What does “Specialist initiation” mean?

The rule that only a doctor on the GMC Specialist Register may start a prescription for an unlicensed cannabis-based product.

Specialist initiation in plain English

The rule that only a doctor on the GMC Specialist Register may start a prescription for an unlicensed cannabis-based product.

This was the central safeguard built into the November 2018 change in the law, and it remains the main structural control on access.

It means a GP cannot start treatment, and in practice will rarely take over an existing prescription, because doing so means accepting responsibility for an unlicensed medicine.

Frequently asked questions

What does specialist initiation mean?

The rule that only a doctor on the GMC Specialist Register may start a prescription for an unlicensed cannabis-based product.

Sources and further reading

Every factual statement on this page is drawn from the following public sources. Links open in a new tab and are not affiliated with Flora House.

  1. NICE guideline NG144: Cannabis-based medicinal products
  2. NHS: Medical cannabis (and cannabis oils)
  3. MHRA: The supply, manufacture, importation and distribution of unlicensed cannabis-based products for medicinal use

Patient guide · Written by the Flora House editorial team · Last reviewed: 8 September 2026