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Medical Cannabis Flower UK: Prices, THC, CBD & Prescription Guide

Medical cannabis flower is available legally in the UK when appropriately prescribed, but it remains a controlled medicine and should not be confused with recreational cannabis or cannabis bought outside the legal prescription system.

Since November 2018, cannabis-based products for medicinal use have been available for specialist prescribing in the UK where clinically appropriate.

Flower forms part of the private medical cannabis market, alongside products such as cannabis oils and certain other formulations.

This guide explains what prescription cannabis flower is, how THC and CBD content differs, how products can be compared and what prospective patients should know about costs and legal use.

What Is Medical Cannabis Flower?

Cannabis flower refers to the dried flowering material of the cannabis plant that has been produced and supplied as a medicinal product within the appropriate regulatory framework.

Prescription products can differ considerably.

Important characteristics include:

  • THC concentration;
  • CBD concentration;
  • cultivar;
  • manufacturer;
  • irradiation status;
  • terpene profile;
  • pack size;
  • price;
  • availability.

These characteristics make flower particularly suitable for a structured product database rather than hundreds of repetitive “strain review” articles.

Prescription medical cannabis is legal when prescribed and possessed in accordance with UK law.

Cannabis-based products for medicinal use were moved into Schedule 2 of the Misuse of Drugs Regulations in November 2018, creating a legal route for appropriate prescribing.

This did not legalise recreational cannabis.

Unauthorised possession, supply and cultivation remain offences.

Can You Smoke Prescription Medical Cannabis?

No.

UK regulations continue to prohibit the smoking of cannabis and cannabis-based products for medicinal use.

Patients prescribed flower should follow the administration instructions provided with their prescription and by their clinical team.

This distinction is important because the existence of legal cannabis flower doesn't mean a medical prescription creates a general exemption allowing cannabis to be smoked.

THC vs CBD: What's the Difference?

Two of the best-known cannabinoids are:

THC (tetrahydrocannabinol)andCBD (cannabidiol).

Different prescription flower products can contain substantially different proportions of each.

THC is responsible for many of cannabis's psychoactive effects and can affect areas such as perception, cognition, coordination and mood