Which medication, imported from france in the 1950s, offered modestly effective relief from the symptoms of schizophrenia for patients who had lost contact with reality?

Under the commercial name Orazine, Chlopromazine was introduced in the 1950s after a paradigm shift (extremely significant) or change from psychiatrists. Prior to this era, psychiatrists, as whole, did not readily recognize and therefore often improperly treated those with mental disorders.