in the stool, dehydration that is not improving, or being unable to keep fluids down needs NHS 111.
Constipation
Fluids are the first fix, because appetite suppression cuts your fluid intake too. Add fibre gradually, keep moving, and do not ignore the urge to go. A pharmacist can recommend a laxative suited to you. Do not stack several types on your own.
Red flag: no bowel movement for days plus stomach pain, swelling and vomiting could be an obstruction and needs prompt assessment.
Reflux, bloating & burping
Smaller meals, slower eating, fewer fizzy drinks, and staying upright for a couple of hours after your last meal of the day all help because the stomach is emptying more slowly than it used to. A pharmacist can suggest a suitable antacid or reflux treatment.
Red flag: reflux with severe pain, vomiting or difficulty swallowing needs clinical advice.
Tiredness & dizziness
Check you are eating enough overall, not just less. Very low intake plus dehydration is the usual driver. Stand up slowly. Do not drive or operate machinery while dizzy. If you take blood pressure or diabetes medicines, ask your GP whether the doses still fit your new weight.
Hair loss
Hair loss during rapid weight loss is usually a temporary shedding phase that recovers within months. Adequate protein and a general diet rather than an extreme one help. It is listed as more frequent at 7.2 mg. Persistent or patchy loss is worth a GP review to rule out other causes such as low iron or thyroid problems.
Injection site reactions
Rotate between upper arm, stomach and upper leg, and within each area move the spot. Use a new needle every time; blunt or reused needles cause more bruising. Take the pen out of the fridge a few minutes before injecting. Escalate to a pharmacist if a reaction is hot, spreading, leaking or lasting more than a few days.
Evidence checks: things people ask about
Headaches
Unlike some other weight loss injections, headache is a listed very common side effect of Wegovy in its own right. It is also one of the warning signs of low blood sugar. In practice, eating and drinking less is the usual driver, so fluid intake is the first thing to check. Persistent, severe or unusual headaches deserve their own assessment regardless of the medicine.
Mood, depression & suicidal thoughts
The MHRA and the European Medicines Agency have both reviewed reports of suicidal thoughts on GLP-1 medicines and found the available evidence does not support a causal link. That is a population conclusion, not a promise about any one person. If you have suicidal thoughts, get urgent help whatever you think the cause is: call 999 in an emergency, or use your local NHS urgent mental health helpline.
Thyroid cancer
The US label carries a warning about thyroid C-cell tumours seen in rodent studies. The UK leaflet does not carry an equivalent warning, and human data have not shown the same signal. UK prescribers still ask about personal or family history of medullary thyroid cancer or MEN 2 as a precaution, so mention it at your consultation.
Surgery and anaesthesia
The leaflet asks you to tell your doctor you are on Wegovy if you are due to have surgery under anaesthetic. Slower stomach emptying raises the risk of stomach contents entering the lungs during anaesthesia, and UK anaesthetists may ask you to pause the medicine beforehand.
Alcohol
Alcohol is not banned with Wegovy but it stacks with several listed effects: nausea, reflux, dehydration, dizziness and, in people on diabetes medicines, low blood sugar. Many people also find their tolerance drops as they eat less. Our Wegovy and alcohol guide covers this properly.
Where to get help in the UK
Breathing difficulty, throat or face swelling, collapse, unresponsiveness, or hip pain after a fall with inability to stand.
NHS anaphylaxis guidanceSevere or persistent stomach pain, sudden vision changes, jaundice, unable to keep fluids down, much less urine than usual, or a suspected serious side effect.
111 online • Call 111Side effects that persist, recur or make you unsure about the next dose. The pharmacy that dispensed your pen has a duty to offer aftercare; use it.
How iGovy checks pharmaciesReport any suspected side effect, including ones not in the leaflet. Wegovy carries the black triangle, meaning the MHRA specifically wants patient reports. It does not replace getting care.
Report via Yellow CardIn-depth guides to each side effect
Each guide goes deeper than the panel above: mechanism, trial figures, a step-by-step plan and the specific point at which to get help.
Why it peaks after dose steps, food and timing fixes, and when sickness means stop.
A six step relief plan and the bowel obstruction signs the leaflet lists.
Why thirst is blunted, the kidney warning, and a daily hydration routine.
Telling it from ordinary stomach ache, and the January 2026 MHRA update.
Why rapid weight loss raises the risk and the pain pattern to recognise.
The shedding and regrowth timeline, and the 7.2 mg note in the new leaflet.
Dehydration, blood sugar and caffeine causes, and the headaches that need 999.
How drinking stacks with nausea, reflux, dehydration and low blood sugar.
Related iGovy guides
Frequently asked questions
What are the most common Wegovy side effects?
The UK leaflet lists seven very common effects, meaning more than 1 in 10 people: nausea, vomiting, diarrhoea, constipation, stomach pain, headache and feeling weak or tired. They are most noticeable when starting and after each dose increase, and the leaflet says they usually go away over time.
How long do Wegovy side effects last?
For most people the digestive effects peak in the days after a dose step and ease over the following weeks. Dizziness is described in the leaflet as mainly a first three months effect. Hair loss linked to rapid weight loss usually recovers over months. A symptom that is getting worse, not settling, or worrying you should be discussed with your pharmacist or prescriber rather than waited out.
Are side effects worse on 7.2 mg than 2.4 mg?
The leaflet specifically flags two effects as possibly more frequent on 7.2 mg: hair loss and changed skin sensation. Digestive effects at 7.2 mg were broadly similar to 2.4 mg in the trial that supported the higher dose, but individual tolerance varies. The 7.2 mg dose is only for adults with obesity and only after at least four weeks on 2.4 mg.
Should I take my next Wegovy dose if I still feel sick?
