Approximately 1.5 million people in the UK are using weight loss injections like Mounjaro or Wegovy. It’s no surprise, considering weight loss treatments offer an effective solution to help manage weight and improve overall health.
With weight loss support being more accessible than ever, we’ll guide you through the process of accessing these treatments. Find out if you are eligible and what pathways are best for you when deciding how to access weight care medications.
Who Can Access Weight Care Treatments in the UK?
To access weight loss treatments, like Mounjaro or Wegovy, you’ll need to meet certain criteria. This makes sure medications are safe to use and as effective as possible. Usually, weight loss medications are offered to adults with a body mass index (BMI) of 30 or above.
However, you may also be eligible for the weight loss medications if you have a BMI of 27 or higher and have a weight-related health condition. For example, you have type 2 diabetes, high blood pressure or sleep apnoea.
These BMI thresholds are adjusted for people from different ethnic backgrounds. You may be considered for weight loss medication at a lower BMI. This is because people of some ethnic backgrounds are at a higher risk of developing weight-related conditions at a lower body weight.
Your doctor or pharmacist will help guide and assess whether you qualify for these weight loss medications. They will help recommend the most appropriate treatment pathway for you based on your individual health characteristics.
What Weight Loss Treatments are Available?
The weight loss injections currently available are Mounjaro, Wegovy and Saxenda. You inject Wegovy and Mounjaro weekly. You inject Saxenda daily.
These injections work by mimicking the glucagon-like peptide-1 (GLP-1) hormone, which plays a big role in regulating appetite. Mounjaro also mimics another hormone called glucose-dependent insulinotropic polypeptide (GIP).
GLP-1s slow down the digestive process, reducing your appetite. So you feel fuller for longer. This, along with a healthy diet and exercise, will help you lose weight.
There are also weight loss pills available in the UK, like Orlistat. Orlistat supports weight loss by reducing the amount of fat you absorb from your food by around 30%. You take these weight loss tablets three times a day, with each main meal.
How to Access Weight Loss Medication
There are two main pathways for accessing weight loss treatments. You can either get them:
- Through the NHS; or
- Through private services
GLP-1 injections are all prescription-only medications. So a healthcare provider needs to assess you and prescribe the treatment.
You’ll also need a prescription for Orlistat. But you can get Alli, a weight loss pill that contains a lower dose of orlistat, over the counter from your local pharmacy.
On the NHS
The NHS offers access to weight management services as well as medications such as Wegovy, Mounjaro, Saxenda and Orlistat.
You can now get Mounjaro on the NHS in England through your GP, as part of a phased rollout by NHS England. However, you’ll have to meet strict criteria before a clinician can prescribe it to you. This includes a much higher BMI than private prescribing, as well as having multiple weight-related health conditions.
If you cannot get the medication from your GP, they may be able to refer you to a specialist weight management service.
You can only get Saxenda and Wegovy on the NHS through a specialist weight management service. You’ll usually need a GP referral and meet its BMI criteria to start the programme. You’ll also need to show you’ve tried managing your weight through diet and lifestyle changes.
Due to the high demand, accessing weight loss medications through the NHS can take a long time. But the NHS can be a great option if you meet the clinical requirements and are happy to wait for an assessment.
Private Prescription
Private services, including pharmacies and online doctors, can provide quicker access to weight loss treatment than the NHS. However, you will need to pay for your medications.
Going private allows for more flexible appointments. And, depending on the provider, you can get more support with nutrition and lifestyle changes on your weight loss journey. The right choice depends on your budget, how fast you want the medication and your health needs.
To get weight loss treatment from a private provider, you’ll have to fill in an assessment form. They’ll determine whether you’re suitable for the treatment, based on your medical history, lifestyle and current weight. You might have to provide supporting information and images.
If you meet the criteria and are they happy it’s right for you, they’ll prescribe you the medication.
