Callisthenes
3. A freedman of Lucullus, who, according to Cornelius Nepos (apud Plut. Lucull. 43), administered to his master a certain drug (intended as a charm to increase his affliction for him), which caused the failure of intellect that he laboured under in his latter years.
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.