Weight Loss Treatments
We provide access to a range of weight loss injections and weight loss pills to support your weight management journey. You can request treatment online at Mayfair Weight Loss Clinic, subject to approval by our UK-registered prescribers following the completion and assessment of your medical consultation form. View the available treatment options below for more information.
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Benefits of Using Our Online Weight Loss Service
- MHRA-Approved Medicines: We provide prescription weight loss medicines that are approved by the MHRA for use in the UK, subject to individual eligibility and clinical assessment.
- Easy Treatment Access: Complete your consultation online without the need for a face-to-face appointment. Our fully remote service makes it convenient to request treatment from home.
- Clear Pricing: Our treatment prices are transparent with no hidden charges, so you can see what you will pay before completing your request.
- Discreet Delivery: Once prescribed, your weight loss treatment is delivered in discreet packaging to your chosen address.
- Free Ongoing Clinical Support: Our clinical team provides guidance throughout your treatment, including support with treatment use, progress and managing side effects.
- Needles Provided: Needles for injectable weight loss treatments can be supplied upon request where required.
Which Weight Loss Treatments Are Available for Obesity?
Several prescription weight loss treatments are available to support people with obesity in achieving and maintaining a healthier weight. Our service offers weight loss injections and weight loss pills, prescribed following a clinical assessment. Treatment should be used alongside a balanced diet and regular physical activity, with ongoing clinical support to help manage your weight safely and sustainably.
Weight Loss Injections
Weight loss injections target hormonal pathways involved in hunger, appetite regulation and blood sugar control. These effects can support reduced food intake as part of a wider weight management plan.
The Uk-licensed weight loss injections currently available through our service include:
- Mounjaro Injection (tirzepatide) – taken once weekly
- Wegovy Injection (semaglutide) – taken once weekly
- Saxenda Injection (liraglutide) – taken once daily
Weight loss injections may be prescribed following a clinical assessment if you meet the relevant eligibility criteria. This typically includes:
- A BMI of 30 or higher
- A BMI of 27 or higher with a weight-related health condition or risk factor, such as high blood pressure or sleep apnoea
Eligibility can vary depending on the specific medicine, your medical history and individual health circumstances. It is important to provide complete and accurate information during your consultation so a clinician can determine whether weight loss injections are suitable and safe for you.
Weight Loss Pills
Weight loss pills provide a needle-free alternative to injectable treatments and are taken once daily as part of a medically supported weight management plan.
The currently licensed weight loss pill options available in the UK include:
- Wegovy Pill (semaglutide) – taken once daily
- Foundayo Pill (orforglipron) – taken once daily
Both are prescription-only GLP-1 treatments that support appetite regulation. Wegovy Pill contains semaglutide, while Foundayo contains orforglipron. Although they work through similar pathways, they have different dosing schedules and instructions for use.
Eligibility for weight loss pills depends on individual clinical criteria, including BMI, medical history, current medicines and weight-related health conditions. A clinician will assess your suitability before prescribing to determine whether treatment is appropriate for you.
Weight loss pills should be used alongside a balanced, reduced-calorie diet and regular physical activity. Our clinicians also provide ongoing support with treatment use, nutrition, managing potential side effects and maintaining healthy lifestyle habits throughout your weight management journey.
Weight Loss Injections Comparison
If you are unsure which weight loss injection may be most suitable for you, we have provided a comparison of the three most commonly prescribed treatments. You can also speak with one of our doctors, who can assess your circumstances and help determine the most appropriate option for you.
