Glossary term
Effectiveness: Effectiveness refers to how well a treatment works in everyday clinical practice, outside the tighter conditions of a trial.
Why this term matters
Helps patients understand why real-world experience and trial evidence are not identical.
UK medical cannabis context
Useful in evidence explainers and registry discussions.
What not to assume
Effectiveness data can be more reflective of routine care, but usually less controlled than trial data.
Careful wording: Avoid using effectiveness data as proof of causation on its own.
Related glossary terms
Related MCPH pages
Sources and review notes
This entry is educational vocabulary, not medical advice. Suitability, prescribing, product choice and monitoring belong with a qualified clinician or pharmacist.
- NICE NG144: cannabis-based medicinal products
- Technical chemistry / terminology review note. Used as terminology context only, not as standalone clinical guidance.