Weight Loss Injections UK 2026: Complete Cost Comparison

The UK weight loss injection landscape has expanded significantly since Wegovy's launch in 2023. Here is every licensed injectable weight loss medication available in the UK as of March 2026.

Semaglutide (Wegovy) — Novo Nordisk: - Licensed for weight management at 2.4mg weekly - Available on NHS and privately - The first dedicated obesity injection licensed in the UK since orlistat

Tirzepatide (Mounjaro) — Eli Lilly: - Dual GIP/GLP-1 receptor agonist - Licensed for type 2 diabetes; obesity indication under NICE review - Available privately for weight management; NHS availability expanding

Liraglutide (Saxenda) — Novo Nordisk: - Daily GLP-1 injection (not weekly) - Licensed for weight management - Being gradually superseded by semaglutide but still available

Key points to understand about UK pricing: - NHS prescriptions are free in Scotland, Wales and Northern Ireland - In England, the standard prescription charge is £9.90 per item (2026 rate) regardless of medication cost - Private prescriptions reflect the true cost of the medication plus clinic fees - Online pharmacies often offer lower prices than high-street private clinics - Prices vary significantly between providers — shopping around saves money

The cost difference between NHS and private access is enormous, which is why understanding eligibility criteria is essential before committing to private treatment.

Wegovy remains the most commonly prescribed dedicated weight loss injection in the UK.

NHS cost: - England: £9.90 per prescription (standard charge), or free with a prepayment certificate (£31.25/quarter) - Scotland, Wales, NI: Free - NHS list price: approximately £73.25 per pen (4 doses at maintenance), totalling roughly £293 per month to the NHS

Private clinic costs (typical ranges): - Initial consultation: £50–£200 (some clinics offer free consultations) - Medication cost: £150–£299 per month depending on dose and provider - Monthly monitoring: £0–£50 (varies by provider) - Blood tests: £50–£150 (may be included or separate)

Online pharmacy costs: - Medication: £130–£250 per month - Consultation included in price at many providers - Generally cheaper than face-to-face clinics

Total first-year cost (private): - Budget estimate: £1,800–£3,600 depending on provider - This includes titration (starting on lower doses which are cheaper)

Dose titration and cost implications: Wegovy uses a 5-step titration over 16 weeks: - Weeks 1–4: 0.25mg (cheapest) - Weeks 5–8: 0.5mg - Weeks 9–12: 1mg - Weeks 13–16: 1.7mg - Week 17+: 2.4mg (maintenance, most expensive)

This means the first 4 months are typically cheaper than subsequent months, which is worth factoring into budget planning.

Supply status: Wegovy supply in the UK has stabilised considerably since the shortages of 2024, though some doses may still have intermittent availability issues.

Mounjaro has rapidly gained popularity due to its impressive clinical trial results showing greater weight loss than semaglutide.

NHS availability: - Currently available on the NHS for type 2 diabetes - NICE appraisal for obesity indication expected to conclude in 2026 - Some NHS trusts and ICBs have approved off-label use for weight management - If NICE approves the obesity indication, broader NHS access will follow

Private costs (typical ranges): - Mounjaro 2.5mg: £140–£190 per month - Mounjaro 5mg: £165–£220 per month - Mounjaro 7.5mg: £175–£240 per month - Mounjaro 10mg: £185–£260 per month - Mounjaro 12.5mg: £195–£280 per month - Mounjaro 15mg: £210–£299 per month

Titration schedule: Mounjaro uses a slower titration than Wegovy: - Starting dose: 2.5mg for 4 weeks minimum - Then 5mg for 4 weeks minimum - Increases of 2.5mg every 4 weeks as tolerated - Maximum: 15mg weekly - Most patients stabilise at 10mg or 15mg

Cost comparison with Wegovy: - At maintenance dose, Mounjaro is typically £10–£50 per month more expensive than Wegovy through private channels - However, the greater average weight loss (22.5% vs 15%) may make it more cost-effective per kilogram lost - The slower titration means the total titration period costs spread over a longer time

Important note: Some private clinics advertise Mounjaro at significantly lower prices than those listed above. Be cautious — verify that the medication is sourced from UK-licensed wholesalers and check that the clinic is registered with the CQC (in England) or equivalent regulatory body.

Saxenda was the first injectable GLP-1 agonist licensed for weight management in the UK, and while it has been overshadowed by newer options, it remains available.