| Feature | Mounjaro Injection | Wegovy Injection | Saxenda Injection | Wegovy Pill | Foundayo Pill |
|---|---|---|---|---|---|
| Active Ingredient | Tirzepatide (GLP-1 and GIP receptor agonist) | Semaglutide (GLP-1 receptor agonist) | Liraglutide (GLP-1 receptor agonist) | Semaglutide (GLP-1 receptor agonist) | Orforglipron (GLP-1 receptor agonist) |
| How does it work? | Targets GLP-1 and GIP to regulate appetite | Targets GLP-1 to regulate appetite | Targets GLP-1 to regulate appetite | Targets GLP-1 to regulate appetite | Targets GLP-1 to regulate appetite |
| Dosage Schedule | Starts at 2.5 mg, gradually increased | Starts at 0.25 mg, gradually increased | Starts at 0.6 mg, gradually increased | Starts at 1.5 mg, gradually increased | Starts at 0.8 mg, gradually increased |
| How often do you take it? | Once weekly | Once weekly | Once weekly | Once daily | Once daily |
| How do you take it? | Using a pre-filled injection pen | Using a pre-filled injection pen | Using a pre-filled injection pen | As an oral tablet | As an oral tablet |
| Flexibility / Food Requirements | Can be taken on a full or empty stomach. No fasting required. | Can be taken on a full or empty stomach. No fasting required. | Can be taken on a full or empty stomach. No fasting required. | Take on an empty stomach with up to 120 ml water. Wait 30 minutes before food, drinks or medicines. | Can be taken on a full or empty stomach. No fasting required. |
| Effectiveness (Clinical Studies) | Up to 22.5% body weight reductionover 72 weeks | Up to 20.7% body weight reductionover 72 weeks | Up to 8% body weight reductionover 56 weeks | Up to 16.6% body weight reductionover 64 weeks | Up to 12.4% body weight reductionover 72 weeks |
| Cost | From £189.00 | From £139.00 | From £74.99 | From £139.00 | From £99.00 |
| Very Common Side Effects | Nausea, diarrhoea, vomiting, constipation and stomach-related symptoms | Nausea, diarrhoea, vomiting, constipation, headache and stomach-related symptoms | Nausea, diarrhoea, vomiting, constipation, headache and feeling weak or tired | Nausea, diarrhoea, vomiting, constipation and stomach-related symptoms | Nausea, diarrhoea, vomiting, constipation and stomach-related symptoms |
| Prescription only? | Yes | Yes | Yes | Yes | Yes |
Weight Loss Injections Overview
Wegovy (Semaglutide)
Wegovy is a once-weekly injectable weight loss treatment that contains semaglutide, a glucagon-like peptide-1 (GLP-1) receptor agonist.
How Wegovy works
Wegovy mimics the action of the natural GLP-1 hormone, which is released in the gut after eating. This hormone communicates with the brain to promote feelings of fullness and reduce hunger. It also supports blood sugar regulation by stimulating insulin release.
How to take Wegovy
Wegovy is administered via a subcutaneous injection once a week. Treatment begins at 0.25 mg, with the dose gradually increased over approximately 20 weeks to help the body adjust. The maintenance dose is typically 7.2 mg weekly, though in some cases it may differ depending on clinical guidance.
How Effective is Wegovy
Clinical studies show people can lose around 20.7% of their body weight after around 72 weeks on the 7.2 mg dose. Results vary between individuals.
Semaglutide was originally used in lower doses under the name Ozempic for type 2 diabetes. Wegovy contains a higher, weight-management-specific dose and is licensed for obesity treatment. Type 2 diabetes medications are not recommended for weight loss use outside their approved indications.
Mounjaro (tirzepatide)
Mounjaro is a once-weekly injection used for weight management and type 2 diabetes, containing the active ingredient tirzepatide.
How Mounjaro works
Tirzepatide is a dual receptor agonist, meaning it acts on both GLP-1 and glucose-dependent insulinotropic polypeptide (GIP) pathways. These hormones are naturally released after eating and help regulate appetite, satiety, and blood sugar levels. By enhancing these signals, Mounjaro reduces hunger and supports calorie reduction.
Because Mounjaro and Wegovy use different active ingredients, individuals may respond differently and experience varying side effect profiles.
How to take Mounjaro
Mounjaro is injected once weekly, typically into the abdomen or thigh. Treatment starts at 2.5 mg per week and is gradually increased every few weeks as tolerated, up to a maximum maintenance dose of 15 mg weekly.
