Cannabis users with MS have impaired cognition.
Although some patients with neurologic disorders, such as multiple sclerosis (MS), wish to use marijuana for symptomatic relief, clinicians are concerned about possible neuropsychiatric effects. To learn more, investigators studied cannabis use in 140 consecutive patients from an outpatient MS clinic (mean age, 44; 59% with relapsing-remitting MS; 74% women).
Ten patients reported using cannabis within the past month (ranging from more than daily to just once). These current cannabis users were younger than nonusers, but had similar disease type and duration. Users were matched to 40 nonusers by sex, age, disability level, and illness duration. These 50 participants underwent comprehensive psychiatric and cognitive assessments.
After adjustme…
Reviewing Author
DisclosuresRoyaltiesTextbook of Traumatic Brain Injury, 2nd and 3rd editions
Editorial BoardsUpToDate; Journal of Neuropsychiatry and Clinical Neuroscience
Leadership Positions in Professional SocietiesNorth American Brain Injury Association (Board Member); National Institute on Disability, Independent Living, and Rehabilitation Research (Chair of Data Monitoring Safety Board for study of donepezil on cognition after traumatic brain injury)
DisclosuresRoyaltiesTextbook of Traumatic Brain Injury, 2nd and 3rd editions
Editorial BoardsUpToDate; Journal of Neuropsychiatry and Clinical Neuroscience
Leadership Positions in Professional SocietiesNorth American Brain Injury Association (Board Member); National Institute on Disability, Independent Living, and Rehabilitation Research (Chair of Data Monitoring Safety Board for study of donepezil on cognition after traumatic brain injury)