The temporary order delays executions scheduled for July and August while attorneys prepare filings about the state's decision to boost the dosages of its lethal injection drugs.
The one-page order by Columbus federal judge Gregory Frost on Tuesday affects the state's latest death penalty policy change, which was announced in late April. Ohio uses two drugs injected simultaneously in executions. The policy change considerably increases the amount of the sedative and raises the amount of the painkiller.
The procedure update followed the Jan. 16 execution of Dennis McGuire, who repeatedly gasped during the record 26 minutes it took him to die.
The state said in April it was making the changes "to allay any remaining concerns" after McGuire's execution, though it stood by the way McGuire was put to death.