Thrasyas
Θρασύας
(Θρασύας), an eminent herbalist, a native of Mantineia in Arcadia, the tutor of Alexias, who is said to have been able to drink hellebore with impunity. He lived shortly before the time of Theophrastus, and therefore probably about the middle of the fourth century B. C. (Theophrast. Hist. Plant. 9.16.8; 17. §§ 1, 2.)
It is uncertain whether he is the same person who was the author of some medical formulae mentioned by Scribonius Largus (De Cormpos. Medicam. 100.208 (78)), and Aetius(2.4. 57, 3.50.65, pp. 415, 426).
From William Smith (ed.), Dictionary of Greek and Roman Biography and Mythology. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.