Clinical pharmacokinetics represents a way to ensure that a patient is receiving an optimal dose of a given drug for a specific indication. Pharmacokinetic consultation services have been implemented in many teaching hospitals and tertiary care facilities in the past. This project evaluated the feasibility of expanding the process to several community hospitals with one coordinator. Twenty-seven hospitals, members of the Ottawa Valley Regional Drug Information Service, were approached. Fifty-two pharmacists from 21 sites agreed to participate. Four modules were taught: basic principles, theophylline, aminoglycosides, and digoxin. Regular follow-up meetings were arranged so pharmacists from different hospitals could share their administrative and patient-specific problems and solutions. After two years, 16 departments have implemented a clinical pharmacokinetic service and monitor 82% of targeted drug levels. The pharmacists trained in clinical pharmacokinetics through the project recommended changes in the regimen in 45% of all their consultations. Eight-one percent of these were accepted and implemented by physicians. These results indicate that pharmacists from small community hospitals can be trained by one individual to provide clinical pharmacokinetic services with minimal supervision. It also shows that these hospitals have a need for such services.