I’m really worried about the subset of the population with preexisting mental disorders such as manic depressive disorder, schizophrenia, and depression who will suffer a psychotic break from the use of these substances. Maybe I’m wrong, but from what I’ve heard and read it seems like there’s no way to know what will happen until you try it. A certain percentage of the population goes to hell in the most literal sens…
I honestly don't think we have the capacity to test existing psychiatric medication to the extent that we can provably demonstrate that over the long term, psychiatric medication + negligence (or simply, variance - controlled lab conditions versus real world) in mental health care is not a direct cause (more nicely, a contributory factor) of psychotic breaks for patients.
So yes, it's a risk, but it's not one that doesn't currently exist with what we do now.