Wegovy® Injectable Pen

What Is Wegovy® Injection?

If managing your weight has felt like an uphill battle despite making positive lifestyle changes, you are not alone. Weight management can be influenced by many factors, including appetite, hormones, genetics, medical conditions and daily habits. For some people, lifestyle changes alone may not provide the support they need, which is where prescription treatments may be considered.

Wegovy® is a prescription-only medicine that contains semaglutide, an active ingredient belonging to a group of medicines called GLP-1 receptor agonists. It is prescribed to support weight management in eligible adults and is designed to be used alongside a reduced-calorie diet, a healthy diet and exercise.

Unlike treatments that focus solely on calorie counting, Wegovy works with the body's natural appetite regulation processes because semaglutide mimics a natural hormone involved in appetite control. For some people, this weight loss medication may help reduce feelings of hunger and increase feelings of fullness, making it easier to lose weight as part of a wider weight management plan.

Wegovy is taken as a once-weekly injection using a pre-filled injection pen. Before it can be prescribed, a qualified UK healthcare professional will assess your medical history, Body Mass Index (BMI), current medications and overall health to determine whether treatment is suitable for you.

This guide explains how Wegovy works, who it may be suitable for, how to use it safely, possible side effects and the role it can play within a long-term approach to weight management.

Semaglutide is also prescribed for other medical conditions under different brand names. The NHS explains that semaglutide works by helping to regulate appetite, regulate blood sugar levels and support feelings of fullness, which may also improve metabolic health, although different products are licensed for different uses and should only be used as prescribed by a healthcare professional.

Why Is Wegovy Prescribed?

There is no single reason why people gain weight or find it difficult to lose it. For many, it is the result of several factors working together, including eating habits, physical activity, genetics, hormone levels, age and certain health conditions.

While improving your diet and becoming more active remain the foundation of healthy weight management, some adults may benefit from additional medical support when lifestyle changes alone have not produced the results they hoped for.

Following a clinical assessment, Wegovy may be prescribed as part of a personalised weight management plan for eligible adults to support weight management alongside lifestyle changes.

Did you know?

In 2026, NHS England announced that around 1.5 million people could become eligible for Wegovy over the coming years following updated guidance, helping improve access for adults who meet the clinical criteria. The phased rollout aims to ensure treatment is available safely while prioritising those most likely to benefit. Trial evidence has also shown a 20% reduction in heart attack risk among people at higher cardiovascular risk. A further finding showed a 20% lower risk of death from heart disease.

When used as prescribed alongside healthy lifestyle changes, Wegovy may help some people:

• Feel fuller after eating.
• Experience reduced feelings of hunger between meals.
• Manage portion sizes more comfortably.
• Find it easier to follow a reduced-calorie eating plan.
• Build healthier habits that support long-term weight management.

Every person's experience with treatment is different. Some people may notice changes sooner than others, while for some, progress may be more gradual. Your healthcare professional will review your progress regularly and assess whether Wegovy continues to be an appropriate treatment for you.

How Does Wegovy® Work?

Wegovy contains semaglutide, which works by mimicking a natural hormone in the body called GLP-1 (glucagon-like peptide-1).

After eating, your body naturally releases GLP-1 to help regulate appetite, food intake and regulate blood sugar levels. Wegovy acts on the same receptors, helping to support your body's natural appetite signals, which may also support blood pressure and broader metabolic health for some people.

For some people, this may help by:

Helping You Feel Fuller for Longer

Many people find that they feel satisfied after eating smaller meals. Feeling fuller for longer may make it easier to reduce unnecessary snacking and maintain healthier portion sizes throughout the day.

Reducing Feelings of Hunger

Wegovy works on areas of the brain involved in appetite regulation. Some people notice that they think about food less often or feel less hungry between meals, making it easier to stick to a balanced eating plan.

Supporting Healthier Eating Habits

Weight management is about following a diet and exercise plan that can be maintained over time. By helping some people manage their appetite, Wegovy is intended to be used alongside healthy eating habits and regular physical activity.

Weight regain can occur after stopping treatment if healthy habits are not maintained.

It is important to remember that Wegovy is not a replacement for healthy lifestyle habits. Instead, it is intended to support an exercise plan as part of a wider weight management programme.

A Treatment That Fits Into Your Routine

Unlike medicines that need to be taken every day, Wegovy is designed to be injected once a week. Many people find that choosing the same day each week helps them build a simple and consistent treatment routine.

Everyone Responds Differently

No two weight management journeys are the same. Factors such as your lifestyle, eating habits, medical history and overall health can all influence how you respond to treatment.

