Clinical Edge

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Cannabis-Using MS Patients Improve Cognition With 28 Days of Abstinence

Key clinical point: Multiple sclerosis (MS) patients who are heavy users of cannabis gain significantly improved cognitive function with a month of abstinence – but do they care?

Major finding: Twenty-eight days of abstinence from cannabis by MS patients who were heavy users resulted in significant improvements in cognition.

Study details: This was a randomized trial involving 40 MS patients who were long-term frequent users of cannabis for symptom relief.

Disclosures: Cecilia Meza, who presented the results, reported having no financial conflicts regarding the study, funded by the Multiple Sclerosis Society of Canada.


Meza C. ECTRIMS 2019, Abstract P542.