A medication history interview is used to collect detailed information about all medications a patient is currently taking or has taken in the past. This provides insights into allergic reactions, adherence, and use of alternative medicines. The goals are to obtain complete information to compare to medical records, verify histories, and inform care. Key information includes current and past medications, reactions, effectiveness, adherence, and sources like patients, families, and records. Patient counseling then aims to improve understanding of treatment, side effects, and self-management through a structured introduction, discussion, and conclusion.