Truth serum is a drug used to obtain information during an investigation from subjects who are unwilling to answer or somehow unable to remember the facts first-hand. There are several drugs that can be used in this way, including sodium pentothal, sodium, thiopental, grain alcohol, scopolamine, and barbiturates.
The same drugs have many other applications: They are used in psychiatry to treat phobias, as a general anesthesia, and even to produce medically-induced comas.
The truth serum has often been portrayed in fiction and films as a magical solution. Even the character Barty Crouch in the Harry Potter books is subjected to a magical version and ends up confessing to a list of offenses.If you are planning on using the truth serum be careful, you might not be able to handle the truth.
