Non-interventional Study of Risperidone ISM® in Schizophrenia Patients Hospitalised Due to a Relapse

Inclusion Criteria:

1. Patient aged 18 years or older at the time of hospitalisation.
2. Patient with diagnosis of schizophrenia, as per clinical judgment.
3. Patient admitted to a psychiatric inpatient unit due to an acute exacerbation.
4. Patient has started treatment with Risperidone ISM within the previous 48 hours, according to the current Summary of Product Characteristics (SmPC).
5. Patient or their legal representative provides written informed consent to participate in the study.

Exclusion Criteria:

1. Patient with a diagnosis of schizoaffective disorder, bipolar disorder mental retardation, or other cognitive and neurodevelopmental disorders.
2. Patient with substance-induced psychosis or psychosis during intoxication (patients with comorbid substance abuse/dependence are allowed).
3. Patient unable to answer the study questionnaires.
4. Patient who is currently participating in another clinical study.
5. Patient pregnant or breast-feeding.
6. Patient with a serious and unstable medical condition, forensic patients, or patients with any contraindication mentioned in the SmPC of Risperidone ISM.
7. Patients currently on antipsychotic treatment with clozapine or any long-acting injectable antipsychotic.