So the drug is useful for inducing the symptoms, however once the drug is gone so are the symptoms. Schizophrenics have problems at some cellular level, be it receptor, transcription, translation, protein modification, etc that leads to their symptoms and the end effects that are similar to LSD. LSD causes the final step in the pathway, not the initial ones.
Likewise for your drugs, you named two dopamine blockers (one selective for D_2 and one not). these treat schizophrenia in the sense that they minimise symptoms since they are working at the final step in what is wrong with the patients. They are not "cures" because they don't address the initial issue, which we hopefully will discover.
That is such a bullshit statement. A wide array of pharmaceuticals reduce the effects of LSD as well as other drugs for that matter.
Dont mean to be rude, but I'm calling out your schizophrenia association as wild-eyed bullshit, too.
Haloperidol and olanzapine, two common prescriptions for schizophrenia, have been demonstrated to reduce the effects of LSD.
There is a connection between the psychoactive properties of LSD and the neurological etiology of schizophrenia, though the connection needs to be studied further.
Yes, research should not be taken as gospel, but it is foolish to think that there is no reason at all for alarm.
Another more recent source: Marona-Lewicka, D., Nichols, C. D., & Nichols, D. E. (2011). An animal model of schizophrenia based on chronic {LSD} administration: Old idea, new results. Neuropharmacology, 61(3), 503 – 512. doi:10.1016/j.neuropharm.2011.02.006