“…In a series of reports, Van Putten, May and coworkers have observed that a schizophrenic patient's subjective response, measured 4 or 24 h after a test dose of chlorpromazine or thiothixene, was significantly related to eventual clinical outcome following sustained treatment while in hospital (May et al 1976(May et al , 1981Van Putten & May, 1978;Van Putten et al 1980a, b, 1981. Patients experiencing a dysphoric response, those who felt 'listless ', 'uptight', or who developed acute panic after the first dose, realized significantly less symptom remission at the end of hospital treatment than those who did not have an initial dysphoric response.…”