Some people may notice changes in appetite within the first few weeks, while others may experience more gradual changes over time. Your healthcare professional will monitor your progress throughout treatment and make any necessary dose adjustments where appropriate.

Why Ongoing Lifestyle Changes Still Matter

Although Wegovy may help support appetite management, lasting weight management is about more than medication alone, and it works best alongside a healthy diet and regular diet and exercise.

Developing a realistic diet and exercise plan alongside treatment can help you get the most from your weight management plan and support long-term weight management.

Simple lifestyle changes that can make a difference include:

• Eating balanced meals with plenty of fruit and vegetables.
• Including lean protein and wholegrains in your diet.
• Staying physically active in a way that suits your lifestyle.
• Drinking enough water throughout the day.
• Getting regular, good-quality sleep.
• Managing stress where possible.
• Building routines that are realistic and sustainable.

The aim is not to follow a perfect diet or exercise programme, but to make gradual changes that you can continue over time.

Your healthcare professional may also encourage regular follow-up reviews to discuss your progress, answer any questions and ensure that your treatment continues to be suitable for your needs, as ongoing habits can help lower the chance of weight regain after treatment stops.

Compare Your Weight Management Treatment Options

There is no single weight management treatment that is right for everyone. The most suitable option depends on your medical history, Body Mass Index (BMI), lifestyle, current medications and individual health needs.

Some people may prefer a once-weekly injection, including weight loss injections, while others may find a daily tablet more convenient. During your online consultation, a qualified healthcare professional will assess your health and recommend the most appropriate treatment if one is considered suitable.

Clinical trial results for these medicines come from separate studies and should not be directly compared. Individual responses vary from person to person.

Why Some People Choose a Weekly Injection

For many people, remembering to take a daily medicine can become difficult, especially when balancing work, family and everyday responsibilities.

A once-weekly treatment may feel easier to fit into an existing routine.

By choosing one day each week for your injection, some people prefer a once-weekly treatment because it may fit more easily into their routine. This convenience is one of the reasons weekly injections have become an option for eligible adults looking for additional support with weight management.

However, convenience alone does not determine whether Wegovy is suitable. Your healthcare professional will consider your overall health, medical history and treatment goals before making a recommendation.

Thinking About Changing Treatments?

If you are currently using another prescription weight management medicine, it is important not to change treatments without first speaking to your healthcare professional.

Although medicines such as Wegovy and Mounjaro are both prescribed to support weight management, they contain different active ingredients and follow different dosing schedules. This means they cannot simply be swapped without medical advice.

Before recommending a change, your healthcare professional may consider:

• The treatment you are currently using.
• Your current dose.
• How long you have been receiving treatment.
• Your progress so far.
• Any side effects you have experienced.
• Other medicines you take.
• Your medical history.
• Your overall health.

If changing treatment is appropriate, you will be given clear guidance on how to make the transition safely.

Never stop one prescription medicine and begin another unless you have been advised to do so by a qualified healthcare professional.

How to Use Wegovy® Safely

Using your medication exactly as prescribed is an important part of your treatment.

Wegovy is supplied as a pre-filled Wegovy pen and is injected once each week. Each pen contains 4 doses for 4 weeks. Your healthcare professional will explain how to use the pen correctly and provide guidance on your treatment schedule.

Treatment usually begins with a lower dose before being increased gradually every 4 weeks until the maximum dose. This allows your body to adjust to the medicine and may help reduce the likelihood of digestive side effects.

Always follow the dosing schedule recommended by your prescriber, check you have the correct dose before each use, and never increase your dose yourself.

Using Your Wegovy Injection

To help you get into a regular routine with your Wegovy injection pen:

• Inject Wegovy once a week on the same day whenever possible.
• Choose a time that is easy to remember.
• Wegovy can be taken with or without food.
• Always check you have the correct dose before injecting, and use the dose prescribed for you.
• Read the Patient Information Leaflet before starting treatment.
• Follow the instructions supplied with your injection pen.

If you are ever unsure how to use your pen, speak with your healthcare professional or pharmacist before administering your next dose.

Where to Inject Wegovy

Wegovy is injected just beneath the skin (a subcutaneous injection).

Recommended injection sites include:

• The front of the thighs.
• The abdomen (stomach area).
• The upper arm, if another person is giving the injection.

Rotating the injection site each week is recommended, as this may help reduce skin irritation or discomfort.

Avoid injecting into skin that is bruised, sore or damaged.

If You Miss a Dose

Missing an injection occasionally can happen.

