Wegovy® (Semaglutide) Weekly Injection

Based on 306 reviews

GLP-1 Agonist Weekly Semaglutide Injection. The 0.5mg dose is limited to existing patients only due to supply issues.

  • Each pen contains 4 doses, enough for 1 months supply
  • After one year, adults taking Wegovy can potentially lose 15% of their body weight
  • Contains the active ingredient semaglutide
  • Treatment length varies per individual
  • Always read the patient information leaflet before use
Price Per Pen
Wegovy 0.25mg Pen
Wegovy 0.5mg Pen
Wegovy 1mg Pen
Wegovy 1.7mg Pen
Wegovy 2.4mg Pen
The treatment is inclusive of consultation, private prescription & medicine delivery
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Laura Henderson - Medical Content Writer
Laura Henderson
Medical Content Writer
James O'Loan - CEO & Superintendent Pharmacist
James O'Loan
CEO & Superintendent Pharmacist

Important notice for all patients ordering the 0.5mg dose of Wegovy

Due to increased demand for the 0.5mg dose of Wegovy, the manufacturer, Novo Nordisk, has needed to supply the medicine from Switzerland to ensure patients in the UK have timely access to treatment. This means that the box you receive will feature Swiss instructions, but the product itself will be exactly the same. This has been approved by the MHRA. For more information, please see here, or for detailed instructions on how to use Wegovy 0.5mg, please refer to the instructions on this page.


Additional information regarding the 0.5mg dose of Wegovy

Please note that the 0.25mg, 1.0mg, 1.7mg and 2.4mg doses are available to new and returning patients. However, due to supply issues, the 0.5mg dose is only available to existing patients.


Buy Wegovy® Online

Wegovy® is a new prescription weight loss treatment that has just been licensed in the UK. They use the active ingredient semaglutide help to control your appetite and keep you feeling fuller for longer, making it easier to stick to that reduced-calorie diet and helping you to lose up to 15% of your starting weight. You'll receive 1 month's treatment in a single FlexTouch pen, and you’ll only need to inject once a week! If you have a BMI of 30 and above and have found that other weight loss treatments haven’t worked for you, Wegovy could be just what you need to hit your weight loss goals.


How Wegovy works

Semaglutide is the active ingredient in Wegovy and it is part of a group of medications called GLP-1 receptor agonists. This means it works by helping you to regulate your appetite, reducing hunger and cravings. It stimulates the production of insulin in your pancreas and also helps to reduce the production of a hormone called glucagon. This combination reduces cravings and feelings of hunger and slows down the emptying of your stomach contents, helping you feel fuller for longer. By reducing your appetite, Wegovy injections make it easier for you to stick to a calorie-controlled diet, which naturally makes it easier for you to lose weight.



You’ll use Wegovy once a week. Before injecting this weight loss medication, make sure to wash your hands and check the pen for any damages and the expiration date, then clean the area you’re going to inject with an alcohol swab or soap and water. Your Wegovy FlexTouch pen has enough doses for 1 month (4 doses, 1 dose injected once a week). You must replace the needle and redial the dose after every use.

Remove the pen cap and push a new needle straight onto the pen. Turn until it's tight. The needle is covered by two caps. You must remove both caps. Pull off the outer cap and keep it for later; you will need it to remove the needle safely after injecting. Pull off the inner needle cap and dispose of it. A drop of Wegovy may appear on the needle's tip. If this is your first time using the pen, you must check the flow before use. If not, inject as normal.

To check the flow, hold the pen with the needle pointing up. Press and hold the dose button until the dose counter returns to '0'. A drop of Wegovy should appear on the needle's tip. This means that your pen is ready for use. If it doesn't appear, check the flow again. This should only be done twice. If there is still no drop, change the needle and check the flow again. Do not use the pen if no drop of Wegovy still doesn't appear.

Now it's time to set your dose. Press and hold down the dose button until the desired dose appears on the counter. After selecting your dose, insert the needle into your skin, ensuring the dose counter is still visible. While injecting, press and hold the dose button until it returns to '0'. You may hear a click when it returns to '0'.

Carefully remove the needle from your skin. Bring the needle tip to the outer cap that you kept earlier and push it onto the needle. Unscrew the needle cap and dispose of it in a sharps container. Then put the cap back on your pen to protect the rest of your doses from the light. You may notice a little blood where you’ve injected your pen, this is totally normal, press down on the area lightly with a cotton ball or a gauze pad to stop the bleeding and clean.



