Cough mixture misuse has become a focus of concern in Hong Kong since
the late 1980s. Psychiatric admissions related to cough mixture misuse
have been reported with increasing frequency during the past 5 years.
A retrospective chart review of psychiatric admissions related to cou
gh mixture misuse for a 54-month period was conducted in two psychiatr
ic units in Hong Kong. Twenty-seven subjects were identified. The main
psychiatric presentations included acute organic brain syndrome, schi
zophreniform psychosis and affective episode. They appeared to be asso
ciated with the pharmacological activities of opiates, antihistamines
and sympathomimetics, the main ingredients of most cough mixtures.