The purpose of Hematopoietic Stem Cell Transplantation (HSCT) E-learning Tool is to provide basic knowledge to hospital and community pharmacists involved in the pharmaceutical care for HSCT patients. Different topics will be discussed including: hematopoiesis, different types and sources of HSCT, process of HSCT, early and late complications, drugs used during conditioning regimens, drugs used in prevention and treatment of complications. The tool takes approximately 30 minutes to 1 hour to complete, depending on the knowledge and experience of the user.