The first edition of the scientific biography of the Academy of Medical Sciences of the USSR I.P. Razenkov, a student of I.P. Pavlov and the successor of his research in the field of digestion, was published in the series "Scientific and Biographical Literature" in 1991. The book was highly appreciated by the scientific community. This publication includes new sections devoted to the further study of the multifaceted work of I.P. Razenkov, including a huge material regarding the role of the scientist in the "physialization of the clinic and hygiene."