:For the radiation therapy machine involved in several accidents, see Therac-25. Theriac or theriaca was a medical concoction originally formulated by the Greeks in the first century AD and became popular throughout the ancient world as far away as China and India via the trading links of the Silk Route. It was an alexipharmic, or antidote, considered a universal panacea, for which it could serve as a synonym: Adam Lonicer wrote that garlic was the rustics' Theriac or Heal-All. The word theriac… (More on Theriac)