How to Get Weight Loss Medications Safely Online
When choosing to buy weight loss treatments online, it is crucial to use a legitimate UK-registered pharmacy. Choosing a reputable provider ensures that you are receiving a genuine weight loss product.
Look for pharmacies that:
- Are Registered with the GPhC and MHRA. Pharmacies should be registered with the General Pharmaceutical Council (GPhC) or Medicines and Healthcare products Regulatory Agency (MHRA).
- Are UK-based. Look for contact information and a physical address. Ensure that the website also has clear pricing, follow-ups after prescribing and privacy policies.
- Require a Health Consultation. A trustworthy provider will not prescribe these medications without a complete health assessment.
Red Flags: Signs of an Illegitimate Provider
- No consultation or medical questions asked
- Prices seem too good to be true
- No registration with GPhC or MHRA
- Lack of transparency about the medication’s source
Your Next Steps
Now that you understand what treatments are on offer, who can use them and the routes available, the next step is to take action that is right for your health.
If you think that you might be eligible to receive weight loss treatment, book an appointment with your GP or speak to your pharmacist. Whether you opt for NHS support or go private, it is important to remember that weight loss treatments work best when combined with lifestyle changes.
To get weight loss treatment from Simple Online Pharmacy, fill in our online assessment. Our clinicians will assess whether you’re suitable for the treatment. If you are, we’ll prescribe you the medication and deliver it directly to your door.
Taking the first step can feel daunting, but with the right guidance, you can embark on a medical journey that is right for you. If you need any advice, call our team of healthcare professionals on 0141 774 5023.
Weight Loss Injections from £118.98 / Month
Key Takeaways
- Qualification Depends on BMI and Health Conditions. Most people qualify for weight loss treatments if they have a BMI of 30+, or 27+ with a related health issue like type 2 diabetes or high blood pressure. Thresholds may be lower for some ethnic backgrounds.
- Two Routes: NHS or Private. Weight loss medications like Mounjaro and Wegovy can be accessed via the NHS (with strict criteria and longer waits). Or you can get them privately (faster but paid service).
- How to Get Treatment on the NHS. Mounjaro may be available through GPs in England, while Wegovy requires referral to a tier 3 weight management service. Both require prior attempts at lifestyle change.
- Private Prescriptions Offer Faster Access. Going private offers speed and flexibility, but you’ll need to cover the costs of both consultation and medication.
- Make Sure You’re Buying Medication Safely Online. Use only UK-registered pharmacies (GPhC or MHRA approved). Red flags include no health consultation, suspiciously low prices, or lack of contact info.
References
Cogora Limited and Robertson, J. (2025). Around 1.5 million UK citizens used weight-loss jabs in March 2025. [online] The Pharmacist. Available at: https://www.thepharmacist.co.uk/clinical/cardiovascular/around-1-5-million-uk-citizens-used-weight-loss-jabs-in-march-2025/
UK Government (2024). UK medicines regulator warns against buying weight loss medicines without a prescription this New Year. [online] GOV.UK. Available at: https://www.gov.uk/government/news/uk-medicines-regulator-warns-against-buying-weight-loss-medicines-without-a-prescription-this-new-year
NHS (2023). Treatment – Obesity. [online] NHS. Available at: https://www.nhs.uk/conditions/obesity/treatment/
NICE (2025). Overview | Overweight and Obesity Management | Guidance | NICE. [online] Nice.org.uk. Available at: https://www.nice.org.uk/guidance/ng246
Authorship

Authored by Safiyyah Ramzan
Content Writer
Safiyyah started working with Simple Online Pharmacy in 2023 and is currently working toward a degree in medicine. She aims to write clinically-sound content for all.

Medically Reviewed by Richard Wood
Pharmacist / Clinical Specialist
GPhC reg:
2078802
Richard is a pharmacist and content reviewer at Simple Online Pharmacy. He officially joined the team in 2024 after several years of working with the company as a contractor. Prior to that, he spent over 11 years as a community pharmacist, building a strong foundation in patient care.