results found...

Weight Loss

Welcome to Prescription Doctor, your trusted partner in achieving weight loss and improving your overall health. We understand the importance of taking control of your weight, and our dedicated healthcare professionals are here to support you every step of the way.

View treatments Read more Learn how we work
Discreet and private service
No prescription required
How Our Service Works
Fill simple medical questionnaire
Prescriber reviews and issues prescription
Medication sent In discreet packaging
Available Treatments
Wegovy Semaglutide Injection Pens 2.4mg


Rated 0 out of 5 based on 0 reviews
  • Lowers blood sugar
  • Weekly injection
  • Specialist Consultation Included


Rated 0 out of 5 based on 0 reviews
  • Approved Weight Loss Treatment
  • Suitable for adults with a BMI of +30kg/m²
  • Pre-filled injection pen
Mysimba 8mg/90mg weight loss 112 tablets


Rated 1.0 out of 5 based on 1 reviews
  • Helps weight loss
  • Lowers LDL-cholesterol
  • Secure and discreet delivery
Xenical 120mg orlistat weight loss pills 84 hard capsules

Xenical (Orlistat)

Rated 3.5 out of 5 based on 4 reviews
  • Clinically tested to be effective and safe
  • Prevents fat from being digested
  • Registered prescribers are on hand
Alli weight loss 60mg 84 capsules

Alli (Orlistat)

Rated 0 out of 5 based on 0 reviews
  • Available without a prescription
  • Prevents absorption of fat
  • Proven weight loss aid
Saxenda pre-filled liraglutide weight loss injection pen

Saxenda Weight Loss Pen

Rated 5.0 out of 5 based on 8 reviews
  • Suppresses appetite
  • Taken once daily
  • Effective weight loss aid

Understanding Weight Loss Treatments

Losing weight is a journey that requires a holistic approach. It involves creating a balance between the calories you consume through food and the calories you burn through physical activity. A healthy diet and regular exercise are crucial, but sometimes, they might not be enough. For those times, medical treatments can provide an essential boost.

Our portfolio includes five clinically proven weight loss treatments: Wegovy, Mysimba, Saxenda, Orlistat, and Alli. Each of these treatments is designed to support your weight loss journey in unique ways, working alongside your diet and exercise regimen to help you achieve your health goals.


Wegovy is a revolutionary weight loss injection developed by Novo Nordisk. It offers a clinically proven approach to managing obesity and is administered once a week. Wegovy works by regulating appetite and metabolism, providing a targeted solution for sustainable weight loss.


Mysimba is a clinically proven weight loss aid designed to help you achieve a healthy weight. Unique for its dual active ingredients, naltrexone and bupropion, Mysimba is especially effective when complemented by a low-calorie diet and consistent physical exercise. The exact mechanism behind Mysimba's effectiveness is not yet fully understood, but it is believed to affect parts of the brain responsible for controlling food intake, energy balance, and the pleasure associated with eating.


Saxenda (liraglutide) is an injectable prescription medicine that can help some adults with excess weight or obesity who also have weight-related medical problems or are obese. It is not a front-line therapy but is typically used when diet and exercise alone have not been sufficient. Saxenda works by mimicking a hormone that targets areas of the brain to regulate appetite and food intake.


Orlistat is a medication that's used in conjunction with a reduced-calorie diet to assist with weight loss. It works by blocking some of the fat you eat from being absorbed by your body. Instead, this fat is eliminated from the body in your stool. It's designed for adults who are overweight and should be used in combination with a doctor-approved exercise, behaviour change, and reduced-calorie diet program.

Alli (60mg)

Alli is a lower-dose, over-the-counter version of Orlistat. With a 60mg dosage, it can be a good choice for adults who are overweight and are committed to maintaining a low-fat, reduced-calorie diet. Alli works similarly to Orlistat, helping to prevent the absorption of fat in your diet and allowing it to pass through your body undigested.

< >

 Wegovy (Semaglutide)Saxenda (Liraglutide)OrlistatAlli
Active IngredientSemaglutideLiraglutideOrlistatOrlistat
How Does It Work?GLP-1 receptor agonist that helps regulate appetite and reduce hunger.GLP-1 receptor agonist that helps regulate appetite and reduce hunger.Inhibits fat absorption in the intestines.Inhibits fat absorption in the intestines.
Weight Loss Potential15-18% within first year with diet and exercise5-10% within first year with diet and exerciseVaries, typically up to 10% of body weight in 6 months.Varies, typically up to 5% of body weight in 6 months.
How to TakeSubcutaneous InjectionSubcutaneous InjectionOral capsuleOral capsule
When to TakeOnce weeklyOnce dailyWith meals containing fat.With meals containing fat.
Dose Change?Yes, dose may be increased gradually.Yes, dose may be increased gradually.NoNo
Is It Prescription?YesYesYes (also available in a lower dose OTC as Alli)No (Over-the-counter)
How Long to TakeAs prescribed by a clinicianAs prescribed by a clinicianAs prescribed by a clinicianAs directed on the label or by a healthcare professional.
License CriteriaApproved for adults with a BMI of 27 or more who have at least one weight-related condition or in those with a BMI of 30 or more.Approved for adults with a BMI of 27 or more who have at least one weight-related condition or in those with a BMI of 30 or more.Approved for adults with a BMI of 28 or more.Approved for adults with a BMI of 28 or more.


Each of these treatments can be a helpful in your weight loss journey. They work best when used in combination with a healthy diet and regular exercise. Before starting any weight loss medication, it's important to discuss your health history and goals with a healthcare professional to determine which treatment is right for you.


Weight Loss Injections

Weight loss injections, often known as 'skinny jabs' or 'weight loss pens,' are medications that help to control your appetite, thereby assisting with weight loss efforts. These treatments are not a 'quick fix' but rather an aid to complement a healthy diet and regular exercise.

