In institutions for mentally disabled persons, dental care of the patient is often difficult because of uncooperative behavior. Premedication is sometimes necessary. The mentally disabled patient frequently receives other medication for behavioral control, cerebral palsy, seizures, or the like, that may interact with the dental premedication. Because of the problems that may develop, a program between an institution's dental department and a university's clinical pharmacy department was developed that provided an approach to the selection of premedication for the dental patient who is mentally disabled.