Amobarbital is a barbituate that acts as a sedative and hypnotic. It is used to treat anxiety, insomnia and epilepsy. However, it can become habit forming with long term use and such dependence can be life threatening. Although once thought to act as a "truth serum" during talk therapy, subsequent research has shown that under coercion, a subject can form false memories of events. It was also used during World War II to treat post-traumatic stress disorder, but such use was discontinued when the side effects of the drugs made soldiers useless for front-line duties.