Add Yahoo as a preferred source to see more of our stories on Google. The term "truth serum" refers to a number of mind-altering drugs. These drugs make you incapable of lying, or so the theory goes.

The famed chemical sodium pentothal, which is commonly known as truth serum, has been a mainstay of spy flicks for decades. In real life, scientists have tested it on spies, psychiatric patients, ...

The first thing to note about “truth serum” — the sort of substance that Colorado prosecutors have permission to use on Aurora shooter James Holmes should he plead insane — is that it has little to do ...

A GP who gave sleeping pills to a potentially suicidal patient so she could kill herself has been found guilty of misconduct. Dr Iain Kerr, 61, prescribed 30 sodium amytal pills to the former ...