Is THC-P legal in United Kingdom?

Legal status

THC-P (tetrahydrocannabiphorol) is a controlled Class B drug under the Misuse of Drugs Act 1971 — not by name but through the generic control of 'cannabinol derivatives', which the Act defines to include the tetrahydro derivatives of cannabinol and their 3-alkyl homologues; as a THC homologue carrying a seven-carbon (heptyl) side chain in place of THC's pentyl chain, THC-P falls within that generic text. The ACMD confirmed (report of 22 May 2025) that 'THC homologues (compounds with shorter or longer chain lengths)' are already caught as Class B, distinct from HHC/CBD derivatives which sit outside it. This contrasts with cannabis itself, which is separately Class B. No death penalty.

Consequences if caught

Treated as a Class B controlled drug: possession up to 5 years' imprisonment and/or an unlimited fine; production or supply up to 14 years and/or an unlimited fine under the MDA 1971.

If prescribed or medical

THC-P has no marketing authorisation and no recognised medical use; it is a Schedule 1 / Class B substance with no lawful prescription route, available only under a Home Office licence for research.

Documentation

No lawful consumer market once treated as a cannabinol derivative; retail 'THCP' vapes and flower are sold in a legal grey area that the ACMD has recommended closing by updating the generic text. Do not import or carry.

Drug laws and enforcement change and vary within a country. This is not legal advice. Always confirm with United Kingdom’s embassy or official drug authority before traveling; penalties can be severe, including imprisonment.