Objective. To implement and evaluate the effectiveness and short-term impact of an interprofessional education (IPE) session in the first year for health sciences students representing 9 health professions.Design. An interprofessional faculty committee created a 2½ hour introductory interprofessional education session focusing on a single patient case and 2 possible discharge scenarios. A mixed method pretest/posttest research design was used to examine changes in students' perceptions of and attitudes toward IPE. Six follow-up focus groups also were held with students from the participating professions. Assessment. Of 1197 health professions students enrolled, 914 students (76%) attended the IPE session. Two hundred thirty-two of 240 pharmacy students (97%) attended. Forty-three (18.5%) pharmacy students responded to the open-ended questions on the survey instrument. The most frequently reported gains from attending the session were recognition of teamwork importance to benefit the patient (30%) and understanding of other professionals' roles (29%). Shortfalls reported by students related to the content/style of presentation (26%) and technical/organizational (23%) aspects of the session. Pharmacy students who participated in one of the focus groups stated the session demonstrated the benefits as well as facilitators and barriers to collaborative care. Conclusion. The session served as an effective introduction to IPE; debriefing and integration with uniprofessional curricula should occur. Students need additional small group interaction with other health professional students, and can contribute as members of the planning committee.