Cannabis is not a treatment for autism itself, but some families talk about it...

https://iris-wiki.win/index.php/How_Do_I_Find_NICE_Technology_Appraisals_for_Cannabidiol%3F

Cannabis is not a treatment for autism itself, but some families talk about it for symptoms that can come alongside autism. NICE guidance highlights that any use, especially for under-18s, should be carefully managed by specialists