If your next scheduled dose is more than five days away, take the missed dose of Wegovy as soon as you remember.

If your next dose is due within five days, skip the missed dose and continue with your usual schedule.

Do not take a double dose or inject an extra dose to make up for one you have missed.

If you have missed more than one dose or are unsure what to do, contact your healthcare professional or pharmacist before restarting treatment.

How to Store Wegovy

Correct storage helps ensure your medicine remains effective.

Follow these storage recommendations:

• Keep unused Wegovy pens refrigerated between 2°C and 8°C.
• Do not freeze your pen.
• Store the pen in its original carton to protect it from light, and keep the pen cap on to help shield it from light exposure.
• Keep your medicine out of the sight and reach of children.
• Always check the expiry date before use.

Once your pen is in use, follow the storage instructions provided in the Patient Information Leaflet.

Safe Disposal

After each injection, remove the needle and dispose of it safely in an approved sharps container.

For your safety:

• Never throw loose needles into household waste.
• Never share your injection pen with another person.
• Store the pen without a needle attached between injections where instructed.
• Dispose of full sharps containers according to your local guidance or pharmacy advice.

Taking a few extra moments to dispose of your equipment safely helps protect both you and those around you.

Building a Routine That Works for You

Starting any new treatment takes time, and developing a routine can make it easier to stay consistent.

Many people find it helpful to:

• Choose the same injection day every week.
• Set a reminder on their phone or calendar.
• Keep a record of each dose.
• Plan meals and physical activity around their weekly routine.
• Attend regular follow-up reviews with their healthcare professional.

Remember that Wegovy is designed to support your wider weight management journey. Building sustainable habits alongside treatment can support long-term weight management alongside your prescribed treatment.

Who Can Use Wegovy®?

Wegovy is a prescription-only medicine and is not suitable for everyone. Before treatment can be prescribed, a qualified UK healthcare professional will review your online consultation to assess whether Wegovy is appropriate for your individual health needs.

Your assessment takes into account more than just your weight. Your healthcare professional will also consider your Body Mass Index (BMI), medical history, current medications and any existing health conditions before making a decision.

Wegovy may be prescribed for adults who meet the relevant clinical criteria for weight management, including adults with a BMI of 27 or higher where appropriate. It is designed to be used alongside healthy lifestyle changes, including a balanced diet and regular physical activity. Ongoing prescribing may also depend on losing at least 5% of body weight within 6 months, where applicable.

If Wegovy is not considered suitable, your healthcare professional may recommend an alternative treatment or advise you on other weight management options.

Who Should Not Use Wegovy®?

Like all prescription medicines, Wegovy may not be appropriate for everyone.

You should inform your healthcare professional about your full medical history before starting treatment. This helps ensure that the medicine prescribed is safe and suitable for you.

Wegovy may not be suitable if you:

• Are pregnant or planning to become pregnant.
• Are breastfeeding.
• Have an allergy to semaglutide or any of the ingredients in Wegovy.
• Have certain pancreatic conditions.
• Have a personal or family history of specific thyroid conditions.
• Have severe stomach or digestive conditions that may affect treatment.
• Have been advised by your healthcare professional that this medicine is not suitable for you.

This is not a complete list. Always provide accurate medical information during your consultation so your healthcare professional can make an informed decision.

Your Online Consultation

At NuMe, your safety always comes first.

Before any prescription treatment is supplied, you will complete a confidential online consultation. This allows a qualified UK healthcare professional to understand your medical history and determine whether Wegovy is an appropriate treatment option. In some NHS pathways, access may require referral to a specialist weight management service or specialist weight management clinic as part of specialist weight management.

During your consultation, you may be asked about:

• Your height and weight.
• Your Body Mass Index (BMI).
• Any medical conditions you have.
• Current medications.
• Previous weight management treatments.
• Allergies.
• Your lifestyle and weight management service goals.

Answering these questions honestly is essential. Accurate information helps ensure you receive treatment that is safe and appropriate for your individual circumstances.

If further information is required, your healthcare professional may contact you before making a prescribing decision.

How Your Treatment Begins

If Wegovy is prescribed, treatment usually starts with the lowest available dose.

Beginning at a lower dose allows your body time to adjust to the medication before the dose is gradually increased. This step-by-step approach is recommended because it may help reduce the likelihood of certain side effects, particularly those affecting the digestive system.

Your healthcare professional will provide a dosing schedule that explains when each dose increase usually happens, typically every 4 weeks until the maximum dose is reached.

It is important to follow this schedule carefully and not make a dose increase earlier than advised.

