Guides
Weight Loss Medication in the UK: An Educational Guide
How weight loss medicines are licensed, prescribed and supplied in the UK, the NHS and private routes, and how to stay safe.
JoinGRI Editorial Team · · 1 min read
Licensed options
A small number of medicines are licensed in the UK for weight management in adults. They either reduce how much fat is absorbed from food, or act on hormones involved in appetite and fullness. All are intended for use alongside diet and activity changes.
How prescribing works
Prescription-only medicines must be prescribed by a qualified prescriber after an assessment of your health, and supplied by a registered pharmacy. Completing an assessment doesn’t guarantee a prescription — a prescriber may decide a medicine isn’t appropriate.
NHS and private routes
On the NHS, these medicines are offered in line with NICE guidance and local criteria, usually with a weight management programme. Private services can also prescribe after an assessment.
Staying safe
- Check pharmacies on the General Pharmaceutical Council register.
- Be wary of sellers on social media or websites that don’t ask about your health.
- Products labelled “for research use only” are not licensed for human use.
Read more in our weight management guide.
Frequently asked questions
Can I buy weight loss medication without a prescription?
Most weight loss medicines are prescription-only medicines in the UK. They should only be supplied by a registered pharmacy against a valid prescription.
Sources and further reading
- Obesity — treatment — NHS
- Overweight and obesity management (NG246) — NICE
- Semaglutide for managing overweight and obesity (TA875) — NICE
- Tirzepatide for managing overweight and obesity (TA1026) — NICE
- Orlistat — NHS
- Check the register of pharmacies and pharmacy professionals — General Pharmaceutical Council
- Medicines and Healthcare products Regulatory Agency — GOV.UK
This article is for general education only. It isn’t medical advice and doesn’t replace a conversation with a qualified healthcare professional about your own circumstances.