Mantias, a Greek physician who was the tutor of Heraclides of Tarentum

Heraclides of Tarentum

Heraclides of Tarentum, , was a Greek physician of the Empiric school who wrote commentaries on the works of Hippocrates....

, and one of the followers of Herophilus; and who lived therefore most probably in the 3rd century BC. Galen

Galen

Aelius Galenus or Claudius Galenus , better known as Galen of Pergamon , was a prominent Roman physician, surgeon and philosopher...

 says that he was no ordinary physician, and that he was the first who wrote a regular work on pharmacy

Pharmacy

Pharmacy is the health profession that links the health sciences with the chemical sciences and it is charged with ensuring the safe and effective use of pharmaceutical drugs...

. His works on the subject, which are several times quoted by Galen, are lost, but the titles of some of them have been preserved.