If you have any questions during treatment, your healthcare professional or pharmacist can provide guidance.

Wegovy® Dosage Guide

Wegovy is introduced gradually over several weeks.

Your treatment will normally follow this schedule unless your prescriber advises otherwise:

This is the usual dose of Wegovy schedule unless your prescriber advises otherwise.

Not everyone reaches the maintenance dose at the same time. Some people may remain on a lower dose for longer if recommended by their healthcare professional.

Only use the dose that has been prescribed specifically for you.

While You Are Using Wegovy®

Regular check-ins with your progress can help you get the most from your treatment.

During your weight management journey, try to pay attention to changes in body weight and not just the number on the scales.

Many people also choose to monitor:

• Their eating habits.
• Physical activity levels.
• Energy levels.
• Waist measurements.
• How their clothes fit.
• Overall wellbeing.

In trials, participants lost 15% of body weight over 15 months with Wegovy. Another study reported an average 21% body weight loss over 72 weeks, although individual results can vary.

Healthy weight management is often about building sustainable habits rather than achieving rapid results.

If you have concerns about your progress or experience side effects that are affecting your daily life, speak with your healthcare professional. They can advise whether any adjustments to your treatment plan are needed.

Eating Well While Taking Wegovy®

Although Wegovy may help manage appetite, it works best when combined with a healthy diet.

Rather than following restrictive diets, focus on creating balanced meals that you can enjoy over the long term.

Some simple ways to support your treatment include:

• Eating regular meals instead of skipping them.
• Including lean protein with each meal.
• Choosing wholegrain carbohydrates where possible.
• Eating plenty of fruit and vegetables.
• Drinking enough water throughout the day.
• Limiting foods and drinks that are high in added sugar.

Healthy eating is not about perfection. Small, consistent improvements are often easier to maintain than making dramatic changes all at once.

Staying Active During Treatment

Physical activity remains an important part of any weight management plan.

Exercise does not need to be intense or time-consuming. The most effective routine is often one that you enjoy and can maintain.

Activities might include:

• Walking.
• Cycling.
• Swimming.
• Strength training.
• Yoga or Pilates.
• Dancing.
• Home workouts.

Even small increases in your daily movement can contribute to a healthier lifestyle over time.

What If Wegovy Is Not Right for You?

Not everyone will be suitable for Wegovy, and that is perfectly normal.

Your healthcare professional may recommend a different treatment depending on your medical history, current health or personal preferences.

Weight management is not a one-size-fits-all approach, and there are several clinically approved options that may be considered where appropriate.

If prescription treatment is not suitable, healthy lifestyle changes remain the foundation of long-term weight management, and your healthcare professional may recommend other forms of support to help you achieve your goals.

At NuMe, our priority is to help you access safe, appropriate care that is tailored to your individual needs rather than recommending the same treatment for everyone.

Possible Side Effects of Wegovy®

Like all medicines, Wegovy can cause side effects, although not everybody will experience them. The type and severity of side effects vary from person to person, and many people find that mild side effects improve as their body adjusts to treatment.

Most side effects occur during the early stages of treatment or when the dose is increased. This is one of the reasons Wegovy is started at a lower dose before being gradually increased over time.

Your healthcare professional will explain how to use your medication correctly and what to expect throughout your treatment.

Common Side Effects

Some of the more commonly reported side effects include:

• Nausea
• Vomiting
• Diarrhoea
• Constipation
• Stomach pain or discomfort
• Indigestion
• Bloating
• Reduced appetite
• Headache
• Feeling tired

These side effects are often temporary and may improve as your body becomes accustomed to the medication.

Tips for Managing Mild Side Effects

If you experience mild digestive symptoms, the following may help:

• Eat smaller meals more frequently.
• Eat slowly and avoid rushing meals.
• Stay well hydrated throughout the day.
• Avoid very rich, greasy or spicy foods if they make symptoms worse.
• Continue taking your medication exactly as prescribed.

If side effects persist, become difficult to manage or begin affecting your daily activities, speak with your healthcare professional for advice.

When Should You Seek Medical Advice?

Although serious side effects are uncommon, it is important to seek medical attention if you experience symptoms that concern you or feel severe.

You should contact your healthcare professional promptly if you experience persistent vomiting, severe stomach pain, signs of an allergic reaction or any unexpected symptoms while using Wegovy.

Always read the Patient Information Leaflet supplied with your medication before starting treatment.

Frequently Asked Questions

How long does Wegovy take to work?

