RESUMO
Tayadhuq, also known as Theodocus/Théodoros (d. early 8th century AD), was educated in the Gondes̲h̲apur School and served the Sassanid kings. During this period, he contacted the Umayyad court and became the physician of Hajjaj ibn Yusuf (d. 715 AD), the general governor of the Eastern regions of the caliphate. In addition to his knowledge on the Sassanid scientific tradition, Tayadhuq had a significant role in transferring this tradition to the Islamic world. His ideas were later followed by polymath physicians such as Rhazes (Abu Bakr al-Razi, d. 925 AD), Avicenna (Ibn Sina, d. 1037 AD), and others who lived after him. His medical works were of great importance to the development of early Islamic medicine. Therefore, this study will attempt to illuminate this forgotten scholar's medical knowledge, the works he produced, and finally illustrate his influences on later Muslim physicians.