How Effective is Mounjaro
Clinical trials show that Mounjaro can result in significant weight loss, with participants losing up to 22.5% of their starting body weight after around 72 weeks at the highest dose.
Saxenda (liraglutide)
Saxenda is a once-daily injectable weight loss treatment containing liraglutide, another GLP-1 receptor agonist.
How Saxenda works
Saxenda mimics the GLP-1 hormone naturally released after eating. It signals the brain to reduce appetite and increase feelings of fullness. It also slows gastric emptying and helps regulate blood sugar by enhancing insulin secretion when needed.
How to take Saxenda
Saxenda is injected once daily under the skin, usually in the abdomen, thigh, or upper arm. Treatment begins at 0.6 mg per day and is increased weekly over 5 weeks until the maintenance dose of 3 mg daily is reached. This gradual titration helps reduce side effects and improve tolerability.
How Effective is Saxenda
Clinical trials indicate that Saxenda can help individuals lose approximately 8–10% of their starting body weight over 56 weeks when combined with a reduced-calorie diet and regular physical activity. Results vary depending on adherence to treatment and lifestyle changes. Liraglutide was originally developed at lower doses for type 2 diabetes under the brand name Victoza. At higher doses, it is specifically licensed for weight management as Saxenda.
Weight Loss Pills Overview
Wegovy Pill (Semaglutide)
Wegovy Pill is a once-daily oral weight loss treatment containing semaglutide, a glucagon-like peptide-1 (GLP-1) receptor agonist. It provides a needle-free alternative for eligible adults who prefer a tablet rather than a weekly injection.
How Wegovy Pill Works
Semaglutide mimics the action of the natural GLP-1 hormone, which helps regulate appetite and food intake. By activating GLP-1 receptors, Wegovy Pill can reduce hunger, increase feelings of fullness and support blood sugar regulation.
How to Take Wegovy Pill
Wegovy Pill is taken once daily. Treatment starts at 1.5 mg daily for 30 days before increasing to 4 mg, followed by 9 mg and then the maintenance dose of 25 mg. Each dose level is generally taken for 30 days before increasing. The tablet should be taken on an empty stomach after fasting for at least 6 hours, with up to 120 ml of water. Wait at least 30 minutes before eating, drinking or taking other oral medicines.
How Effective Is Wegovy Pill?
Clinical studies found that oral semaglutide resulted in an average body weight reduction of approximately 16.6% over 64 weeks at the 25 mg dose in adults with overweight or obesity when used alongside lifestyle changes. Individual results can vary depending on factors such as treatment adherence, dose, diet and physical activity.
Foundayo Pill (Orforglipron)
Foundayo is a once-daily oral weight loss treatment containing orforglipron, a non-peptide GLP-1 receptor agonist. It provides another needle-free treatment option for eligible adults with obesity or overweight and weight-related health conditions.
How Foundayo Works
Orforglipron activates GLP-1 receptors involved in appetite regulation and blood glucose control. This can help reduce hunger, increase feelings of fullness and support lower food intake as part of a wider weight management plan.
How to Take Foundayo
Foundayo is taken once daily and can be taken at any time of day, with or without food. Treatment starts at 0.8 mg daily for 30 days before increasing to 2.5 mg. Further dose increases may be recommended according to the prescribed dosing schedule, individual response and tolerability.
How Effective Is Foundayo?
Clinical studies found that orforglipron achieved an average body weight reduction of approximately 12.4% over 72 weeks in adults with obesity or overweight. Results vary between individuals, and treatment should be used alongside a reduced-calorie diet and increased physical activity as part of a comprehensive weight management approach.
Side Effects of Weight Loss Treatments
Weight loss injections and weight loss pills can cause side effects, although these vary depending on the medicine, dose and individual response. Digestive symptoms are among the most commonly reported, particularly when starting treatment or increasing the dose.
Common side effects across these weight loss treatments may include:
- Nausea
- Vomiting
- Diarrhoea
- Constipation
- Abdominal pain or discomfort
- Indigestion
- Reflux or heartburn
- Headache
- Dizziness
- Hair loss
- Injection-site reactions
- Fatigue
- Low blood sugar, particularly when used with certain diabetes medicines such as insulin or sulfonylureas
Some side effects are specific to certain treatments. Injectable medicines may cause reactions at the injection site, while other effects can vary according to the active ingredient, dose and medicines taken alongside treatment.
