The handling of drug interactions in the pharmacy has an important significance. A well-functioning interaction management system increases the safety of drug therapy for patients, promotes interdisciplinary exchange between physician and pharmacist, and boosts the skills of the local pharmacy. The author, an experienced practitioner, has developed standard templates for successfully communicating the most commonly occurring, clinically relevant interactions: - Decision aids in the form of flowcharts: When and how should the communication with the physician take place? - Aids to communication as sample forms that can be tailored to the individual pharmacy: What information does the physician need, what solutions does the pharmacy suggest? The forms cover both general interactions and specific interaction pairs and mechanisms: The appropriate solution for every interaction!