Choosing Generic Vs Branded Wegovy FlexTouch Injection


Generic medicines contain the same active ingredient and are equally effective and medically equivalent as the branded products but are available at a lower price. Generic manufacturers have to demonstrate that they are medically identical to the branded product - i.e. they offer the same quality, strength, stability and effectiveness.

Generic medicines are required meet the same standards of safety, quality and efficacy as the branded medication. To receive market approval from the European Medicines Agency and MHRA, a generic medicine must be 'bioequivalent' to the originator product.

Choosing the correct strength



Weeks 1-4: This is the starting dose for the first four weeks of treatment to allow the body to get used to Wegovy and reduce side effects. You may begin to notice subtle changes in your appetite. Gastrointestinal side effects like nausea and diarrhoea are usually mild at this dose.


Weeks 5-8: This dose is prescribed after your initial dose. You may notice appetite suppression and some weight loss may occur in this phase. Side effects such as nausea occur more commonly as the dose increases but can be mitigated by eating bland, low-fat foods.


Weeks 9-12: You should expect moderate appetite suppression and weight loss. You may notice side effects such as nausea, vomiting and diarrhoea peak at this dose before gradually improving as the body gets used to higher doses of treatment.


Weeks 13-16: You should expect marked appetite suppression and a feeling of fullness while taking this dose. Side effects may improve over time when taking maintenance doses as the body acclimates to the treatment dose. Some people may continue on this dose for the rest of their treatment if unable to tolerate 2.4mg dosing.


Weeks 17+: This is the maximum dose for additional weight loss and will be used for the remainder of your treatment. You can expect marked weight loss on this dose. After 6 months of treatment your weight loss journey will be reviewed by the clinical team.

Wegovy® Injectable Pen

  • Lose 15% bodyweight on average1
  • Clinically proven programme
  • Weekly self injection
  • Lowest price guarantee


A guide to Wegovy

What is Wegovy?

Wegovy® (semaglutide) is an injectable weight loss drug for people with a BMI over 30. It’s also available for people with a BMI over 27 with additional weight-related health concerns, like high blood pressure, diabetes, heart disease and raised cholesterol.

If you have Type 2 diabetes and a BMI less than 27, we can’t prescribe you Wegovy for weight loss.

Wegovy injectable dosing pen, shown at 2.4mg strength with a black label.

How does Wegovy work?

Wegovy® acts similar to a natural hormone in the gut that helps to control your appetite and make you feel fuller.

How to use Wegovy

Wegovy® is an injectable medication that comes in a pre-filled pen. It needs to be used once weekly, on the same day. The pen itself is simple to use and the needles are very small, so it’s relatively pain-free and easy to get used to.

Wegovy® can be injected in the abdomen, thigh or upper arm at any time during the day, with or without food. It’s recommended that you use it around the same time each week — this will regulate the medication’s effectiveness. 

You’ll receive clear instructions with your first order, and the Wegovy® website has lots of useful information too.

This helpful video has more information about how to use Wegovy 

How to calculate your dosage

Your treatment starts at a low dose and then increases every four weeks. When you first start using Wegovy®, the starting dose is 0.25 mg, once a week, for four weeks. The dose will then be increased after every four weeks until you reach the recommended dose of 2.4mg a week.

This chart shows how your dosage will increase over five months: 

Wegovy monthly dosing guide. Month 1: 0.25mg. Month 2: 0.5mg. Month 3: 1.0mg. Month 4: 1.7mg. Months 5+: 2.4mg or 1.7mg

Once you have been on treatment for around six months, we’ll review your weight to see how much you’ve lost in that time. For us to continue prescribing Wegovy® to you, you’ll need to have lost around 5% of your initial body weight and submit your results when we check in with you.

How effective is Wegovy?

85% of people taking Wegovy lost weight

Wegovy® is one of the most effective weight loss treatments available. Studies have shown over 85% of people using it have lost weight. Two thirds of participants lost more than 10% of their body weight, and nearly one third of people lost more than 20%. Users, on average, lost more than 15kg.

How to order Wegovy

First time orders

When you order Wegovy® for the first time, we’ll provide you with the lowest dose pen, that contains 4 doses of Wegovy, enough for your first 28 days treatment. It's important to store it in a refrigerator between 2–8°C. Each box of Wegovy® comes with 4 needles, one for each weekly dose. You will also receive:

  • A sharps bin
  • An instruction leaflet
  • Extra tips that can help you to lose weight

To get started, complete a consultation for an injectable weight loss pen and select the starter pack.

With each subsequent order, you will receive the next pen and 4 needles.

How to re-order Wegovy

When you’ve been using Wegovy® for 3 weeks, it’s time to think about ordering your next pen from us. At this time, we’ll send you a reminder to log on and complete a weight loss consultation. 

If you’re responding well to treatment, we’ll prescribe and send you a further pen and 4 needles in a temperature-controlled delivery packaging. It’s important to store these in a refrigerator between 2–8°C. This pack will last you 28 days. As you use the last dose in each pen, remember to return to MedExpress to reorder supplies so you can continue treatment uninterrupted.

Once you’ve been taking Wegovy® for around 6 months, we’ll need to reassess your weight to make sure we can continue to prescribe to you.

Your health and well-being are our top priority, so please reach out to theMedExpress clinical team if you have any concerns while taking Wegovy.

