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

Arthritis pain — from osteoarthritis, rheumatoid arthritis and other inflammatory joint disease — is among the conditions UK private specialists assess. The critical distinction is between treating pain and treating the disease: a cannabis-based medicine does not replace the drugs that protect your joints.

Is arthritis pain treated with medical cannabis in the UK?

Arthritis-related pain is assessed by private specialists, typically where pain persists despite proper treatment of the underlying arthritis and where the standard analgesic options have been exhausted or are unsuitable. It is not an NHS treatment for arthritis and is not licensed for it.

Two things need separating. Rheumatoid arthritis and other inflammatory arthritis are driven by an immune process that damages joints over time, and are treated with disease-modifying drugs and biologics that change the course of the disease. Osteoarthritis is a wear-related condition managed with exercise, weight management, physiotherapy, analgesia and sometimes surgery. In both, a cannabis-based medicine is only ever a candidate for symptom relief.

If you have inflammatory arthritis, a specialist will expect you to remain under rheumatology care and to continue your disease-modifying treatment. Stopping it to try something else risks irreversible joint damage.

What the evidence actually shows

The controlled evidence for arthritis is one small early trial, now two decades old, plus indirect evidence from broader chronic pain research. It is a thin base on which to build expectations.

A randomised, double-blind, parallel-group study in Rheumatology gave a THC:CBD oromucosal spray or placebo to 58 patients with rheumatoid arthritis over five weeks. It reported statistically significant improvements in pain on movement, pain at rest, morning stiffness and sleep quality compared with placebo. It was a preliminary study, small, short, and never followed by the large confirmatory trials that would normally be required before a treatment enters routine practice.

For osteoarthritis specifically, controlled evidence is weaker still. Where UK patients with arthritis-related pain are prescribed privately, the rationale is usually drawn from the chronic pain literature rather than from arthritis-specific trials.

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 arthritis-related pain they will typically look at:

• Which type of arthritis you have, and whether it is confirmed by a rheumatologist
• Whether inflammatory arthritis is adequately controlled on disease-modifying treatment
• What analgesia you have tried — including whether NSAIDs are unsuitable for you and why
• Whether joint replacement or other surgical options have been considered
• How much of your problem is pain, stiffness, sleep disruption or reduced function
• Your other medicines, other conditions, and your personal and family history of psychosis

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 clearest risk in arthritis is not a side effect: it is the temptation to substitute a symptom treatment for disease control. Inflammatory arthritis that is left untreated damages joints permanently, and no cannabis-based medicine has been shown to prevent that.

Beyond that, the usual profile applies: drowsiness, dizziness, dry mouth, impaired concentration and driving impairment from THC-containing products. Many people with arthritis are older and take several medicines, which raises the risk of interactions and of falls; a specialist should take that seriously rather than treating age as incidental. Personal or family history of psychosis, unstable mental illness, significant cardiovascular disease, pregnancy and breastfeeding all count against treatment.

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 arthritis-related 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: 31 August 2026