Up Next
Back to Show
PBS News Hour
Patients frustrated by medical marijuana research roadblocks
Lenny and Amy’s 5-year-old son has epilepsy. When conventional medications caused terrible side effects, they started giving him a daily drop of cannabis oil, with dramatic results. But it’s a calculated risk: While there is anecdotal evidence of cannabis’ effectiveness, scientists face research roadblocks because it’s a schedule 1 controlled substance. Science correspondent Miles O’Brien reports.
