Is it legal to give medical cannabis for ADHD or ADD?

I can answer this with another question:Is is it legal to give harmful medication to people with adhd,
When there are healthier alternatives that encourages appetite and a meditative calm?

Is it not a crime to ban herbal substances,because of their psychoactive properties
when in fact these qualities are the ones responsible for an enhanced ability to focus and concentrate?

Is it not a crime,to keep natural drugs away from people,by having laws that
makes those who benefit from them,criminals and outsiders?

Is it not a serious crime,to actually increase the problems for adhd people
by giving them chemical drugs that steal away their natural sleep and apetite?