Yes. Cannabis-based medicines can be prescribed lawfully in the UK. That does not mean cannabis is generally legal, or that a prescription removes every legal and practical boundary around it.
The useful distinction is simple: a cannabis-based medicinal product prescribed for you is a medicine in a controlled, documented route. Do not treat another person’s prescribed medicine or an unprescribed product as covered by your prescription. The NHS says cannabis possession remains illegal unless the cannabis medicine has been prescribed for you.
This page is general information, not legal advice. If you need advice about a particular issue involving possession, work, housing, travel, policing or a product’s legal status, speak to a qualified legal adviser. Questions about your medicine belong with your prescriber or dispensing pharmacy.
What a prescription changes
A prescription is not a blanket permission for cannabis. It records that a specific medicine has been prescribed for a named person through a medical route.
In practical terms, the medicine should match the prescription and dispensing information. The NHS advises patients to keep prescribed cannabis medicine in its original packaging because the dispensing label identifies the medicine and the person it was prescribed for. Keeping a copy of the prescription, and any clinician’s letter if you have one, can also be useful.
The legal framework uses the term cannabis-based product for medicinal use in humans, often shortened to CBPM. The Home Office explains that CBPMs are controlled medicines and that specialist medical practitioners can prescribe them without needing a Home Office licence themselves.
That is why the wording matters. “Medical cannabis” is a broad search term. A prescribed CBPM is a particular legal and clinical category; it is not simply any cannabis product that somebody hopes will help a symptom.
What a prescription does not change
A prescription does not turn every cannabis product into prescribed medicine. It does not cover a product supplied to somebody else, a product bought outside the prescription route or a product whose contents and status are unclear.
It also does not resolve every question a patient may face. A prescription is not automatic proof that a workplace policy, tenancy rule, border requirement or driving situation has been settled. Those issues depend on facts beyond this article and may need specialist advice. A prescription does not by itself answer whether it is lawful or safe for you to drive; drug-driving rules and your fitness to drive are separate questions. Use current GOV.UK drug-driving guidance and get individual advice where needed.
Nor does a prescription mean a medicine is suitable for another person. NICE says its cannabis-based medicinal-products guidance must be considered alongside individual needs, preferences and circumstances.
If you are considering treatment rather than already prescribed, a condition name alone does not establish that you may qualify for a prescription. MCPH’s medical cannabis qualifying conditions guide explains why a clinical assessment still matters.
Do patients need a medical cannabis licence in the UK?
A patient does not normally apply for a Home Office licence simply to receive medicine supplied on a valid prescription.
This search term often mixes up two different things:
- A prescription for a patient: a clinician may prescribe a suitable cannabis-based medicine within the relevant clinical and legal framework.
- A Home Office licence: this concerns regulated controlled-drug activities such as producing, possessing, supplying, cultivating, importing or exporting controlled drugs. It is separate from the prescription and pharmacy supply route for a prescribed medicine.
The practical patient question is normally whether a clinician considers a cannabis-based medicine appropriate, then how that prescription will be dispensed. For the records and appointment pathway, read the MCPH Patient Guide.
Where can I buy medical cannabis?
If “medical cannabis” means a prescribed cannabis-based medicine, it should come through the prescription and pharmacy supply route arranged for that medicine. A prescription is not a shopping recommendation, and this guide does not compare pharmacies, clinics, sellers or products.
The NHS warns that products sold online may have unknown content or quality, may be illegal in the UK and may be dangerous. It also distinguishes some CBD products sold as food supplements from prescribed cannabis medicines: a consumer product is not automatically a medicine or a substitute for the product on a prescription.
An online listing, social-media recommendation or product called “medical cannabis” does not establish that it is the medicine on your prescription. If you are unsure about a supply or dispensing question, contact the pharmacy named in your prescription arrangements or your prescriber.
Prescribed CBPMs, unprescribed cannabis and CBD are not interchangeable
Prescribed cannabis-based medicine
A prescribed CBPM is supplied for the person named on the prescription. It is handled as a controlled medicine within clinical oversight. The product, patient and dispensing details matter.
Cannabis outside the prescription route
Cannabis remains a Class B controlled drug. The Home Office says it is unlawful to possess, supply, produce, import or export it unless an applicable legal route applies. Calling it medical, or saying it is for a symptom, does not create that route.
CBD products
CBD is often discussed alongside medical cannabis, but it is not one legal or medical category. The Home Office says pure CBD as an isolated substance is not controlled, while the position of a CBD product depends on what it contains and whether it meets relevant requirements. The NHS also notes that CBD products sold in shops have no assured quality or health benefit.
For that reason, do not assume a CBD, online or non-prescribed product is equivalent to your medicine. Ask the clinician or pharmacy responsible for your care if you have questions about a product alongside prescribed treatment.
A simple checklist for patients and carers
If you already have a prescription:
- Keep the medicine in its original packaging with the dispensing label.
- Use the prescription and pharmacy route for medicine and supply questions.
- Keep a copy of the prescription and any relevant clinician letter if you have one.
- Do not assume an online, CBD or non-prescribed product is equivalent to your medicine.
- Get individual legal advice where the question goes beyond the prescription itself.
If you are still deciding whether to explore medical cannabis, start with the Patient Guide rather than a seller’s wording or a social-media post. MCPH’s medical disclaimer explains the limits of the general information on this site.
Sources
: NHS: Medical cannabis (and cannabis oils) : Home Office: Drug licensing factsheet: cannabis, CBD and other cannabinoids : NICE NG144: Cannabis-based medicinal products