Injection sites

You can choose from a few different injection sites for Wegovy, and your prescriber may recommend one for you. These sites include:

  • Your upper legs
  • Your lower stomach
  • Your upper arms

You can inject into the same area every time you use this treatment, but you should make sure that you don’t choose the exact same injection spot every time. Make sure to avoid any areas of skin that are bruised, broken, tender, red, or damaged in any way.


Dosing and titration

When you start taking Wegovy you’ll be prescribed the lowest possible dose (usually 0.25mg a week) and increase strength slowly over time. This process is called titration and it helps your body to adjust to your new medication and reduces side effects. Your health care team will usually review the dose you’re taking every 4 weeks, increasing it once a month until you’re taking the highest possible dose of 2.4mg a week. The key is to keep communicating openly with your prescriber and health care team and follow the dosage instructions they give you carefully.


Side effects

Like all medications, Wegovy can have side effects, although not everyone will experience them. The most common side effects you may experience include:

  • Feeling sick, this will usually go away over time
  • Low blood sugar, showing symptoms such as a cold sweat, cool pale skin, headaches, a fast heartbeat, feeling sick or very hungry, vision changes, sleepiness or weakness, nervousness, anxiety, confusion, difficulty concentrating, or shaking
  • Indigestion
  • Stomach inflammation or gastritis, showing symptoms such as stomach aches, feeling sick or being sick
  • Acid reflux or heartburn
  • Stomach pain
  • Bloating
  • Constipation (being unable to poo easily)
  • Burping or farting, gas
  • Gall stones
  • Dizziness
  • Tiredness
  • Weight loss
  • Reduced appetite
  • An increase of pancreatic enzymes, e.g. lipase, amylase

If you experience these or any other side effects, speak to your doctor or pharmacist as soon as possible. For a complete list of potential side effects of this medication please see the patient information leaflet included with your treatment. For more information about reporting the side effects of medication please see the MHRA’s Yellow Card Scheme.


Serious side effects

Serious side effects of Wegovy include:

  • Complications of diabetic eye disease, also known as retinopathy, showing symptoms such as changes in vision and other eye problems
  • Increased risk of low blood sugar in patients with type 2 diabetes, showing symptoms such as dizziness or light-headedness, sweating, shakiness, vision changes, slurred speech, etc.
  • Inflammation of the pancreas, showing symptoms such as severe pain in the stomach and back which doesn’t go away
  • Symptoms of a severe allergic reaction, e.g. difficulty breathing or swallowing, swelling of the eyes, face, mouth, tongue or throat, severe rashes, itching or hives
  • Gallbladder problems, showing symptoms such as upper stomach pain, yellowing of the skin or eyes (jaundice), a fever, clay-coloured poo
  • Kidney problems or kidney failure, especially in those who already have kidney problems
  • Increased heart rate — speak to a doctor right away if you notice your heart racing or pounding in your chest for several minutes
  • Depression or suicidal thoughts. Pay attention to any changes to your mental health or mood while taking this product and speak to your doctor if any of these choices worry you

If you experience any of these side effects while using this product you should stop use and seek immediate medical help. If your symptoms are particularly severe you should seek treatment at your local A&E department or call 999 for emergency services.



Wegovy pens are not suitable for use in children and teens under the age of 18. Do not use this product if you are allergic to semaglutide or any of the other listed ingredients. Do not take this treatment if you or any of your family have ever had a type of cancer called medullary thyroid carcinoma (MTC) or an endocrine system condition called Multiple Endocrine Neoplasia syndrome type II (MEN 2). Tell your prescriber during your consultation if you have:

  • Kidney problems
  • Pancreas problems
  • Depression, suicidal thoughts, or any other mental health issues
  • Type 2 diabetes


Pregnancy and breastfeeding

Wegovy is not suitable for use during pregnancy or breastfeeding, as it’s currently unknown whether the semaglutide in this treatment will affect your child while in the womb or whether it will pass into your breastmilk. Many women find that they gain weight during pregnancy, but if you’re worried about yours you should speak with your doctor or healthcare team and ask for advice. They’ll be able to help you work out why you’re gaining weight, (for example, whether it’s caused by cravings or hormonal changes) and help you to make lifestyle choices that could help you reach and stay at a healthy weight.


