Medical Cannabis in London

Medical cannabis in London: a specialist, integrative approach

Medical cannabis has been a legal medicine in the UK since November 2018, available on private prescription from a specialist doctor. At the London Resilience Clinic it is one carefully chosen tool within a wider integrative plan — never used in isolation — prescribed by one of the UK’s most experienced cannabinoid medicine physicians. This guide explains what medical cannabis is, how it works through the body’s own endocannabinoid system, how it differs from recreational cannabis and over-the-counter CBD, and the conditions it can help.

What medical cannabis is

Medical cannabis products are whole-plant medicines, regulated as unlicensed medicines and controlled drugs in the UK and produced to strict EU GMP pharmaceutical standards. They contain over 100 active cannabinoid compounds thought to work together to deliver their effects — a phenomenon known as the “entourage effect” or herbal synergy — although CBD and THC are the main cannabinoids used for dosing. Different strains, or chemovars, produce different therapeutic effects, which makes medical cannabis a highly personalised medicine in expert hands.

In the UK there are no restrictions on the specific conditions a specialist physician can prescribe it for, and it is typically used for difficult symptoms where standard medications have failed or caused too many side effects. It is not smoked; it comes in oral forms and inhaled vaporised forms, with over 50 different products available, letting the doctor tailor the exact medicine to the individual.

The endocannabinoid system

Cannabinoids are powerful natural molecules that work with our own endocannabinoid system (ECS) — a regulatory network only discovered in the last few decades, whose job is to keep the brain and body in balance (homeostasis). The ECS has receptors in virtually every body system, from the brain and gut to the immune system, and helps control mood, stress and anxiety responses, sleep, pain at both brain and body levels, immune function, gut health and neuroprotection.

Like any regulatory system, the ECS can become disrupted, and ECS imbalance has been linked to conditions ranging from chronic pain, anxiety and depression to IBS, immune dysfunction and seizures. Altered endocannabinoid levels have even been flagged as a possible biomarker in autism, and genetic variants in the enzymes that break down endocannabinoids are associated with ADHD. When the ECS is out of balance, adding plant cannabinoids in medicinal amounts can help restore its function — which is why cannabinoids help with so many seemingly unrelated symptoms.

How medical cannabis differs from recreational cannabis and shop-bought CBD

Medical cannabis is very different from recreational (“black market”) cannabis. It is produced as a medicine to strict pharmaceutical standards, with exact THC and CBD ratios adjusted and titrated for each person, and the goal is symptom relief without feeling impaired — unlike recreational use. It is not smoked, so it does not carry the same risks to the lungs.

It is also different from the hemp CBD wellness oils sold over the counter. Those products contain no measurable THC and are not made as medicines, and for most people they are not effective for conditions such as chronic pain or depression — even the small amount of THC in many medical cannabis products makes a large difference to the medicinal effect without causing impairment. A small percentage of people do not respond well to CBD and need a small THC-dominant product instead, which is one reason people who felt worse on a shop-bought CBD oil can still respond well to properly prescribed medical cannabis. It is also worth knowing THC has a biphasic effect: a carefully judged microdose can relieve anxiety, while too much can worsen it — which is why professional dosing matters, and why illicit cannabis can trigger panic where medical cannabis is used as a treatment.

How medical cannabis can help

Medical cannabis helps patients with difficult-to-control symptoms — and those who have failed other approaches — get a meaningful “quick win”, relief from suffering and overwhelm, and the start of a positive neurological “cascade” that leaves them more able to engage with the rest of a holistic plan. When the brain and body are in less distress, it becomes easier to stick with a mindbody practice, a dietary change or an exercise programme.

Most patients see significant improvement within the first month across multiple symptom clusters — mood, fatigue, stress, pain, sleep and mental function. The actions of cannabinoids, at the right dose for each person, include anti-inflammatory, anti-stress and anti-anxiety effects, immune modulation, sleep-aid effects and neuroprotection in the brain and nervous system. Even a prescription “microdose” of THC can be an effective chronic-pain reliever where other drugs have failed or were not tolerated.

