mithridate              (arch. pharm.) a formulation believed to
                        include an antidote for every poison.
theriac                 molasses; a ancient antidote to poison compounded by
                        grinding a large number of drugs in honey.
bezoar                  a concretion found in the intestine of certain
                        animals, esp. ruminants, formerly thought to
                        be an antidote for poison.
saturnine               of a gloomy, taciturn temperament; suffering
                        from lead poisoning.
mithridatism            immunity (to a poison) from taking ramped doses.