Not everyone will experience side effects, and their frequency and severity can differ between Mounjaro, Wegovy Injection, Saxenda, Wegovy Pill and Foundayo. Always read the patient information leaflet supplied with your medicine for treatment-specific side effects and warnings. Speak with our healthcare professional if you experience persistent, severe or concerning symptoms.
Physical Changes During Weight Loss
Significant or rapid weight loss can lead to physical changes that are not necessarily side effects of the medication itself. As body weight decreases, some people may notice looser skin or changes in the appearance of stretch marks, particularly following substantial weight loss.
Changes in body weight can also affect menstrual cycles. Being overweight may contribute to irregular or missed periods, while losing weight may temporarily cause further changes in the timing or regularity of periods. As weight stabilises following weight loss treatment, menstrual cycles may become more regular for some women. Speak with a healthcare professional if menstrual changes persist or cause concern.
Can I Switch Weight Loss Treatments?
Yes, switching between treatments may be possible if another option is more suitable for your needs. However, these medicines are not directly interchangeable. A clinician must review your current treatment, dose, medical history and response before approving a change.
If a switch is suitable, our clinician will advise when to take your final dose of your current medicine and when to begin the new treatment. The starting dose and any gap between treatments will depend on the medicines involved and your individual circumstances.
Switching from Mounjaro to Wegovy
Switching from Mounjaro to Wegovy may be considered because of treatment response, side effects, availability, cost or individual preference. Both are once-weekly injections, but they contain different active ingredients and work differently. Mounjaro contains tirzepatide and targets GLP-1 and GIP receptors, while Wegovy contains semaglutide and targets GLP-1 receptors.
If you request a switch, a clinician will assess your medical history, current Mounjaro dose and eligibility for Wegovy. If approved, you will be advised which Wegovy dose to start and when to take it after your final Mounjaro injection.
Switching from Wegovy to Mounjaro
You may be able to switch from Wegovy to Mounjaro if Mounjaro is considered more appropriate following a clinical assessment. Your current Wegovy dose, treatment response, medical history and any side effects will be reviewed before the change is approved.
Mounjaro uses a dual GLP-1 and GIP mechanism, whereas Wegovy acts on GLP-1 receptors. If the switch is approved, our clinician will advise on the appropriate Mounjaro starting dose and when treatment should begin. The dose can then be gradually increased according to the recommended schedule and your response.
Switching from Mounjaro to Saxenda
A switch from Mounjaro to Saxenda may be considered if Mounjaro is not suitable or well tolerated, or if a daily injection is preferred. Mounjaro targets both GLP-1 and GIP receptors, whereas Saxenda contains liraglutide and acts on GLP-1 receptors.
Our clinician will determine when Mounjaro should be stopped and when Saxenda can be started. Saxenda treatment usually begins at a low dose and is gradually increased to help improve tolerability.
Switching from Saxenda to Mounjaro
Switching from Saxenda to Mounjaro may be considered if your current treatment is not providing the desired response or a once-weekly injection would better suit your routine.
Because Saxenda and Mounjaro contain different active ingredients and follow different dosing schedules, they should not be treated as equivalent medicines. A clinician will assess your current treatment and health before recommending an appropriate Mounjaro starting dose and switching schedule.
Can I Switch from Weight Loss Injections to Wegovy Pill?
Yes, switching from a weight loss injection to Wegovy Pill may be possible following a clinical assessment. This provides a needle-free option for people who prefer a daily tablet instead of regular injections.
If you are taking Wegovy Injection at the 2.4 mg once-weekly maintenance dose, you may be able to switch to Wegovy Pill 25 mg once daily. The tablet can be started one week after your final Wegovy injection, subject to approval by our clinician.