A highly personalised medicine

Medical cannabis is an entire group of medicines, not a single drug, so it must be tailored to each patient. Too much THC can worsen some symptoms in some people, and for symptoms such as fatigue, anxiety or focus, choosing the right cultivar and terpene profile is essential — cannabinoid medicines high in myrcene and linalool can be very calming, for example, while pinene and caryophyllene-rich strains suit daytime brain fog and inflammation. Specific strains and delivery modes are chosen for day versus night use, with a symptom-guided, “low and slow” titration.

Dr Dani Gordon, our medical director, is the most experienced cannabinoid medicine physician in the UK. She trained the first UK specialist prescribers, served as Vice Chair of the UK Medical Cannabis Clinicians Society, and has treated many thousands of patients — first in Canada and, since legalisation, in the UK. She is the author of The CBD Bible, and brings an integrative, individualised approach to cannabinoid therapy that goes beyond simply matching THC and CBD content.

Educational information about a specialist-prescribed treatment; not medical advice or a recommendation to use any specific medicine. This is an information page, not an advertisement, and medical cannabis is prescribed only after a full specialist assessment where clinically appropriate.

The conditions medical cannabis can help

Because it works on a body-wide regulatory system, medical cannabis can help across many of the conditions we treat, always as one part of a wider plan:

• Chronic pain, fibromyalgia and EDS
• Anxiety, depression and OCD
• Chronic fatigue/ME and long covid
• MCAS and mould illness
• Neurodivergence — secondary symptoms of ADHD and autism, such as sensory overload, sleep and anxiety, in neurodivergent people

Safety, children and what to expect

When properly prescribed by an experienced cannabinoid medicine specialist, medical cannabis is very safe and generally well tolerated, often with fewer side effects than standard medications used for the same indications — which matters greatly for the sensitive patients who make up the majority of our clinical population. It is prescribed only after a full specialist assessment, where it is clinically appropriate, and titrated carefully.

In children, it is reserved for selected, clinically appropriate cases, using ultra-low-dose oral solutions — high-CBD and low-THC — that do not cause impairment and can be given as drops in a smoothie or food; for some children with difficult-to-treat behavioural or sleep symptoms, a very tiny dose can be profoundly helpful. This is a private prescription medicine; it is not yet available on the NHS.

Frequently asked questions

Yes — medical cannabis has been legal in the UK since November 2018, available on private prescription from a specialist doctor. It is not yet available on the NHS.

It does not have to. The goal is symptom relief without impairment, with exact THC and CBD ratios adjusted for each person, and it is not smoked. This is very different from recreational cannabis.

No. Over-the-counter hemp CBD contains no measurable THC and is not made as a medicine, and for most people it is not effective for conditions like chronic pain or depression. Even the small amount of THC in many medical cannabis products makes a large difference without causing impairment — so a shop-bought CBD not working does not mean medical cannabis will not.

In selected, clinically appropriate cases, yes — using ultra-low-dose, high-CBD, low-THC oral solutions that do not cause impairment, always carefully titrated and monitored. It is one option within a wider plan, never used in isolation.

Yes — the London Resilience Clinic provides specialist, integrative cannabinoid medicine led by Dr Dani Gordon, the UK’s most experienced cannabinoid medicine physician, always as part of a wider personalised plan.

Cannabinoid medicine, delivered by specialist doctors

• The UK’s most experienced cannabinoid physician. Led by Dr Dani Gordon, who trained the first UK specialist prescribers and authored The CBD Bible.
• Highly personalised prescribing. Cultivar, ratio, formulation and delivery chosen for you, with a symptom-guided “low and slow” titration.
• Always part of an integrative plan. Never used in isolation, but stacked with functional medicine, nutrition and nervous system work.
• Safe and well tolerated. Prescribed after full specialist assessment, with fewer side effects than many standard medicines for the same indications.