For one thing,street psychedelics can sometimes be laced with other drugs,like PCP or...

[narrator] For one thing,
street psychedelics can sometimes be laced with other drugs,
like PCP or meth. And even if your drugs are pure,
these are still drugs, powerful ones. Users can get disoriented
and hurt themselves or others. There's also anecdotal evidence that if you're predisposed
to mental illness, psychedelics might push you
over the edge. The worst that can happen is people can be
subsequently schizophrenic or have enduring psychotic illnesses