Everyone responds to treatment differently. Some people notice changes in their appetite within the first few weeks, while for others it may take longer. Your progress will depend on a range of factors, including your lifestyle, eating habits, activity levels and how consistently you follow your treatment plan.

Do I need to follow a diet while using Wegovy?

Wegovy should be used alongside healthy eating and regular physical activity as part of your prescribed treatment plan. Developing healthier eating habits and staying active can help support your overall weight management plan.

Can I drink alcohol while taking Wegovy?

Alcohol is not specifically prohibited while using Wegovy. However, drinking alcohol may worsen certain digestive side effects for some people. If you choose to drink alcohol, it is generally recommended to do so in moderation.

Wegovy can also support metabolic health by helping with blood sugar management. If you use insulin or sulfonylureas, get medical advice, as alcohol and Wegovy can affect blood sugar levels and raise the risk of low blood sugar, which may be more noticeable after a dose increase.

If you have any concerns about alcohol and your treatment, speak with your healthcare professional.

What happens if I stop taking Wegovy?

If you are considering stopping your treatment, speak with your healthcare professional first.

They can advise you on the safest approach and discuss alternative options if appropriate. Continuing healthy eating habits and regular physical activity remains important whether or not you continue medication.

Can Wegovy be used with other medicines?

Always tell your healthcare professional about any prescription medicines, over-the-counter medicines, vitamins or supplements you are taking before starting Wegovy.

Some medicines may require additional monitoring or may influence whether Wegovy is suitable for you.

Is Wegovy suitable for people with diabetes?

Wegovy may be suitable for some people living with diabetes, but treatment decisions are made on an individual basis.

Your healthcare professional will consider your medical history, current medication and overall health before recommending any treatment.

What if I forget my injection day?

If you miss a dose, follow the instructions provided by your healthcare professional or the Patient Information Leaflet supplied with your medication.

If you are unsure what to do, seek advice before administering your next injection.

Will I need regular reviews during treatment?

Yes. Regular reviews allow your healthcare professional to monitor your progress, discuss any side effects and ensure that Wegovy continues to be an appropriate treatment for you.

Why Choose NuMe?

Choosing a weight management provider is about more than convenience. It is about feeling confident that your care is safe, personalised and supported by qualified healthcare professionals.

At NuMe, every consultation is reviewed individually because we understand that no two people have the same health history or weight management goals.

When you choose NuMe, you can expect:

• Online consultations completed from the comfort of your home.
• Reviews by qualified UK healthcare professionals.
• Treatment recommendations based on your individual needs.
• Genuine UK-licensed prescription medicines, where clinically appropriate.
• Discreet delivery direct to your chosen address.
• Clear guidance to help you use your medication safely.

Our focus is on providing responsible, patient-centred care while making it easier to access appropriate treatment when you need it.

Buying Wegovy Online with NuMe

If you are considering Wegovy as part of your weight management journey, getting started is simple.

Complete Your Online Consultation

Answer a series of questions about your health, medical history, current medications and weight management goals.

Providing accurate information allows your healthcare professional to assess your suitability safely.

Clinical Review

Your consultation will be carefully reviewed by a qualified UK healthcare professional.

If additional information is required, you may be contacted before a prescribing decision is made.

Prescription Where Appropriate

If Wegovy is considered suitable, a prescription will be issued and your medication prepared for dispatch.

If it is not the right treatment for you, your healthcare professional may recommend alternative options based on your individual circumstances.

Discreet Home Delivery

Once approved, your medication will be delivered in discreet packaging to your chosen address, allowing you to begin treatment conveniently from home.

Begin Your Weight Management Journey

Taking the first step towards managing your weight can feel overwhelming, but support is available.

Whether you have recently started exploring weight management treatments or have been considering Wegovy for some time, NuMe provides access to information and clinical assessment to help you make informed decisions about your treatment options.

Complete your online consultation today to find out whether Wegovy may be suitable for you. Every consultation is reviewed by a qualified UK healthcare professional to ensure that any treatment offered is safe, appropriate and tailored to your individual needs.

Prescription weight loss medicines cannot be supplied without checking that they are safe and appropriate for each individual. As explained by the Department of Health and Social Care, eligibility for Wegovy depends on factors such as BMI, medical history and other health conditions, and NHS access may involve referral through a specialist weight management clinic. Wegovy has also been approved for use in the UK by the Medicines and healthcare products regulatory agency. This helps ensure that treatment is prescribed responsibly and to the people who are most likely to benefit.

If prescribed, Wegovy should always be used alongside healthy lifestyle changes, helping you build sustainable habits that support your long-term wellbeing.