Using drugs safely.

Editorial. Comments on the Audit Commission report, 'A Spoonful of Sugar,' which indicates a fivefold increase in ten years of medication errors or adverse reactions to medicines in Great Britain. Discussion of the Audit Commission's failure to distinguish between medication errors, inevitable adverse reactions, and potentially preventable adverse reactions; Factors that contribute to medication errors; View that those who prescribe and give drugs should be better educated and tested on competency in patient safety.