Can you get medical cannabis for neuropathic pain in the UK?

Neuropathic pain — pain caused by damage to the nerves themselves, rather than to tissue — is one of the more commonly assessed reasons for a private prescription in the UK. It is also the pain condition with the most randomised trial evidence behind it, though “most” here still means modest.

Is neuropathic pain treated with medical cannabis in the UK?

It is assessed privately, and it is one of the more frequent reasons UK specialists consider a cannabis-based medicine. It is not treated this way on the NHS, where nerve pain is managed with the medicines recommended in NICE guideline CG173.

Neuropathic pain covers sciatica and other radicular pain, diabetic peripheral neuropathy, post-herpetic neuralgia after shingles, trigeminal neuralgia, nerve pain after surgery or injury, and the nerve pain that comes with conditions such as multiple sclerosis. It typically responds poorly to ordinary painkillers, which is why the standard first-line medicines are amitriptyline, duloxetine, gabapentin or pregabalin — and why people who cannot tolerate those are the ones who tend to end up asking about cannabis.

Being unable to tolerate first-line treatment is a legitimate clinical reason to consider something else. It is not, on its own, a guarantee that anything else will work.

What the evidence actually shows

Neuropathic pain has been studied more than most conditions on this page, and the honest summary of that literature is: a real but small average effect, achieved at the cost of side effects that many people find unacceptable.

A Cochrane systematic review of cannabis-based medicines for chronic neuropathic pain in adults pooled the randomised evidence and found these medicines more effective than placebo for pain, sleep problems and psychological distress — while rating the quality of that evidence from very low to moderate, and noting that somnolence, sedation, confusion and psychosis limit their clinical usefulness. Roughly speaking, a modest number of people get a worthwhile benefit, a similar number stop because of how it makes them feel, and the averages hide both.

That is a more supportive evidence base than most conditions in this knowledge base can claim. It is still not strong enough for NICE to recommend routine use, and your specialist should say so.

What a specialist will want to see

There is no UK list of qualifying conditions, so nothing here entitles you to a prescription. A specialist works through your history and decides whether a monitored trial is justified for you. For neuropathic pain they will typically look at:

• Whether your pain has been characterised as neuropathic, and what caused the nerve damage
• Which of amitriptyline, duloxetine, gabapentin and pregabalin you have tried, at what doses, and what happened
• Whether side effects rather than lack of effect were the reason you stopped
• Any underlying condition driving the pain — diabetes, MS, shingles, surgery, injury — and how it is being managed
• Your sleep, mood and daily function, not only your pain score
• Your personal and family history of psychosis, and your current mental health

The general requirements — age, a documented diagnosis, the convention that two standard treatments have been tried, and access to your medical records — are covered in What are the requirements?

Risks and reasons a specialist may say no

The Cochrane review's own conclusion is worth repeating: the potential benefits may be outweighed by the harms. Drowsiness, dizziness, confusion and impaired concentration are common, and are the usual reason people stop.

THC-containing products impair driving, and driving while impaired is an offence regardless of a prescription. A specialist will weigh a personal or family history of psychosis heavily, and will normally decline in pregnancy, breastfeeding, unstable serious mental illness or significant cardiovascular disease. If you also take sedating medicines, the combined effect matters more than either alone.

How medical cannabis is thought to help

The body has an endocannabinoid system — a network of signalling molecules and receptors woven through the nervous system that helps regulate how pain is registered and passed on, along with sleep and mood. Cannabis-based medicines contain compounds that interact with this system, and in neuropathic pain the working idea is that they may temper the faulty, exaggerated signalling that damaged nerves produce.

That is a mechanism, not a guarantee. The two main compounds are thought to behave differently — one is intoxicating and more associated with pain and sleep effects, the other is not intoxicating and is often discussed for calming and anti-inflammatory properties — and a specialist balances them against your symptoms and how well you tolerate side effects. The biology is set out plainly in the endocannabinoid system explained and THC and CBD explained.

What treatment involves in practice

Where a specialist decides a trial is justified, treatment starts at a low dose and is increased slowly under supervision. In nerve pain this cautious titration matters especially, because sedation and difficulty concentrating are the side effects most likely to force people to stop — so the goal of the first weeks is the smallest dose that helps without leaving you too impaired.

The usual formats are oils or capsules taken by mouth, which act more slowly and last longer, and dried flower for vaporising, which acts faster but fades sooner; neither is smoked. How each is used is covered in how cannabis-based medicines are taken, and the way a starting point is set and changed is explained in how a dose is decided and adjusted. Because several nerve-pain medicines are themselves sedating, your specialist will factor in what you already take.

Follow-up reviews check whether pain, sleep and daily function have improved and weigh that against side effects, adjusting the plan or stopping treatment if the balance is wrong. Day-to-day questions about driving and work and drug testing matter here too, particularly while your dose is being adjusted, and each is covered in its own guide.

Questions worth asking your specialist

Neuropathic pain has more evidence behind it than most conditions, but the average benefit is small and side effects do the limiting. A few direct questions help keep the plan realistic and specific to you.

• Given the cause of my nerve pain, what improvement is realistic to aim for?
• How will we tell early on whether the side effects are worth it?
• Which format do you suggest starting with, and why for me?
• How will this interact with the nerve-pain medicines I already take?
• At what review point would we decide to continue, adjust or stop?
• How will my GP be kept informed, and does shared care apply?

If you want to take this further

The useful next step is a proper assessment, not a better list. Gather your diagnosis, the treatments you have already tried and what happened with each, and your current medicines — that is what a specialist needs in order to give you a straight answer.

The consultation itself, and what happens after it, is set out in What is the process to get a medical cannabis prescription? If neuropathic pain is not the only thing you are being treated for, say so early: other conditions and other medicines change the assessment.

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