NASHVILLE, Tenn. (AP) -- The Tennessee Department of Correction is revising its protocol for executions.
The department said in a news release on Friday that it's switching from using a three-drug method to execute death row inmates to a single-drug method.
The new protocol now calls for using the sedative pentobarbital only to put an inmate to death.
Arizona, Idaho and Ohio already have carried out executions using pentobarbital, a barbiturate that is most commonly used to euthanize animals and treat seizures.
The last major revision to the state's execution protocols came in 2007, when then-Gov. Phil Bredesen issued an executive order to review the policies and procedures and ordered a moratorium on executions.
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