If you are taking a different Wegovy Injection dose or another weight loss injection such as Mounjaro or Saxenda, there is no direct dose-for-dose conversion. Our clinician will review your current treatment, dose, response and medical history before advising when to stop your injection and which Wegovy Pill dose to start.
Can I Switch from Wegovy Pill to Foundayo?
Yes, you may be able to switch from Wegovy Pill to Foundayo if a clinician determines that Foundayo is appropriate for you. Wegovy Pill contains semaglutide, while Foundayo contains orforglipron. Both act on GLP-1 receptors but are different medicines with their own dosing schedules and instructions.
Foundayo may appeal to people looking for a daily tablet with more flexible administration because it can be taken with or without food. Our clinician will consider your current Wegovy Pill dose, treatment response, tolerability and when you last took the medicine before recommending how to begin Foundayo.
Can I Switch from Weight Loss Injections to Foundayo?
Yes, it may be possible to switch from a weight loss injection such as Mounjaro, Wegovy or Saxenda to Foundayo following clinical review. Foundayo is a once-daily oral GLP-1 treatment and may provide an alternative for people who prefer a tablet rather than an injection.
Foundayo may be considered for people who prefer an oral treatment option or want to move away from injectable medicines following clinical advice. However, Foundayo and injectable treatments have different clinical evidence and may produce different weight loss results.
The appropriate starting dose and timing will depend on the injection you currently use, your dose, when you last took it and how you have responded to treatment. Foundayo should not be considered a direct dose-for-dose replacement for an injectable medicine. Our clinician will assess whether changing treatment is appropriate and provide instructions on stopping your current medicine and starting Foundayo safely.
Why Testing Cholesterol and Blood Sugar Matters
Your weight is influenced by more than diet and exercise alone. Blood sugar and cholesterol levels play an important role in how your body uses and stores energy. Checking these markers can help identify factors that may affect weight management and overall health.
HbA1c (Blood Sugar)
HbA1c measures the amount of glucose attached to red blood cells. It shows your average blood sugar levels over the past few months and helps identify prediabetes or diabetes. When your body does not regulate glucose effectively, sugar can build up in the bloodstream.
Higher HbA1c results may indicate an increased risk of diabetes and can also affect energy levels and weight management.
Cholesterol (Heart Health)
Cholesterol is a naturally occurring fat produced by the liver and found in some foods. It helps your body produce hormones, vitamin D and bile, which supports digestion.
However, having high levels of certain types of cholesterol can increase health risks. The two main types are:
- HDL (good cholesterol) – helps remove excess cholesterol from the bloodstream
- LDL (bad cholesterol) – can build up in arteries and increase the risk of heart disease
Your test may also check triglycerides, another type of fat found in the blood. High triglyceride levels can increase the risk of heart attack and stroke.
What Your Results Mean
Your results provide insight into how your body is managing blood sugar and fats. If your results fall outside the healthy range, our doctors can explain what they mean and advise on suitable next steps, which may include dietary changes, lifestyle adjustments or further testing.
Understanding your results can help you make informed decisions about your health and support your weight management journey.
Alternatives to Weight Loss Medications
Lifestyle changes can support weight loss without medication and remain important when using prescription treatment. A balanced diet and regular physical activity can help with long-term weight management and overall health.
Diet
Reducing your calorie intake can help you lose weight by ensuring your body uses more energy than you consume. As a general guide, men need around 2,500 calories per day and women around 2,000, although individual needs vary. The NHS advises that reducing daily intake by around 600 calories can support gradual weight loss. Checking food labels and choosing balanced, nutritious meals can help you manage your calorie intake.
Physical Activity
Regular exercise can support weight loss by increasing the amount of energy your body uses. Aim for at least 150 minutes of moderate activity each week, such as brisk walking, cycling or swimming. Alternatively, aim for at least 75 minutes of vigorous activity, such as running, lifting heavy weights, football, basketball or boxing.
Staying active can also improve cardiovascular fitness, support healthy blood pressure and reduce the risk of type 2 diabetes. Regular exercise may also benefit your mood, sleep quality and energy levels.
