He was head of this Department from 1993 to 2003. His specialization: internist, gastroenterologists, clinical pharmacologists. His research fields are biochemical pharmacological studies in the gastrointestinal tract, and the role of capsaicin-sensitive afferention in human gastrointestinal tract. He published more 350 papers in peer-revieved journal ,19 monographs and edited 30 books.He received André Robert award from International Union of Pharmacology ,Gastrointestinal Section (2014).From his students, fourtheen full University Professors were appointed in Cuba, Egypt and Hungary.