Introduction: One of the most important goals of library and information sciences is the user-oriented organization of information. Thus, the International Federation of Library Associations (IFLA) presents the functional requirements for bibliographic records (FRBR) model. This study examined the bibliographic relationships between Persian medical books based on the FRBR model, during 2006 to 2011 and reviewed the compliance rate of this model with the Persian medical books.Methods: This was a descriptive survey. The study population consisted of all the medical bibliographic records in the National Library of Iran's online public access catalog (OPAC) during 2006 to 2010. The data were collected using National Library of Iran OPAC. Method of data collecting was direct observation of bibliographic records in National Library of Iran OPAC. After collecting data and creating tables and figures in Microsoft Excel Software, the data were analyzed to fulfill the research objectives and also to draw conclusions.Results: The results showed that out of total 105, 926 books published in Persian, 3, 781 books, i.e. equivalent to 3.56% were in the field of medical sciences. In total number of medical Persian books, only 390 books, i.e. equivalent to 10.31%, had the work-to-work bibliographic relationships. The most common types of bibliographic relationships in Persian medical books in the studied years consequently were "summarization", "adaptation" and "supplement".Conclusion: Although the FRBR model is much emphasized, because of substantial differences of medical sciences with other sciences, especially the humanities (e.g. literature and arts), its experimental nature is very low based on scientific methodology [experiment, observation, hypothesis and conclusion by (proof theory)], the rate of "work-to-work bibliographic relationships", as the basic concept of FRBR.At present, according to this survey, implementation of FRBR in cataloging and organizing books in the field of medical sciences would not be cost effective.