butabarbital

n. an intermediate-acting barbiturate used in the treatment of insomnia and for daytime and preoperative sedation. Like other barbiturates, it is a nonselective CNS depressant and therefore quite toxic in overdose. Because tolerance to its sedative and hypnotic effects accrues much more rapidly than tolerance to its CNS depressant effects, its therapeutic index drops and its potential lethality increases as the dose is increased. These factors, plus its potential for abuse, have caused a decline in its clinical use. U.S. trade name: Butisol Sodium.

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Psychology term of the day

October 18th 2024

Fechner’s paradox

the apparent increase in the brightness of a figure caused by closing one eye after viewing the figure with both eyes open. [Gustav Theodor Fechner]