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Weight Loss Injections UK NHS: Eligibility, Costs & How to Get Prescribed in 2026
Weight loss injections UK NHS availability has expanded significantly since 2023, with medications like Wegovy (semaglutide) and Mounjaro (tirzepatide) now accessible through NHS prescription for eligible patients. If you’re struggling with obesity and wondering whether you qualify for these breakthrough treatments on the NHS, this comprehensive guide explains everything you need to know about eligibility, the prescription process, waiting times, and alternatives.
[IMAGE: NHS weight loss injection eligibility criteria infographic showing BMI thresholds and health conditions]
What Are Weight Loss Injections Available on the NHS?
Weight loss injections UK NHS services currently offer are GLP-1 receptor agonists, a class of medications originally developed for type 2 diabetes that have proven remarkably effective for weight management. The two primary options available through NHS prescription are:
- Wegovy (semaglutide) – Approved by NICE in 2023 for weight management, administered as a once-weekly injection
- Mounjaro (tirzepatide) – Approved in 2024, this dual-action medication targets both GLP-1 and GIP receptors
- Saxenda (liraglutide) – An older daily injection, now less commonly prescribed due to lower efficacy compared to newer options. For those exploring comprehensive weight management strategies, our guide to best weight loss supplements UK covers evidence-based alternatives that can complement lifestyle changes
NHS Weight Loss Injection Eligibility Criteria 2026
To qualify for weight loss injections on the NHS, you must meet specific criteria set by NICE (National Institute for Health and Care Excellence). The eligibility requirements are:
Primary Eligibility Requirements
- BMI of 35 or above – You must have a body mass index of at least 35 kg/m²
- BMI of 30-34.9 with weight-related health conditions – Such as type 2 diabetes, hypertension, sleep apnoea, or cardiovascular disease
- Evidence of previous weight loss attempts – You must have tried traditional methods (diet, exercise, behavioural changes) without achieving sustained weight loss
Additional Considerations
NHS clinicians will also assess:
- Your commitment to lifestyle changes alongside medication
- Any contraindications or medical conditions that might make treatment unsuitable
- Psychological readiness for treatment
- Whether you’re willing to attend regular monitoring appointments
How to Get Weight Loss Injections on the NHS: Step-by-Step Process
Step 1: Speak to Your GP
Your journey begins with your GP. Book an appointment to discuss your weight concerns and whether you might be eligible for NHS weight loss injections. Your GP will:
- Calculate your BMI and assess your overall health
- Review your weight loss history
- Check for obesity-related health conditions
- Discuss the risks and benefits of weight loss medications
Step 2: Referral to Specialist Weight Management Services
If your GP determines you’re potentially eligible, they’ll refer you to a specialist NHS weight management service. These are typically tier 3 services that provide:
- Comprehensive health assessments
- Nutritional counseling
- Physical activity guidance, including structured programs like HIIT workouts you can do at home
- Psychological support
- Medication management
Step 3: Assessment and Prescription
The specialist team will conduct a thorough assessment before prescribing weight loss injections. This includes:
- Blood tests to check for underlying conditions
- Review of medications and medical history
- Setting realistic weight loss goals
- Education about the medication and how to administer it
Step 4: Ongoing Monitoring and Support
Once prescribed, you’ll need regular follow-up appointments to monitor:
- Weight loss progress
- Side effects
- Adherence to lifestyle changes
- Overall health improvements
NHS Weight Loss Injection Waiting Times in 2026
Waiting times for NHS weight loss injections vary significantly across the UK due to:
- Regional availability – Some areas have well-established tier 3 services, while others have limited capacity
- High demand – The popularity of these medications has created waiting lists in many areas
- Supply constraints – Periodic shortages have affected availability
Current waiting times range from:
- 3-6 months in areas with good provision
- 6-12 months in areas with higher demand or limited services
- 12+ months in some regions with significant capacity constraints
Cost of Weight Loss Injections on the NHS
NHS Prescription Costs
If you’re prescribed weight loss injections on the NHS in England, you’ll pay the standard NHS prescription charge per item:
- £9.90 per prescription (as of 2026)
- Free prescriptions if you qualify for exemptions (over 60, certain medical conditions, low income, etc.)
- Prescription prepayment certificates can reduce costs if you need multiple prescriptions
Note: Prescriptions are free in Scotland, Wales, and Northern Ireland.
Private Prescription Costs
If you don’t qualify for NHS treatment or face long waiting times, private prescriptions cost significantly more:
- Wegovy: £200-£300 per month
- Mounjaro: £150-£250 per month
- Saxenda: £150-£200 per month
Plus initial consultation fees (£50-£200) and ongoing monitoring appointments.