Is Clonazepam legal in United Kingdom?
- Legal status
- Clonazepam is a Class C controlled drug (Misuse of Drugs Act 1971), placed in Schedule 4 Part I of the Misuse of Drugs Regulations 2001 as a benzodiazepine — a low control tier: legal to possess and use with a valid prescription.
- Consequences if caught
- Possession without a prescription can carry up to 2 years plus a fine; supply or production up to 14 years and an unlimited fine (Class C).
- If prescribed or medical
- Prescribed and dispensed as a licensed benzodiazepine medicine (available on the NHS).
- Documentation
- Schedule 4 Part I benzodiazepines need no personal import/export licence — carry the medicine in original packaging with a copy of your prescription (roughly up to a 3-month supply).
Court records
We have applied to The National Archives for the licence required to analyse Find Case Law records, and will publish outcomes once it is determined.
Source checked Find Case Law, The National Archives · 2026-08-26
Clonazepam in related jurisdictions
Other substances confirmed in United Kingdom
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.
Before you travel
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If you’re detained or arrested abroad
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