Medius (; 4th-3rd century BC) a Greek physician who was a pupil of Chrysippus of Cnidos, and who lived therefore probably in the 4th and 3rd centuries BC.

Galen Aelius Galenus or Claudius Galenus (; September 129 – AD), often Anglicization, anglicized as Galen () or Galen of Pergamon, was a Ancient Rome, Roman and Greeks, Greek physician, surgeon, and Philosophy, philosopher. Considered to be one o ...

says he was held in good repute among the Greeks, and quotes him apparently as a respectable authority on an anatomical question.Galen, ''Comment, in Hippocr. De Nat. Hom.'' ii. 6, vol. xv. p. 136 Like the other pupils of Chrysippus, he entirely abstained from

bloodletting Bloodletting (or blood-letting) was the deliberate withdrawal of blood from a patient to prevent or cure illness and disease. Bloodletting, whether by a physician or by leeches, was based on an ancient system of medicine in which blood and othe ...

. He was, perhaps, the brother of Cretoxena, the mother of

Erasistratus Erasistratus (; ; c. 304 – c. 250 BC) was a Greek anatomist and royal physician under Seleucus I Nicator of Syria. Along with fellow physician Herophilus, he founded a school of anatomy in Alexandria, where they carried out anatomical research ...

Suda The ''Suda'' or ''Souda'' (; ; ) is a large 10th-century Byzantine Empire, Byzantine encyclopedia of the History of the Mediterranean region, ancient Mediterranean world, formerly attributed to an author called Soudas () or Souidas (). It is an ...

, ''Erasistratos'' but could not have been much older.

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{{DEFAULTSORT:Medius 3rd-century BC Greek physicians 4th-century BC Greek physicians