I.a counterpoison.
I. Lit.: “antidota raro, sed interdum necessaria sunt,” Cels. 5, 23; Phaedr. 1, 14, 3: “se antidotum daturum,” Quint. 7, 2, 25; so Suet. Calig. 23; id. Ner. 34 al.: “antidotus,” Gell. 17, 16; Dig. 18, 1, 35.—Sometimes, in gen., an antidote, remedy, Spart. Hadr. 23.—
II. Trop.: “antidotum adversus Caesarem,” Suet. Calig. 29.