An academic-based drug information center uses a systematic approach to effectively answer questions from healthcare professionals. The approach involves 7 steps: 1) securing requestor demographics, 2) obtaining background information, 3) determining the ultimate question, 4) developing a search strategy, 5) evaluating and analyzing information, 6) formulating a response, and 7) following up and documenting. Key factors considered in responses include patient characteristics, disease factors, and medication properties. The center's role is to provide evidence-based answers to optimize patient care and promote rational drug use.