Mild nausea that is settling is usually not a reason to skip a dose, but severe symptoms are a reason to contact your prescriber first. Severe persistent stomach pain is different: stop the medicine and get urgent help. Never split, stretch or double doses on your own, and if you have missed a dose, follow the five day rule in the leaflet.
What does Wegovy pancreatitis pain feel like?
The leaflet describes severe, persistent pain in the stomach area, with or without nausea and vomiting, which may spread through to the back. It does not ease with a change of position or over the counter painkillers. This cannot be diagnosed online: stop using Wegovy and get urgent medical help. If pancreatitis is confirmed the medicine should not be restarted.
Can Wegovy affect my eyesight?
Two ways. In people with diabetes, a rapid improvement in blood sugar can temporarily worsen diabetic eye disease. In anyone, there is a very rare condition called NAION, at up to 1 in 10,000 people, that can cause painless vision loss in one eye. Sudden or rapidly worsening eyesight is an urgent same-day call to your doctor or NHS 111.
Why does Wegovy cause gallstones?
Losing a lot of weight quickly by any means raises gallstone risk, because the liver releases more cholesterol into bile as fat is broken down. Gallstones are listed as common on Wegovy. Severe pain under the right ribs, especially after eating, sometimes with fever, needs urgent assessment through NHS 111.
Can I drink alcohol on Wegovy?
There is no absolute ban, but alcohol makes several listed effects more likely: nausea, reflux, dehydration and dizziness. If you use insulin or a sulfonylurea it also raises the risk of low blood sugar. Many people find their tolerance drops because they are eating less, so smaller amounts go further.
Do I need to stop Wegovy before an operation?
Tell your surgical team you are on Wegovy. Because it slows stomach emptying, there is a higher risk of stomach contents being inhaled under anaesthetic, and the anaesthetist may ask you to pause the medicine for a period beforehand. Follow their instructions rather than the leaflet's general schedule.
How do I report a Wegovy side effect in the UK?
Through the MHRA Yellow Card scheme, online or via the Yellow Card app. Patients and carers can report directly and do not need a doctor to do it for them. Wegovy is under additional monitoring (the black triangle on the leaflet), so patient reports are actively wanted. A report is not medical advice; get care separately if you need it.
About this guide
Written by: Nick Johnson, founder of Medstack Ltd and Independent Prescription Pricing Analyst. Checked: 20 October 2026 against the Wegovy FlexTouch patient leaflet revised in June 2026. Next scheduled review: 5 December 2026, or sooner if the UK product information or MHRA safety advice changes. No clinician has reviewed this page; a named clinical reviewer will be added when one is appointed.
How this page was checked: every frequency band on the map and in the table was compared line by line with section 4 of the Wegovy FlexTouch patient leaflet revised June 2026 and section 4.8 of the Summary of Product Characteristics on the eMC, including the entries added in that revision (NAION, hip fractures, kidney and bladder stones, bowel obstruction, and the 7.2 mg notes). Trial figures come from the SmPC and the published STEP papers, never from pharmacy marketing. NHS pages supply symptom guidance and the MHRA Drug Safety Update supplies the pancreatitis wording. The page is re-checked whenever the eMC record changes or the MHRA issues a Drug Safety Update, and at least every three months.
Funding and independence: iGovy earns referral commission when readers use pharmacy discount codes on its price pages. No pharmacy or manufacturer paid for, saw or influenced this page, and health content is never adjusted for commercial reasons.
Change log: 5 September 2026: page rebuilt as an interactive body map with a four step safety check. Every effect in the June 2026 leaflet is now placed on the map, including the newer entries for NAION, hip fractures, kidney and bladder stones, bowel obstruction and the 7.2 mg notes on hair loss and skin sensation. Seven in-depth symptom guides (nausea, constipation, dehydration, pancreatitis, gallstones, hair loss, headache) published as a cluster and linked from each panel; injection sites shown as three syringe markers with arrows to the upper arm, stomach and thigh. 17 August 2026: original leaflet summary published.
Our role: iGovy is an independent price comparison site run by Medstack Ltd. It does not sell, prescribe or dispense medicines, and nothing here replaces the printed leaflet or advice from your prescriber, pharmacist or NHS services. Commercial arrangements with listed pharmacies do not influence this content. Wegovy is the brand name; semaglutide is the active ingredient. Spotted an error? Tell us through the contact page and see our editorial policy.
Primary sources:
- Wegovy FlexTouch patient information leaflet, revised June 2026 (eMC)
- Wegovy FlexTouch Summary of Product Characteristics (eMC)
- NHS: semaglutide
- MHRA Drug Safety Update: strengthened pancreatitis warnings, January 2026
- MHRA Yellow Card scheme
Sources referenced on this page
Linked from the text above:
- Wegovy FlexTouch patient leaflet, eMC www.medicines.org.uk
- NHS: low blood sugar www.nhs.uk
- NHS: diabetic retinopathy www.nhs.uk
- NHS: anaphylaxis www.nhs.uk
- MHRA Drug Safety Update, January 2026 www.gov.uk
- Wegovy Summary of Product Characteristics, eMC www.medicines.org.uk
- NHS: gallstones www.nhs.uk
- NHS: dehydration www.nhs.uk
- NHS: constipation www.nhs.uk
- NHS: osteoporosis www.nhs.uk
- 111 online 111.nhs.uk
- Report via Yellow Card yellowcard.mhra.gov.uk
- NHS: semaglutide www.nhs.uk
Standing primary references for every iGovy page:
- Wegovy (semaglutide) Summary of Product Characteristics and Patient Information Leaflet, electronic medicines compendium
- MHRA Drug Safety Update: GLP-1 receptor agonists
- NICE TA875: semaglutide for managing overweight and obesity
- General Pharmaceutical Council register of pharmacies
- MHRA Yellow Card scheme
