Towards the safer use of dosettes.

Patient compliance has long been recognized to be a problem associated with drug treatment. Dosettes constitute a compliance aid; their aim is to maintain patient independence, while facilitating patient compliance. However, those patients most in need of such devices are the least likely to be able to manage them. It was therefore decided to examine incidents in which problems involving dosettes had been identified; 52 such incidents were found. Half the incidents involved filling errors, and most of these involved nurses; some incidents were potentially dangerous systematic errors. A second type of incident involved a problem with use, mainly caused by hurried or confused patients; these sporadic errors were less dangerous than filling errors. The remainder of the incidents involved patients taking medication in addition to the medication in the dosette. Recommendations include objectively assessing that a dosette is appropriate for the individual patient, and education about the need for compliance, meticulous care and checking when filling, and regular checks to confirm correct use.