Proposed by the EPA section on Addictive Behaviours -Patients with psychiatric disorders and co-occurring addictive disorders often pose a clinical challenge, both in the diagnostic process, as well as during treatment. Co-occurring substance use may interfere with clinical assessment and often requires adjustment of pharmacological and psychological treatment approaches. However, comorbidity between psychiatric disorders and addictive disorders is rather common with about 30% of cases also having a substance use disorder, depending on the type of psychiatric condition and treatment setting. As a result, every clinician working in psychiatry will encounter clinical dilemma’s as described above. In this symposium, experts in the field co-occurring addictive disorders in psychosis, bipolar disorder, suicidal behavior and ADHD will share clinical dilemma’s and scientific answers to these dilemma’s. With this symposium, the speakers intend to provide tools and advice to come to more personalized and integrated treatment for your patients. Speakers will share data, recent literature and their view on diagnosis and treatment in patients with psychosis, bipolar disorder, suicidal behavior and ADHD. All speakers are connected to the Network of Early Career Professionals working in the area of Addiction Medicine (NECPAM: http://necpam.co/).