A drug used to treat acne and to prevent malaria, doxycycline, could reduce the risk adolescents developing schizophrenia. The association was seen in a study looking at more than 50,000 adolescents who attended psychiatric services in Finland. The authors have called it a "tentative but exciting possibility" – but caution more research is needed. Guest/s Professor Ian Kelleher, child and adolescent psychiatry at the University of Edinburgh References Doxycycline Use in Adolescent Psychiatric Patients and Risk of Schizophrenia: An Emulated Target Trial