It can only be prescribed by specialist private clinics, such as the Weight Medics Clinic or the Bodyline Clinic, which are regulated by the Care Quality Commission (CQC) .
It is illegal and dangerous to buy online in the UK without a valid prescription from a registered healthcare professional. While phentermine is not "banned," it is an unlicensed medication in the UK, meaning it is not available on the NHS and can only be prescribed on a "named-patient basis" by specialist private clinics.
Below is a blog post explaining the legal and safe ways to access weight loss support in the UK.