What does Schedule 2 mean for a cannabis prescription?

Schedule 2 is the reason your prescription has rules that an antibiotic does not: how long it lasts, how it is written, how the pharmacy stores it, and what you can do with it at a border.

Class and schedule are two different things

Class comes from the Misuse of Drugs Act 1971 and determines penalties for unlawful possession and supply. Schedule comes from the Misuse of Drugs Regulations 2001 and determines what lawful medical and research use is permitted.

Cannabis remains a Class B drug. That has not changed, and it is why unlawful possession is still an offence with the same penalties as before.

What changed in November 2018 is the schedule. Cannabis-based products for medicinal use moved from Schedule 1, which is essentially research-only and requires a Home Office licence, to Schedule 2, which is where morphine and methylphenidate sit. Schedule 2 is a working medical category.

Why Schedule 2 carries these controls

The controls exist because Schedule 2 is where the law places drugs that have a genuine medical use but also a recognised potential for misuse. The schedule is a deliberate compromise: it opens the door to lawful prescribing while keeping close records of what is prescribed, dispensed and held, so that supply can be accounted for at every step.

That is why the same category contains medicines as familiar as morphine and methylphenidate. None of the requirements are specific to cannabis, and none of them imply anything unusual about your treatment; they are the standard machinery that allows a controlled drug to be used as a medicine at all. Seen that way, the extra rules are a sign that the system is treating your medicine as a medicine, not as something exceptional.

For you, the practical effect is mostly administrative. Prescriptions are written in a particular way, pharmacies handle the medicine under stricter rules, and the rhythm of repeat supply is shaped by the 28-day convention rather than by exactly how much you happen to need at a given moment.

What Schedule 2 changes about the prescription

A controlled drug prescription carries requirements an ordinary one does not, and a pharmacy cannot dispense against a prescription that fails them.

• The prescription must state the form, the strength where relevant, and the total quantity in both words and figures
• It must be signed and dated by the prescriber
• It is normally treated as valid for 28 days from the appropriate date
• Pharmacies keep controlled drug registers and store Schedule 2 medicines in a controlled drugs cabinet

The 28-day convention is the one patients notice, because it shapes the rhythm of repeat supply. It is a limit on how long a prescription stays dispensable, not a limit on how much may be prescribed at once. In practice it means a fresh prescription is needed for each cycle of supply, so it is worth requesting repeats in good time rather than close to running out, and building a little slack into the timing if you rely on delivery.

The mechanics of repeat supply are covered in How is medical cannabis dispensed and delivered?, and there are glossary entries for Schedule 2 and the 28-day rule.

What it means for carrying your medicine

Lawful possession follows from the medicine having been prescribed to you. There is no permit, and no card — what matters is that the medicine is identifiably yours.

In practice that means keeping it in the container the pharmacy dispensed it in, with the label intact, and not decanting it into something unlabelled. The label ties the medicine to you, the prescriber and the supplying pharmacy, which is exactly what an official would want to see if the question ever arose. Supplying it to anyone else, including a family member with the same condition, is an offence regardless of your own prescription.

What happens in a police encounter is covered in What happens if the police stop you with a prescription?

Travel is where Schedule 2 bites hardest

UK rules on taking controlled drugs abroad are stricter than for ordinary medicines, and the destination country's law governs what happens when you arrive. A UK prescription confers nothing outside the UK.

For longer trips a Home Office personal licence may be required to take a controlled drug out of or back into the UK, and it does not authorise anything in the country you are travelling to. Several popular destinations treat cannabis-based medicines as prohibited imports whatever your paperwork says, and a few treat any cannabis very harshly. The safe habit is to check the destination country's own rules, through its embassy, well before you book, rather than assuming a UK prescription will be recognised.

The detail, including the thresholds and the application, is in Can you travel abroad with a medical cannabis prescription?

Living with a Schedule 2 medicine day to day

Beyond the paperwork, a handful of everyday habits follow from your medicine being Schedule 2, and your clinic and pharmacy will talk you through them. None is onerous, and most are simply good sense for any controlled drug.

• Keep it in the container it was dispensed in, with the pharmacy label intact, so it is identifiably yours.
• Store it securely at home, out of reach of children and of anyone it was not prescribed for.
• Do not share it, even with a family member who has the same condition — supplying a controlled drug to another person is an offence regardless of your own prescription.
• Plan repeats around the 28-day window rather than waiting until you have run out.

Two situations cause the most worry and have guides of their own. What to do in a police encounter is in What happens if the police stop you with a prescription?, and the rules on driving are in Driving with a medical cannabis prescription.

What to do with this

Nothing on this page decides anything about your own case. What decides it is an assessment by a specialist who has seen your records, and the useful preparation is your diagnosis, the treatments you have already tried, and what happened with each.

None of these rules are unusual for a Schedule 2 medicine, and clinics and pharmacies handle them routinely. The consultation itself, and what happens after it, is set out in What is the process to get a medical cannabis prescription?

Patient guide · Written by the Flora House editorial team · Last reviewed: 7 October 2026