How Do Weight Loss Injections Work?

Most weight loss injections like Saxenda work by mimicking the effects of a hormone in your body called GLP-1. This hormone helps to curb your appetite and reduce feelings of hunger.

Administration of Weight Loss Injections

The administration involves a pen-like device that allows you to inject the medication under your skin. They're usually self-administered once daily, independent of meals.

Effectiveness of Weight Loss Injections

Clinical trials have shown that, when combined with a healthy diet and regular exercise, weight loss injections can be effective. The degree of weight loss can vary and depends on several factors.

Weight loss injections are prescribed medication and must be used under the supervision of a healthcare professional. Always consult with our healthcare professional before beginning any new weight loss regimen.

BMI Guidelines for Weight Loss Medication Use

  • Underweight: BMI less than 18.5
  • Normal weight: BMI 18.5 to 24.9
  • Overweight: BMI 25 to 29.9
  • Obesity (Class I): BMI 30 to 34.9
  • Obesity (Class II): BMI 35 to 39.9
  • Severe Obesity (Class III): BMI 40 or higher


Body Mass Index (BMI) is a tool that can indicate whether you're a healthy weight for your height. It doesn't directly measure body fat and may not provide a full picture of your health.

For instance, muscle is denser than fat, so an extremely muscular person might have a higher BMI, even though they're not overweight. Similarly, older people and others who have lost muscle might have a lower BMI, even if they have excess body fat.

Additionally, where you carry your fat matters, belly fat, for example, is more dangerous than fat around your hips and thighs. Therefore, while BMI is a useful starting point, it shouldn't be the only measurement you consider when assessing your health.

Weight loss treatments are typically prescribed for individuals who are either overweight (with a BMI of 28 or more) and have additional health risk factors or obese (with a BMI of 30 or more). For further information, you can refer to the NHS guidelines on Obesity Treatment.

Consult with our online healthcare professional to understand your BMI and its implications on your health and to determine the best course of action for weight management. Remember, every individual is unique, and a healthy, sustainable weight loss plan should be tailored to your personal needs and circumstances.

Your Weight Loss Partner

We're more than just an online pharmacy – we're a partner committed to supporting you on your weight loss journey. Our team is here to answer your questions, provide you with high-quality treatments, and help you make the best decisions for your health. Because at the end of the day, weight loss is about more than just numbers on a scale – it's about empowering you to live your healthiest, happiest life.

Our treatments are available to all UK residents aged 18 and above. If you're ready to take the next step in your weight loss journey, we're here to help. Contact us today to learn more about our treatments and how we can support your weight loss goals.

Safety Information

Before taking any weight loss medication, it's crucial to understand the possible side effects and interactions. Some of these medications may interact with other treatments or have specific dietary requirements. Always read the patient information leaflet provided with the medication or consult with a healthcare professional if you have any concerns or questions.

Please remember all medication should be taken as directed by your healthcare provider. Misuse or overdose can lead to unwanted side effects and can be dangerous. Your health and safety are our top priority.

Frequently Asked Questions (FAQs) About Weight Loss Treatments

Who Can Use Saxenda, Orlistat, and Alli?

These medications are suitable for adults over 18 years old who are either overweight (with a BMI of 28 or more and have additional health risk factors) or obese (with a BMI of 30 or more). A healthcare professional should be consulted before starting any of these treatments.

How Do Saxenda, Orlistat, and Alli Work?

Saxenda works by mimicking a hormone that targets areas of the brain to regulate appetite. Orlistat and Alli work by preventing the absorption of some of the fats you eat, allowing them to be eliminated from the body in your stool.

Can I Use These Weight Loss Treatments If I Have Other Health Conditions?

It depends on the specific health condition. Certain conditions may contraindicate the use of these treatments or require dosage adjustments. Always consult with our online healthcare professional to understand if these treatments are suitable for you.

What Side Effects Can These Weight Loss Treatments Cause?

Potential side effects vary by medication and can include nausea, diarrhoea, constipation, low blood sugar, and others. It's important to read the patient information leaflet for each medication and discuss any concerns with our online healthcare professional.

Can I Use These Treatments While Pregnant or Breastfeeding?

No, these weight loss treatments are not recommended during pregnancy or breastfeeding. Always consult with our online healthcare provider if you are pregnant, planning to become pregnant, or are breastfeeding.

How Long Do I Need to Use These Weight Loss Treatments?

The duration of treatment depends on your response to the medication and your overall weight loss plan. Our online healthcare provider can provide the best guidance based on your individual circumstances.

Will I Regain Weight Once I Stop the Medication?

These treatments are part of a comprehensive weight management program that should include changes in dietary habits and physical activity. Maintaining these lifestyle changes is crucial for keeping the weight off after stopping the medication.

Do I Still Need to Diet and Exercise While Using These Treatments?

Yes, these treatments are intended to be used in conjunction with a reduced-calorie diet and regular physical activity. They can help enhance the effects of these lifestyle changes but are not replacements for them.

Can I Drink Alcohol While Using These Treatments?

Alcohol can contribute to weight gain and may interact with these medications. It's best to limit your alcohol intake while using these treatments and discuss any concerns with our healthcare professional.

Where Can I Get More Information About These Treatments?

You can find more information about these treatments on our website, in the patient information leaflets for each medication, or by consulting with our healthcare professional.

Authored & Reviewed By

Mohamed Imran

Mohamed Imran Lakhi

MPharm - Lead Pharmacist
This content has been written and checked for quality and accuracy by Imran Lakhi is the superintendent pharmacist and founder at Prescription Doctor. He has been at the core of our team.

Published on: 18/01/2017 Reviewed on: 13/10/2023
Customer Service