Definition of "pentobarbital" []

• Short-acting barbiturate that is available as both a free acid and a sodium salt. (noun)

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• "Oklahoma last year became the first state to switch to another method, replacing sodium thiopental with pentobarbital, which is widely used to euthanize animals."
• "The doctors who signed the open letter, led by David Nicholl, a neurologist at City Hospital in Birmingham, want to see Hospira following the example of Lundbeck, the Danish manufacturer of a barbiturate called pentobarbital that has been also used in US executions."
• "Lawyers for death row inmate Gregory Walker argued that recording DeYoung's execution would provide critical evidence in his appeal about the effects of pentobarbital, which is the sedative now being used as the first step in Georgia's injection procedure."