FAQs About Weight Loss Treatments
Who is eligible for weight loss medication?
Each weight loss medication has its own prescribing requirements. A clinician will review your medical history and any current medications to ensure the treatment is appropriate and safe for you.
If you request treatment through our service, our doctors will prescribe it if you meet the eligibility criteria. If you are not eligible, we can discuss suitable alternatives that work in a similar way.
How do weight loss injections work?
Weight loss injections work by mimicking natural hormones in the body that regulate hunger and appetite.
GLP-1–based treatments (such as semaglutide and liraglutide) and dual-action treatments that also target GIP work by sending signals to the brain that increase feelings of fullness after eating, even when less food is consumed. They also slow down how quickly the stomach empties, helping you feel fuller for longer.
Many people find it difficult to reduce calorie intake or snack less when dieting because hunger signals remain strong. By reducing appetite, weight loss injections can make it easier to follow a reduced-calorie diet and support weight loss efforts.
What weight loss treatment is best for me?
The most suitable weight loss treatment depends on several factors, including your BMI, medical history, current medications, and personal preferences
If you are unsure after reading the information provided, you can speak with one of our doctors. We can assess your situation and help you choose the most appropriate treatment option for you.
Can I switch from one weight loss injection to another?
Yes, switching from one weight loss injection to another is possible with medical approval. You usually need to stop your current treatment and wait about 7 days before starting the new one, but the exact timing and dose depend on your doctor’s guidance. A clinician will review your health history to confirm the new treatment is suitable and determine the correct starting dose based on your previous medication.
Who is eligible for weight loss medication?
Treatment suitability depends on factors such as BMI, health conditions and medical history. A clinician will review your information to confirm whether a weight loss medicine is appropriate for you.
How do weight loss treatments work?
Weight loss treatments influence hormone pathways involved in appetite regulation and metabolism. GLP-1 treatments help control hunger signals, while Mounjaro also targets GIP. These effects can support weight management alongside healthy lifestyle changes.
What weight loss treatment is best for me?
The most suitable treatment depends on your BMI, medical history, current medicines, weight loss goals and preferences. Some people may prefer injections, while others may choose tablets. A clinician can review your circumstances and recommend the most suitable option.
Are weight loss treatments safe?
Weight loss treatments are considered safe for suitable patients when prescribed after a clinical assessment. A clinician will review your health history and medications before prescribing. Like all medicines, they may cause side effects, and medical guidance helps ensure safe and appropriate use.
How long will I need to take weight loss medication?
Treatment duration varies depending on your weight loss goals, response and ongoing suitability. Factors such as your starting weight, chosen medicine, dose and lifestyle habits can influence results. Our clinician will monitor progress and advise whether continuing or adjusting treatment is appropriate.
Can I switch between weight loss treatments?
Yes, switching between weight loss injections and weight loss pills may be possible after clinical review. These treatments are not directly interchangeable, so a clinician will assess your current medicine, dose, medical history and response before advising on the safest switching approach.
What happens when you stop taking weight loss medication?
When you stop weight loss medication, your appetite may gradually return, which can make maintaining weight loss more challenging. Some people may regain weight after stopping treatment. Continuing healthy eating habits and regular activity can help support long-term weight management.
What GLP-1 medications are approved for weight loss in the UK?
GLP-1 and related weight loss treatments available in the UK include Mounjaro (tirzepatide), Wegovy Injection (semaglutide), Wegovy Pill (semaglutide), Saxenda (liraglutide) and Foundayo (orforglipron). Each treatment has different ingredients, dosing schedules and eligibility requirements.
Information on this page
- Who is eligible for weight loss medication?
- How do weight loss injections work?
- What weight loss treatment is best for me?
- Can I switch from one weight loss injection to another?
- Who is eligible for weight loss medication?
- How do weight loss treatments work?
- What weight loss treatment is best for me?
- Are weight loss treatments safe?
- How long will I need to take weight loss medication?
- Can I switch between weight loss treatments?
- What happens when you stop taking weight loss medication?
- What GLP-1 medications are approved for weight loss in the UK?
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