Sodium pentothals is a medication used for anesthesia and as a truth serum. Synonyms for sodium pentothals include thiopental, sodium thiopental, and sodium 5-ethyl-5-(1-methylbutyl) barbiturate. Thiopental is the generic name for sodium pentothals. Other brand names for the same medication include Pentothal, Nesdonal, and Pental. Sodium pentothals work by slowing down the brain and nervous system, thus inducing a state of unconsciousness. It is commonly used in surgical procedures and sometimes in the treatment of severe seizures. Despite its medical benefits, sodium pentothals have been controversial because of its potential use as a truth serum in interrogations.