amytal n the sodium salt of amobarbital that is used as a barbiturate; used as a sedative and a hypnotic Usage(s) Later Holly asked to be treated with sodium amytal, which she hoped would elicit the truth. Sodium Amytal to the Rescue . After giving each subject a tongue-loosening injection of sodium amytal, the second examiner tried to uncover the facts. Synonym(s) amobarbital sodium blue blue angel blue devil Amytal