An integral part of the Hospital Pharmacy’s operation is the preparation and dilution of injectable cytostatics and biological drugs, which require aseptic conditions for preparation. The operation of the drug dilution unit is based on strict procedures and protocols, which are strictly followed by the experienced and trained staff of the pharmacy and oncology nursing. Both the dispensing of the drugs and their dilution process are individualized, carried out under controlled conditions, in accordance with the pharmacotherapy protocols applied.