Up-to-date, evidence-based consensus protocols are an increasingly incorporated tool in health care. These protocols, clinical pathways, etc., represent a major support of health-care quality, namely scientific-technical quality. Compliance with these protocols by all team members guarantees that all patients be provided with an adequate level of health-care quality in the light of current knowledge and using available means. This principle of uniformity and quality in health care is essential for all, no matter the level of health care delivered or the activity being developed. In the Pharmacy Department and, more specifically, in the Unit of Cytostatic Agent Reconstitution and Dosing, knowledge and consensus on stability conditions and timing for diluted mixtures are essential to reach area-related quality standards. From literature references that are most relevant to or most widely used by in-hospital pharmacy departments, we designed a documented stabilities protocol to be used as a tool to: Augment preparation quality by including a documented expiry date within labels, optimize management on the basis of scientific criteria for mixtures not administered to patients and returned to the Pharmacy Department and design alternatives to hospitalization and outpatient delivery programs to improve end-user satisfaction and, therefore, health-care quality.