Abstract

This article offers the first edition and translation of two heretofore unpublished pharmacological treatises by Abū Bakr al-Rāzī, namely Fī ittikhādh māʾ al-jubn and Fī manāfiʿ māʾ al-jubn, which seem to have formed part of a lost volume on dairy products. As it demonstrates, al-Rāzī’s examination of whey is connected to his philosophical interest in the complex nature of simple substances such as milk. The article also highlights how these two treatises built on the Greek pharmacological tradition by incorporating ingredients from Persia and India.