The cost of weight loss medication varies significantly depending on the medication, the dose you're on, and whether you access it through the NHS or privately. NHS prescriptions cost the standard £9.90 per item in England (free in Scotland, Wales, and Northern Ireland) — but availability is extremely limited. Most people currently access GLP-1 medications through private prescriptions, which range from around £70 to £300 per month.
Over-the-counter orlistat (sold as Alli at the 60mg dose) is the only weight loss medication you can buy without a prescription, typically costing £20–£50 per month from pharmacies.
Private prescription costs as of April 2026. Prices vary by provider and dose.
| Medication | Monthly Cost (Private) | NHS Available? | OTC? |
|---|---|---|---|
| Mounjaro | £159–£329 | Limited (phased rollout) | No |
| Wegovy | £99–£199 | Limited (Tier 3 only) | No |
| Saxenda | £150–£230 | Limited (Tier 3 only) | No |
| Ozempic | £150–£250 | Yes (diabetes only) | No |
| Mysimba | £70–£100 | Yes (specialist services) | No |
| Alli (Orlistat 60mg) | £20–£50 | Yes (120mg Xenical) | Yes (60mg) |
Private costs typically include the medication only. Some providers charge additional consultation fees (£50–£150 for initial assessment). Always check the total cost including delivery, needles (if applicable), and follow-up appointments.
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