Saxenda costs: - Private: £180–£280 per month - NHS: Available in some areas but increasingly replaced by Wegovy - Key difference: Daily injection rather than weekly - Average weight loss: 8% over 56 weeks (lower than semaglutide or tirzepatide)

Why some people still choose Saxenda: - May be available when Wegovy or Mounjaro have supply issues - Some patients prefer daily dosing for more consistent appetite suppression - Shorter half-life means side effects resolve more quickly if you stop - More clinical data due to longer time on market

Emerging options to watch: - CagriSema (semaglutide + cagrilintide): In late-stage trials, expected to outperform semaglutide alone - Retatrutide: Triple agonist (GIP/GLP-1/glucagon) with up to 24% weight loss in Phase 2 - Survodutide: Dual GLP-1/glucagon agonist from Boehringer Ingelheim - Orforglipron: Oral GLP-1 (covered in our dedicated article)

Compounded semaglutide: Some UK providers offer compounded semaglutide at lower prices (£80–£150/month). However, this is a legal grey area in the UK: - The MHRA has issued warnings about unlicensed compounded peptides - Quality and purity cannot be guaranteed to the same standard as licensed products - The General Pharmaceutical Council regulates compounding pharmacies, but oversight is variable - Using compounded versions carries additional risk compared to branded products

Our recommendation: Stick with MHRA-licensed branded products from regulated providers. The cost saving of compounded alternatives is not worth the safety risk.

The difference between NHS and private access to weight loss injections is staggering, making eligibility criteria crucial to understand.

NHS eligibility for Wegovy (NICE TA875): - BMI of 35+ with at least one weight-related comorbidity, OR - BMI of 30–34.9 with type 2 diabetes or pre-diabetes (in some areas) - Must have tried diet and exercise programmes - Prescribed through specialist weight management services - Maximum treatment duration: 2 years on NHS

The NHS waiting list problem: - Average waiting time for specialist weight management: 6–24 months depending on area - Some ICBs have restricted or paused new referrals due to budget pressures - The NHS Long Term Plan aims to expand access, but implementation varies

Annual cost comparison (approximate):

| Route | Annual Cost to Patient | |-------|----------------------| | NHS (England) | £120 (prepayment cert) | | NHS (Scotland/Wales/NI) | £0 | | Private clinic (Wegovy) | £2,000–£3,600 | | Private clinic (Mounjaro) | £2,200–£3,600 | | Online pharmacy (Wegovy) | £1,600–£3,000 |

Strategies to reduce private costs: 1. Subscription services: Some providers offer monthly plans at lower per-dose rates 2. Dose optimisation: Not everyone needs the maximum dose; stabilising at a lower dose saves money 3. Manufacturer savings programmes: Check Eli Lilly and Novo Nordisk websites for patient support 4. Combine with NHS services: Get blood tests through your GP even if medication is private 5. Annual health insurance: Some policies now cover weight management medications

Is private treatment worth the cost? This depends on individual circumstances. For someone with obesity-related health conditions, the cost of treatment may be less than the long-term costs of managing those conditions. However, weight loss injections require long-term use — weight typically returns after stopping.

The sticker price of the medication is only part of the total cost. Understanding hidden fees helps you budget accurately and avoid unexpected expenses.

Common hidden costs:

1. Blood tests: Most reputable providers require baseline and ongoing blood work - Baseline panel: £100–£200 (HbA1c, liver function, kidney function, lipids, thyroid) - Ongoing monitoring: £50–£100 every 3–6 months - Some providers include these; many charge separately

2. Consultation fees: - Initial consultation: £50–£200 - Follow-up consultations: £30–£80 each - Some providers bundle these into the monthly subscription

3. Delivery charges: £5–£15 per delivery for temperature-controlled shipping

4. Sharps disposal: Free NHS sharps bins are available from most pharmacies, but some private providers charge for disposal kits

5. Nutritional support: Dietitian consultations (£50–£100 per session) are recommended but rarely included

Red flags to watch for: - No medical consultation required: Legitimate providers must conduct a clinical assessment - Prices significantly below market rate: May indicate counterfeit or compounded products - No ongoing monitoring offered: Responsible prescribing includes follow-up - Pressure to commit to long contracts: Reputable providers allow monthly cancellation - No registered prescriber details: Check the prescriber is on the GMC register

Questions to ask any provider: - Is the medication sourced from UK-licensed wholesalers? - What blood tests do you require and what do they cost? - What happens if I experience side effects? - Can I adjust my dose without additional consultation fees? - Are you registered with the CQC (or equivalent)?

*This guide is for informational purposes only. Prices are based on market research conducted in March 2026 and may change. Always verify current pricing with providers directly.*