Sorry, I figured doctor prescriptions were not included. My view is that they should be a controlled substance, the way they are now. You'd have to show amazing cognitive effects for an illness to legalize it for prescription. I don't know the science here though.

By 'absolute ban' I mean they should be controlled, and classified as an illegal drug. This is not something people should self-medicate. Those using without a prescription or worse, distributing, should be jailed.