His research activity has focused on heart failure, haemoglobinopathies, cardiovascular pharmacology and cardio-oncology. In total, Dr. Farmakis has published more than 220 articles, including 197 papers in international journals indexed in PubMed with a total impact factor of 1384, a total number of citations of 6655 (Google Scholar) and 5196 (Scopus) and an h index of 47 (Google Scholar) and 38 (Scopus). He has participated with abstracts in 218 international and national congresses. He has received grants for research protocols and programs and served as a primary investigator or steering committee member in research projects funded by the European Commission. He also sits on editorial boards of three international medical journals and on several scientific or advisory committees, while he serves as a reviewer for many highly-rated journals. He further served as a member of the European Society of Cardiology (ESC) guideline committee for Cardio-Oncology in 2016 and he is leading the 2019 edition of the Thalassaemia International Federation Guidelines for the management of transfusion-dependent thalassaemia.