How Medical Cannabis Is Prescribed in the UK: The Process Explained

Medical cannabis has been legally prescribable in the UK since November 2018, following changes to Schedule 2 of the Misuse of Drugs Regulations. Despite this, many patients remain uncertain about the process — who can prescribe, what happens at a consultation, and how long the whole journey takes. This guide walks through the complete prescription pathway in 2026.

Who Can Prescribe Medical Cannabis in the UK

Only specialist doctors on the General Medical Council (GMC) register can prescribe medical cannabis in the UK. General practitioners (GPs) are not permitted to initiate cannabis prescriptions — they can only refer patients to a specialist clinic. The specialist must be working within their area of expertise: for example, a neurologist prescribing for epilepsy, or a pain consultant prescribing for chronic pain.

This differs from some other countries where any licensed physician can prescribe. In the UK, the Schedule 2 controlled drug status of most cannabis-based medicinal products (CBMPs) means the specialist requirement is strictly enforced by the Medicines and Healthcare products Regulatory Agency (MHRA).

In 2024 and 2025, several regulatory clarifications from the Care Quality Commission (CQC) tightened oversight of online cannabis clinics, requiring clinicians to demonstrate genuine specialist expertise and not simply act as prescribers-for-hire. Reputable clinics such as Curaleaf, Lyphe, Mamedica, and Releaf comply fully with this framework.

The Step-by-Step Prescription Process

1. Initial eligibility check: Most UK cannabis clinics offer a free online eligibility screening — typically a 5-minute questionnaire covering your condition, treatment history, and medications. You usually need to have tried at least two conventional treatments without adequate relief.
2. Booking a specialist consultation: Once deemed eligible, you book a video or telephone consultation with a specialist. Wait times vary from same-day (Releaf) to one to two weeks at busier clinics.
3. The consultation (30 to 60 minutes): The specialist reviews your medical history, previous treatments, symptom burden, and goals. They may request GP records or previous specialist letters. You should bring a list of all current medications, as cannabinoids interact with several drug-metabolising enzymes (CYP450 system).
4. Prescription decision: If the specialist considers medical cannabis appropriate, they issue a private prescription on a Schedule 2 prescription form — distinct from standard NHS prescriptions. They will also specify the product (flower, oil, capsule), strain, potency, and method of administration (typically dry herb vaporiser for flower).
5. Dispensing: The prescription is sent to a licensed pharmacy — most commonly Dispensary Green, Montu Pharma, or a direct-to-patient pharmacy partner. Dispensing typically takes 24 to 72 hours. Products are delivered to your home in discreet packaging.
6. Follow-up consultations: Prescriptions are typically issued for 28 to 30 days at a time. Follow-up consultations (usually 15 to 20 minutes) are required to renew the prescription. Most clinics charge £30 to £75 per follow-up.

Costs and What to Expect to Pay

Medical cannabis in the UK is almost entirely private — NHS prescriptions for CBMPs remain extremely rare in 2026. Typical costs are:

• Initial consultation: £50 to £200 depending on clinic and specialist seniority
• Monthly prescription (flower): £80 to £250 depending on product and quantity (typically 10 to 30g per month)
• Monthly prescription (oil): £60 to £180 per month
• Follow-up consultations: £30 to £75 monthly or quarterly

Compare clinic fees and services on the LeafMe clinic directory, or use the budget calculator to estimate your monthly spend.

Timeline: From First Search to First Prescription

For most patients, the realistic timeline is:

• Day 1 to 3: Eligibility check and consultation booking
• Day 3 to 14: Specialist consultation (varies by clinic)
• Day 14 to 17: Prescription issued and sent to pharmacy
• Day 17 to 20: Product delivered to your home

Some fast-access clinics (Releaf, Alternaleaf) offer consultations within 24 hours, meaning some patients receive their first prescription within a week. For complex cases requiring records from previous specialists, the process may take three to four weeks.

For a broader overview of conditions treated and available products, visit the conditions directory or browse available products by type.

Common Reasons for Prescription Refusal and How to Prepare

Not every consultation results in a prescription. The most common reasons for refusal include: inadequate treatment history (not having tried conventional options first), unstable mental health conditions where THC could be contraindicated, active substance misuse issues, and pregnancy or breastfeeding. Patients with a personal or immediate family history of psychosis require particularly careful assessment before being prescribed high-THC products.

To maximise your chances of a productive consultation, bring a written record of all conditions, medications, and treatments you have tried. GP summary records are helpful — most clinics can assist in obtaining these. Being specific about your symptom burden and how it affects daily functioning will help the specialist assess your case accurately. If your first consultation does not result in a prescription, ask the clinician to document their reasoning so you can address it at a follow-up or with a second specialist opinion.