How does a truth serum work?

[peterparker]

Always wondered how a truth serum works.

[mollykins]

I didn't think they were real.

[Androcles]

Try this.....http://en.wikipedia.org/wiki/Truth_d
rug

[Androcles]

Try again...... http://en.wikipedia.org/wiki/Truth_drug

[theprof]

It doesn't. Over the years much has been made about the effectiveness of various drug combinations in order to secure the "truth" out of people. The reality is that the effectiveness of the drugs commonly used varies considerably from person to person. Some people simply fail altogether from responding with any useful information. As a result, so called "truth serums" are regarded as virtually useless by the intelligence agencies.

Much is made of the effectiveness of the older barbiturates such as sodium amytal, but the reality is that parenteral use of these drugs only leads to drowsiness and sleep.