Ragna Kristín Guðbrandsdóttir¹

Engilbert Sigurðsson^1,2

Oddur Ingimarsson^1,2

 

¹Faculty of Medicine, University of Iceland, ²Landspitali University Hospital, Mental Health Services.

Correspondence: Oddur Ingimarsson, odduri@landspitali.is

 

Key words: ADHD, methylphenidate, psychosis.

In view of the ongoing rise of ADHD prescriptions among adults in Iceland, it is important that doctors are aware that psychosis is a rare but at times a serious adverse reaction to such treatment. In 2022 5% of adults were prescribed medication to treat ADHD in Iceland. In this case report we present a case of methylphenidate-induced psychosis in a young man with no previous history of psychotic episodes who required admission to the psychiatric intensive care unit.