NCIt definition : The sodium salt form of thiopental, an ultrashort-acting barbituric acid derivative,
with anesthetic activity. Thiopental binds to the chloride ionophore site of the gamma-aminobutyric
acid (GABA)-A/chloride ionophore receptor complex, thereby enhancing the inhibitory
actions of GABA-A in the brain. This leads to synaptic inhibition, decreased neuronal
excitability and induction of anesthesia. In addition, this agent decreases glutamate
(Glu) responses.;