Giovanni Di Perri, MD, PhD is Professor of Infectious Diseases at the University of Turin, Italy, where he also serves as Head of the Department of Clinical Infectious Diseases and of the Postgraduate School of Infectious Diseases. Professor Di Perri has carried out several original investigations in the fields of tuberculosis, malaria and HIV infection. Prof. Di Perri is author of over 400 publications on peer-reviewed journals and his major current research interest is on the clinical pharmacology of anti-infective agents, particularly antiretrovirals. Under his guidance, the Department of Infectious Diseases of the University of Turin has been included among the clinical centres participating in international phase I−IV trials on antiretrovirals and other anti-infective agents. Under his chairmanship this department established a new Unit of Clinical Pharmacology of Antiretrovirals in 2001, which carries out therapeutic drug monitoring of antiretroviral therapy on a regular basis, as well as clinical investigations on clinical pharmacology of antiretrovirals, now also including clinical research on pharmacogenetics. The clinico-pharmacology unit here concerned has undergone further development in order to provide accurate and timely TDM service (including clinician advice) on anti-infective agents to ICU, Transplant Units, Haematology, Gastroenterology (ribavirin and new DAAs).