Eight other medical conditions—phantom limb pain, arthritis, autism, depression, diabetes, Ehlers Danlos Syndrome, insomnia, and schizophrenia—were reviewed this year, but rejected, reports CityPages.

While there’s some evidence that cannabis could delay diabetes in mice, and that THC may actually aggravate psychotic disorders like schizophrenia, there simply aren’t any studies on how marijuana can affect phantom limb pain, and only one published case study for the therapeutic benefits of cannabis for autism.