This grows naturally already as a mushroom.  People can grow their own, or buy mushrooms through local farmer markets.  What is the need to turn this into a complicated biochemistry and commercialization affair that will be regulated, require prescriptions, and then force users to pay higher prices and enrich the big pharma industry?   The question is rhetorical.  Humans have used these mushrooms for millennia without the need for medicalization and commercialization.