Themison was a native of Laodicea in Syria,[1] and a pupil of Asclepiades of Bithynia.
[3] Nothing more is known about the events of his life except that he seems to have travelled a great deal; as he mentions Crete and Milan, apparently as an eye-witness.
He differed from his teacher on several points in his old age, and became the founder of a new sect called the Methodic school (Methodici), which long exercised an extensive influence on medical science.
[8] Eudemus and Proculus are said to have been followers (Latin: sectatores) of Themison, which may only mean that they belonged to the Methodic school.
[9] Themison was criticized by Soranus[10] for his cruel handling of mental patients.