Apollonios wrote several books on medicine but his most important (and the one that survived) is
Peri Arthron (
On Joints, ) which is a study of the teachings of
Hippocrates on the subject. This book was written in
Cyprus. A copy of this work was found in the library of the
Byzantine doctor Nikitas, and it is now kept in
Florence. The book was written under the patronage of the king Ptolemaius (
Ptolemy of Cyprus) c. 81-58 BC. The treatise is a gift presentation to the king and belongs to the genre of court science treatises of the Hellenistic age. It is divided into three sections written at different times. The first part discusses the dislocations of the shoulder; the second discusses those of the elbow, wrist, jaw and spine, whereas the third and final part discusses the dislocations of the lower limbs. The book includes 30 hand-painted pictures, believed to be copies made from the original book written by Hippocrates himself. It is believed that he wrote a book on epilepsy (
On Epileptics). This has not survived.
Herodian mentions that Apollonios wrote (or co-authored) a total of 21 books. Some of these were studies on the adverse effects of alcohol, elaborating on the type of voice produced during drunkenness. One of the books was on general therapy (
curationes). ==Modern legacy==