This study explored the relationships between General Practitioners' (GPs) beliefs about People With Schizophrenia (PWS) and GPs' recommendations regarding restrictions for such people when in medical (nonpsychiatric) hospital, and whether these relationships were mediated by dangerousness perception. Three-hundred twenty-two randomly selected ….. GPs completed a questionnaire measuring beliefs about PWS. Structural EquationModel (SEM) was used to explore the effects of these beliefs on the GPs' views about the need for restrictive rules in hospital. Thirty-one percent of GPs firmly believed that, in medical wards, PWS should be supervised and 18% that they should be separated from other patients. SEM revealed that belief in such differential treatment was positively related to a belief that PWS need medication for the rest of their lives, and to perceptions of others' need for social distance, and of dangerousness. Dangerousness was, in turn, positively related to the belief that PWS need medication for their lives, and to a perception of the need for social distance, but negatively related to perceived capacity to report health problems. Analyses of indirect effects showed that the relationships of belief in discriminatory treatment with belief in medication for life and with perceived social distance were mediated by perceived dangerousness. GPs' attitudes about PWS appear closely with their beliefs on discriminatory behaviours in hospital, and the mediating role of dangerousness perceptions. Providing GPs with education about schizophrenia treatments and prognosis, and countering stereotypes about dangerousness, could be helpful to reduce GPs beliefs in the need for discriminatory treatment of PWS.