Medical Cannabis Eligibility UK — Do You Qualify?

The Core Eligibility Rule

Medical cannabis in the UK is available as a specialist medicine — not a first-line treatment. The clinical standard applied by UK prescribers follows NICE guidance and requires all of the following criteria to be met:

Criterion	Detail
Documented diagnosis	You must have a confirmed, documented diagnosis of a condition for which medical cannabis has recognised therapeutic value. GP letters, hospital discharge summaries or specialist referral letters are accepted.
Two failed conventional treatments	You must have tried at least two appropriate conventional treatments (e.g. medications, therapies) without achieving adequate symptom relief. Both failed treatments must be documented. This is the NICE criterion applied by most UK private clinics.
Age 18 or over	Private prescriptions are available to adults aged 18 and above. Children may access cannabis-based medicines via NHS specialist channels only — specifically for severe treatment-resistant epilepsy (Epidyolex).
No relevant contraindications	Certain conditions — including active or historical psychosis, severe cardiovascular disease, pregnancy or breastfeeding — may disqualify a patient. A clinician will assess these during consultation.
Benefits outweigh risks	The prescribing specialist must determine that the likely benefits of cannabis treatment outweigh the potential risks for your specific case. This is a clinical judgement made on an individual basis.

Which Conditions Qualify?

Private UK clinics routinely prescribe medical cannabis for over 40 conditions. The most commonly treated include the following. Where a dedicated guide exists, click through for full evidence and prescribing information.

Chronic Pain Anxiety & GAD PTSD ADHD Multiple Sclerosis Epilepsy Cancer (Nausea) Fibromyalgia Insomnia & Sleep Parkinson’s Disease Tourette’s Syndrome Crohn’s Disease Endometriosis Arthritis Migraines

This list is not exhaustive. Speak to a specialist clinic if your condition is not listed — many clinics assess eligibility for a wide range of diagnoses.

What Evidence Do You Need?

Gathering the right documentation before your first consultation significantly speeds up the process and strengthens your eligibility case. Most clinics accept scanned or digital copies.

Essential documents

GP letter or referral confirming your diagnosis
Hospital letters, discharge summaries or specialist reports
Full medication history showing treatments tried
Evidence of two failed conventional treatments (dates, doses, outcome)
Any blood test or diagnostic results relevant to your condition

Helpful extras

Pain or symptom diary (last 4–12 weeks)
Details of side effects experienced on previous medications
Any physiotherapy, therapy or other non-drug treatment records
Current repeat prescription details
Photo ID (passport or driving licence)

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Who Cannot Get a Prescription?

Medical cannabis is contraindicated in certain circumstances. A prescribing specialist will review these factors during your consultation and may decline to prescribe where safety concerns outweigh potential benefits.

Active or historical psychosis

A personal or close family history of schizophrenia, psychosis or other severe mental illness is generally considered a contraindication — particularly for THC-containing products. CBD-only formulations may be assessed on a case-by-case basis.

Severe cardiovascular disease

Patients with serious heart conditions including recent myocardial infarction, severe arrhythmia or uncontrolled hypertension may not be suitable candidates due to THC’s cardiovascular effects.

Pregnancy or breastfeeding

Medical cannabis is contraindicated during pregnancy and breastfeeding due to potential effects on fetal and infant development. Clinics will ask about pregnancy status before prescribing.

Under 18 (private route)

Private medical cannabis prescriptions are only available to adults aged 18 and over. Children with severe epilepsy may access cannabis-based medicines via NHS specialist paediatric teams only.

NHS vs Private Eligibility

The routes to medical cannabis in the UK differ significantly between the NHS and private sector. Understanding the distinction helps you identify the fastest and most accessible path for your situation.

NHS — very restricted

Only three specific medicines licensed on the NHS
Epidyolex: childhood epilepsy (Dravet, Lennox-Gastaut)
Sativex: MS-related spasticity
Nabilone: chemotherapy-induced nausea
Requires NHS specialist referral and multidisciplinary approval
Wait times can be lengthy
Cost-effective if eligible — covered by NHS prescription charge

Private clinics — accessible

40+ conditions treated routinely
No GP referral required — self-refer directly
First consultation typically within days
Prescription can be issued at same consultation if eligible
Cost: £150–200 initial consultation, £100–300/month product
Full range of licensed UK flower, oil, capsule and vape products

For a detailed comparison, see our guide: NHS vs Private Medical Cannabis in the UK.

4 Steps to Check Your Eligibility and Apply

Most patients complete the entire process — from first enquiry to receiving their first prescription — within one to two weeks.

1

Gather your medical records

Collect your diagnosis documents, medication history and evidence of at least two failed conventional treatments. Request a GP summary letter if needed — most GPs issue these within a few days.

2

Book a specialist clinic

Choose a GMC-registered UK medical cannabis clinic. Most offer online video consultations. Browse and compare clinics on LeafMe to find one that specialises in your condition.

3

Attend your eligibility consultation

Your specialist reviews your medical history, failed treatments and current symptoms. This typically takes 30–45 minutes online and costs £150–200. If eligible, a prescription may be issued the same day.

4

Receive your prescription

If approved, the prescription is sent to a licensed UK dispensary. Your medication is dispatched discreetly and typically arrives within 1–3 working days. Follow-up appointments are required for ongoing renewal.

Frequently Asked Questions

What conditions qualify for medical cannabis in the UK?

Over 40 conditions are routinely treated with medical cannabis at UK private clinics, including chronic pain, PTSD, anxiety, ADHD, MS, epilepsy, fibromyalgia, insomnia, Parkinson's, Tourette's syndrome, Crohn's disease and cancer-related nausea. The NHS prescribes cannabis for only three specific indications: childhood epilepsy (Epidyolex), MS spasticity (Sativex) and chemotherapy-induced nausea (Nabilone).

Do I need a GP referral to get medical cannabis in the UK?

No — a GP referral is not required to access a private medical cannabis clinic in the UK. You can self-refer directly. However, having documentation from your GP (such as a diagnosis letter or medication history) is strongly recommended as it supports your eligibility assessment. Some clinics may request a GP summary for clinical safety reasons.

How many treatments must I have tried before I qualify?

The standard clinical criterion is that you must have tried at least two conventional treatments for your condition without achieving adequate therapeutic benefit. These treatments should be evidence-based and appropriate for your diagnosis — for example, two different SSRIs for anxiety, or two analgesic classes for chronic pain. Both failed treatments must be documented in your medical records.

Can I get medical cannabis for anxiety or ADHD?

Yes. Anxiety (including GAD and PTSD) and ADHD are among the most frequently prescribed conditions at UK private cannabis clinics. For anxiety, CBD-dominant or balanced formulations are typically preferred. For ADHD, evidence is still emerging but many UK specialists prescribe cannabis as an adjunct or alternative when stimulant medications have been ineffective or caused intolerable side effects.

Can under-18s get medical cannabis in the UK?

The standard minimum age for private medical cannabis prescriptions is 18. However, there are NHS exceptions: children with severe treatment-resistant epilepsy — specifically Dravet syndrome and Lennox-Gastaut syndrome — may be prescribed Epidyolex (a CBD-based medicine) via NHS specialist paediatric neurologists. These cases are handled through the NHS and require multidisciplinary team approval.

How quickly can I get a prescription once I'm deemed eligible?

Once deemed eligible at your initial consultation, many clinics issue a prescription the same day or within 24 hours. The prescription is sent electronically to a licensed UK dispensary or pharmacy, which typically dispatches medication within 1–3 working days. From first booking to receiving your medication, most patients complete the process within one to two weeks.