Where to dispose needles

You’ll receive a sharps bin with your first order. This is a special waste bin that’s used to store sharps material, like needles, until it can be safely disposed of. When full, your sharps bin can be collected for disposal by your local council. Once you’ve started treatment, you’ll be able to purchase further sharps bins with new orders. 

About your Wegovy delivery

Once in use, the shelf life of Wegovy® is six weeks. It should be stored under 30°C or, preferably, in a refrigerator (2–8°C). We’ll send your prescription in temperature-controlled packaging that’s designed to keep your Wegovy® at the correct temperature during delivery. Don’t freeze this medication, or use it if it has been frozen. Keep the cap on when the pen isn’t in use to protect it from light. Remove the needle after each use and use a new needle for every injection. 

Side effects

Like all medicines, Wegovy® can cause side effects, including nausea, vomiting, constipation and diarrhoea. Not everybody experiences them, but if you do, they usually settle after a few weeks once you get used to the medication. One of the reasons for the gradual increase in medication every few weeks is to give your body the chance to tolerate the medication so that these side effects are less likely to happen or be less problematic.

Less commonly, it’s thought that Wegovy® can increase gallstone disease. Rarely, it’s possible that it can cause pancreatitis and serious allergic reactions / anaphylaxis. If you develop abdominal pain whilst taking this medication, you should seek medical advice immediately and advise that you are taking this medication. If you develop signs of an allergic reaction, such as difficulty in breathing, rash, swelling of the face, lips or tongue, then you should also seek help immediately. 

Please refer to the patient information leaflet for more information regarding side effects.


The Wegovy® pen system is very easy to use and virtually painless. However, we understand injections aren’t for everyone, so we also prescribe weight loss treatments in tablet form.

Information Leaflet

Patient Information Leaflet

Always read the patient information leaflet before commencing treatment.

Wegovy FlexTouch Injection FAQ

How do you inject Wegovy?

Wegovy® is a once-weekly injection that’s given in the arm, leg or abdomen. It uses a very small, fine needle for a near-painless injection just below the surface of the skin. The Wegovy® pen comes ready to use, with a button that delivers the right amount of medication for your treatment stage. Once you’ve had the injection, remove the needle and dispose of it in a sharps bin.

How long does a pen last?

Each Wegovy® pen contains 4 doses and will therefore last 4 weeks. The strength of the injection is increased every 4 weeks until the maximum dose is reached.

How much weight can you lose using Wegovy?

Wegovy® is one of the most effective weight loss treatments available. When used alongside a modified diet and exercise, studies have shown over almost 85% of people achieved weight loss of 5% or more, 66% achieved weight loss of 10% or more, and almost 50% achieved weight loss of 15% or more.

How long can I use Wegovy?

We need to assess your weight once you’ve been taking Wegovy® for around 6 months. If you’ve lost 5% of your initial weight at that assessment, you are likely to be able to continue using it for up to two years with clinical guidance.

Will you check in with my progress?

Yes, around six months into treatment we will check in with you to find out how your weight loss is going. If you have any queries or concerns at any time, you can contact the pharmacy’s customer services team via the MedExpress website, who will be happy to help you.

What if I can’t tolerate my new dose?

If you experience symptoms such as persistent nausea, vomiting and diarrhoea with your current Wegovy® dose, speak to our customer care team for advice. We may recommend delaying your next dose increase for a few more weeks to see if that helps improve your tolerance. We can also give you tips to help manage any symptoms and get maximum benefit from the medication. It's important to not increase your Wegovy® dose until your body is ready, so make sure you contact MedExpress if you have persistent side effects.

Is Wegovy a licensed weight loss medication in the UK?

Yes, Wegovy® is licensed for weight loss in the UK.

How should Wegovy be stored?

Wegovy® should be stored in a refrigerator and kept at 2–8°C, or in a cooler/ice pack when travelling. Don’t freeze it, or use it if it has been frozen. Keep the cap on when the pen isn’t in use to protect it from light.

What should I do if I’m travelling abroad and taking Wegovy through security?

Use a travel cooler to keep your medication cold while you’re travelling. Keep your Wegovy® pen in your hand luggage, don’t put it in your checked luggage. Make sure you carry a prescription with your name on and the box and/or container your medication comes in to pass through security. You can obtain a letter from the Medexpress team outlining your need for medication and requirements for sharps to be boarded on the plane.

What should I do if I miss a dose of Wegovy?

If a dose is missed, it should be administered as soon as possible, within 5 days after the missed dose. If more than 5 days have passed, the missed dose should be skipped, and the next dose should be taken on the regularly scheduled day. From there, you can continue the once weekly dosing schedule.

Discreet Service

Plain packaging

Option to collect from
your local Post Office™

local branches

How our service works

It’s quick, easy, and safe to order from MedExpress — your fully regulated, London, United Kingdom based online pharmacy.

Free online

Start a free 2 minutes online consultation with simple questions about your health.


Our UK medical team will then recommend a treatment and issue a free prescription.


Your treatment will be sent direct from our London pharmacy in discreet packaging.

Watch our video to find out more

Our qualified team

All our doctors and pharmacists are based in the UK and are registered with the General Medical Council and General Pharmaceutical Council.

Dr Clare Morrison

General Practitioner (Prescriber)
GMC: 3441561

Avnish Patel

GPhC: 2079950

Rukhsana Deshmukh

Superintendent Pharmacist
GPhC: 2070765