US

Oklahoma plans first lethal injection since botched execution, will use same method as Florida

  • FILE - In this Thursday, Oct. 9, 2014 photo, the gurney in the the execution chamber at the Oklahoma State Penitentiary is pictured in McAlester, Okla. Oklahoma plans to resume executions Thursday, Jan. 15, 2015, after botching its last one and will use the same three-drug method as a Florida lethal injection scheduled for the same day. (AP Photo/Sue Ogrocki, File)

    FILE - In this Thursday, Oct. 9, 2014 photo, the gurney in the the execution chamber at the Oklahoma State Penitentiary is pictured in McAlester, Okla. Oklahoma plans to resume executions Thursday, Jan. 15, 2015, after botching its last one and will use the same three-drug method as a Florida lethal injection scheduled for the same day. (AP Photo/Sue Ogrocki, File)  (The Associated Press)

  • FILE - This July 25, 2014 file photo shows bottles of the sedative midazolam at a hospital pharmacy in Oklahoma City. Oklahoma plans to resume executions Thursday, Jan. 15, 2015, after botching its last one and will use the same three-drug method as a Florida lethal injection scheduled for the same day. The drug mixture begins with the sedative midazolam and includes the same drugs used in Oklahoma’s botched execution of Clayton Lockett, who writhed on the gurney and moaned after he’d been declared unconscious. (AP Photo/File)

    FILE - This July 25, 2014 file photo shows bottles of the sedative midazolam at a hospital pharmacy in Oklahoma City. Oklahoma plans to resume executions Thursday, Jan. 15, 2015, after botching its last one and will use the same three-drug method as a Florida lethal injection scheduled for the same day. The drug mixture begins with the sedative midazolam and includes the same drugs used in Oklahoma’s botched execution of Clayton Lockett, who writhed on the gurney and moaned after he’d been declared unconscious. (AP Photo/File)  (The Associated Press)

  • FILE - This June 29, 2011 photo provided by the Oklahoma Department of Corrections shows Charles Warner. Warner is scheduled to be executed Thursday, Jan. 15, 2015 for the 1997 killing of his roommate's 11-month-old daughter. (AP Photo/Oklahoma Department of Corrections, File)

    FILE - This June 29, 2011 photo provided by the Oklahoma Department of Corrections shows Charles Warner. Warner is scheduled to be executed Thursday, Jan. 15, 2015 for the 1997 killing of his roommate's 11-month-old daughter. (AP Photo/Oklahoma Department of Corrections, File)  (The Associated Press)

Oklahoma plans to resume executions Thursday after botching its last one and will use the same three-drug method as a Florida lethal injection scheduled for the same day.

The drug mixture begins with the sedative midazolam and includes the same drugs used in Oklahoma's botched execution of Clayton Lockett in April. Lockett writhed on the gurney and moaned after he'd been declared unconscious.

Oklahoma increased the amount of midazolam it uses to mirror the exact recipe that Florida has used in 11 successful executions.

But midazolam also was used in problematic executions last year in Arizona and Ohio, and four Oklahoma death row inmates asked the U.S. Supreme Court on Wednesday to halt their executions. They argue the drug won't render them completely unconscious before the second and third drugs.