The authors describe a computerized patient information system at a psychiatric hospital in Israel. The system is a fully implemented work instrument that promotes clinical safety and cost containment. It allows interactive online consultations, clinical cross-checking, the production of computerized reports and schedules, fast response to laboratory results, and safer drug administration, all of which help improve the quality of care. Cost savings have been achieved in areas such as pharmacy and food distribution. The initial investment in the system was $400,000, which is expected to be recouped after 11.4 years.