Other medications

If you’re using any other medication, including herbal remedies and medicines you obtained without a prescription, you should tell your prescriber about them during your consultation for Wegovy. Some medications can interact when used together, causing unwanted side effects or making your medication less effective. You should especially be sure to tell your prescriber if you are already taking:

  • Anticoagulants, also known as blood thinners, such as warfarin
  • Insulin, as your doctor will need to monitor your blood sugar more closely and may change your insulin dose
  • Any other weight loss medications


Important information

This product is a medicine; make sure to speak to your doctor or Chemist4U pharmacist before taking this product if you have an underlying medical problem or are taking any other medicine or complementary therapy. If your symptoms get worse or continue after taking this product, contact us or your doctor. For medical services in your area, please refer to https://www.nhs.uk

If you are pregnant, trying to become pregnant, or breastfeeding, speak to your doctor or our pharmacist before taking this product. If you suffer from any allergies, ask your doctor or our pharmacist if this medicine is right for you.

Store all medicines out of sight and reach of children.

Please read the included leaflet carefully before using this product.

Please contact your GP if appropriate regarding this product.



Store unused Wegovy pens in the refrigerator, at a temperature between 2 - 8 degrees C. Do not freeze. If you need to, a pen that has not had its cap removed can be stored at room temperature (below 30 degrees C) for up to 6 weeks. Store in original carton away from light. Once you’ve used your pen, discard it safely in an appropriate sharps bin.

Wegovy® (Semaglutide) Weekly Injection Reviews

By Gail,
July 16, 2024
Just started this months injections . Fine so far.
By Miss Natalie swindon,
July 16, 2024
Good product and helps to stop feeling hungry all the time
By Annette Bailey,
July 16, 2024
Working well for me
By A U,
July 16, 2024
Fantastic and helping make great progress!
July 16, 2024
Good it works initially

Advice & Guides

What dosage of Wegovy should I take?

Finding the Right Strength of Semaglutide   So, you’re thinking of taking Wegovy (semaglutide) to help you meet your weight loss goals. But what dosage are you supposed to take? You can buy Wegovy pens in five different dosage strengths, but which one is right for you? And what is...
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How does the semaglutide in Wegovy work?

Why semaglutide injections help with weight loss Wegovy (semaglutide) may be a bit of a new kid on the weight loss medication block, so it’s natural to be interested in how it works and whether it works at all! New weight loss medications can be a bit intimidating, especially if...
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Wegovy vs Saxenda - 6 differences between GLP-1 injections

Is Wegovy different to Saxenda?   Yes, the active ingredient in Wegovy is different from Saxenda. Wegovy contains semaglutide where as Saxenda contains liraglutide. How you use it, the weight loss results and the dose are some of the differences between the two weight loss injections. There has been lots...
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8 Wegovy side effects and how to manage them

Are you worried about the side effects of Wegovy? Starting a new medicine can be worrying, especially one like semaglutide which has a long list of potential side effects. Side effects don’t always affect everyone, and most of the time they’ll go away once your body has gotten used to...
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Funding your weight loss treatment

  Whether you’ve decided upon your weight loss treatment or you’re still browsing the market, the question you might be asking is how you’ll pay for your treatment – is it funded by the NHS? Do you have to pay privately? What about if you have insurance? In this guide...
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How to take Wegovy in 7 easy steps

  Alternatively, head over to our TikTok page to watch the full video on how to inject Wegovy with one of our pharmacists, Ian. Injecting Wegovy can seem daunting. After all, unless you’re a diabetic, you’ll probably only witness a needle puncturing your skin when you have a blood test...
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Who can take Wegovy weight loss injections?

Could Wegovy help you to lose weight?   Yes, if you meet the criteria and other weight loss methods haven't worked, like exercising and eating a balanced diet. Studies have shown ~15% weight loss sustained over 2 years when taking Wegovy alongside a reduced calorie diet and increased physical exercise...
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Lifestyle changes for Wegovy

Wegovy may look tempting, but have you considered the lifestyle changes you’ll need to adopt to lose weight and keep it off? Wegovy (semaglutide) works by suppressing your appetite, encouraging you to eat less and reach for healthier options, meaning your lifestyle will have to change. Habits like overeating or...
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Frequently Asked Questions

Is Wegovy the same thing as Ozempic?

