Medical Cannabis: The Evidence
A summary of peer-reviewed research and approved medicines — across pain, neurology, oncology, and palliative care.
Therapeutic areas
Chronic Pain
Cochrane systematic reviews find moderate-quality evidence for cannabinoids in chronic neuropathic pain.
View sources →Epilepsy & Seizures
FDA-approved Epidiolex (CBD) reduces seizure frequency in Dravet and Lennox-Gastaut syndromes.
View sources →MS Spasticity
Sativex (nabiximols) is approved for multiple sclerosis spasticity in 30+ countries.
View sources →Chemotherapy Nausea
WHO recognises cannabinoids for chemotherapy-induced nausea and vomiting.
View sources →PTSD
U.S. VA and 20+ studies report symptom relief in veterans with treatment-resistant PTSD.
View sources →Parkinson's Disease
Observational evidence shows reduced tremor and improved sleep quality.
View sources →Crohn's & IBD
Small RCTs report symptom improvement and steroid reduction in active Crohn's disease.
View sources →Palliative Care
Used internationally for appetite, pain, and quality of life at end of life.
View sources →How to get a medical prescription
- 1
Find a licensed physician
- 2
Confirm a qualifying condition
- 3
Apply to your national programme (if required)
- 4
Receive your prescription
- 5
Access from a licensed dispensary or pharmacy
Countries with medical access
Key scientific sources
- Cochrane Database — Cannabinoids for chronic pain2018↗
- Devinsky et al., New England Journal of Medicine2017↗
- FDA — Epidiolex Prescribing Information2018↗
- WHO Expert Committee on Drug Dependence2019↗
- Bonn-Miller et al., JAMA Psychiatry2021↗
See the full list on the sources page.