Truth or Consequences, as the name suggests, has effects similar to the party game of the same name, with one key diffference: you can’t quit. A colourless liquid not very different from water to touch, it is often used to provoke responses that are more honest than the respondent would like.
The drug suppresses inhibitions, leading those who have taken it to speak their minds with great vehemence. As such, it is a common prank for the drug to be unknowingly administered to priests, politicians, cops and other self-appointed moral authorities. It is equally common for such pranks to end in gunfire.