Wegovy and Ozempic are two medications which use the same active ingredient for different purposes.

They are both manufactured by Novo Nordisk, which holds the patent for both medications at the moment. Ozempic is a medication for patients with type 2 diabetes that helps you to control your blood sugar, and it can be used alone or alongside other medicines like insulin or metformin.

As they both contain semaglutide, these medications work similarly, but that doesn’t mean you can use them interchangeably.

Ozempic is used in different dose sizes to Wegovy, with Wegovy often being prescribed in higher amounts, so if you’re already taking Ozempic for type 2 diabetes you won’t be able to take Wegovy as well, as this could cause an overdose of the active ingredient.

Is a sharps bin included with this product?

Yes, we can supply sharps bins you can use to safely dispose of Wegovy or Saxenda pens.

When you have completed your consultation with our prescribers, the option to include a sharps bin with your order will be there for you to select.

Depending on your order size, we may be able to give you your sharps bin for free, but there may be a charge for smaller orders.

Once you have your sharps bin, you will need to contact your local council to organise collection and its safe disposal when your bin is full.

What is the difference between Wegovy and Saxenda?

Saxenda is another brand of weight loss injection that is very similar to Wegovy.

They work in a similar way, but use different active ingredients and have different dosage sizes. Saxenda uses an active ingredient called liraglutide, which is part of the same group of medicines as semaglutide — GLP-1 receptor agonists.

Saxenda needs to be injected once a day, whereas Wegovy only needs to be injected once a week.

Saxenda pens also need you to set your dose manually and insert a new needle for each dose, Wegovy doesn’t need you to do either of these as each pen is only used once.

The final big difference is that Wegovy has been shown to be much more effective than Saxenda in clinical trials.

With Saxenda you can lose 5% of your starting weight within 12 weeks of taking its maximum dose, but clinical trials of Wegovy have found that patients lose an average of 15% of their starting weight.

Can I drink alcohol while I’m taking Wegovy?

You can drink alcohol while you’re taking Wegovy, it shouldn’t affect the way this treatment works.

However, we always recommend that you drink in moderation and try to drink water or another soft drink between alcoholic drinks to help you stay hydrated.

Something else you should look out for is the calorie content in alcoholic drinks.

Alcoholic drinks often contain a lot more calories than you might expect, so drinking a lot can interfere with your weight loss simply by increasing your calorie intake.

Do Wegovy pens need replacement needles?

Unlike Saxenda, Wegovy pens don’t need you to replace their needles after each use.

This is because Wegovy pens are single-use only, so you won’t need to measure out a dose manually and won’t need to worry about putting a new needle onto your pen.

This is one of the reasons that patients prefer this treatment to Saxenda, as you don’t need to manage dosing or needles by yourself, making the whole process simpler.

How long do Wegovy weight loss injections take to work?

Wegovy injections get to work in your system right away, but that doesn’t mean that the pounds will fall off within a couple of days.

Clinical trials of Wegovy have shown that patients typically lose 15% of their starting body weight during their treatment, but how quickly this happens depends on the number of calories you’re eating every day.

Wegovy works by helping to control your appetite and reduce food cravings, making it easier for you to stick to the low-calorie diet you’ll need to lose weight.

A healthy rate of weight loss is generally considered to be 1 - 2lbs a week, so you may want to use this as a rule of thumb when considering your weight loss goals.

Do I need a prescription for this medication?

You do need a prescription for this medication in the UK.

Our healthcare professionals can provide prescriptions if they think this treatment would be right for you and your condition.

When you click the button which reads “Start Consultation” at the top of this page, you’ll see a short questionnaire set up by our healthcare team which is designed to help them understand your medical needs.

Just like an in-person consultation with your GP, our doctors will assess your answers to their questions and write a prescription for the treatment they think will be best for you.

You’ll then be able to pay for your medication and we’ll send it out to you quickly and in discreet packaging.

Why do you need to know my BMI?

Weight loss treatments are only suitable for use in people with a BMI (body mass index) of 30 or above, or a BMI of 27 or above in those who have weight-related medical conditions. If your BMI is lower than this, then our prescribers won’t be able to recommend this product as a treatment for you.

Starting to take weight loss medication when you have a lower BMI could mean that you lose too much weight and become underweight, which can also contribute to some medical conditions.

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