title: Zopiclone withdrawal: an unusual cause of delirium in the elderly.
abstract: We report a case of an elderly lady who was admitted for congestive heart failure. She developed delirium during the course of her hospital stay. Multiple investigations were performed but were unremarkable. Finally, a diagnosis of abrupt zopiclone withdrawal causing delirium was made. Zopiclone was resumed at a lower dose and delirium resolved completely.
authors.affiliation: Department of Medicine, Queen Mary Hospital, Hong Kong.
authors.forename: Chun Pong
authors.initials: CP
authors.lastname: Wong
authors.forename: Patrick Ka Chun
authors.initials: PK
authors.lastname: Chiu
authors.forename: Leung Wing
authors.initials: LW
authors.lastname: Chu
mesh_terms: D000368:Aged; D053961:Azabicyclo Compounds; D003693:Delirium / Q000139:chemically induced*; D005260:Female; D006801:Humans; D006993:Hypnotics and Sedatives / Q000009:adverse effects*; D010879:Piperazines / Q000009:adverse effects*; D013375:Substance Withdrawal Syndrome / Q000150:complications*
chemical_list: D053961:Azabicyclo Compounds; D006993:Hypnotics and Sedatives; D010879:Piperazines; C515050:zopiclone