<P> A 2017 study found cannabidiol reduced convulsive seizures but resulted in more side effects in people with Dravet syndrome . </P> <P> Due to the anecdotal nature of the health claims being made medical bodies have published statements of concern . </P> <P> A position statement by the American Epilepsy Society states: </P> <P> The recent anecdotal reports of positive effects of the marijuana derivative cannabidiol for some individuals with treatment - resistant epilepsy give reason for hope . However, we must remember that these are only anecdotal reports, and robust scientific evidence for the use of marijuana is lacking...at present, the epilepsy community does not know if marijuana is a safe and effective treatment, nor do they know the long - term effects that marijuana will have on learning, memory and behavior, especially in infants and young children . </P>

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