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A hypnotic and sedative; available as barbital sodium (soluble barbital), with the same uses; often used as a buffer.
A barbiturate, C8H12N2O3, that is a white crystalline powder and was formerly used as a hypnotic and sedative especially in the form of its sodium salt.
Hypnotic and sedative agent.
a long-acting barbiturate, used as a hypnotic and sedative. Largely replaced by phenobarbital.