Lawyers for the state of Oklahoma said in a letter to attorneys for two death row inmates that no compounded drugs would be used in their executions.
In a letter from Assistant Attorney General John Hadden on Friday the state informed lawyers for Clayton Lockett and Charles Warner that the state had secured non-compounded vercuronium bromide, the second of the three drugs it intends to use in the inmates' executions.
"The state previously had acquired manufactured versions of the two other drugs used in the lethal injection process (midazolam and potassium chloride)," AG Spokesman Aaron Cooper said in an email. "This means all three drugs to be used in the executions of Locket and Warner will be from manufactured sources. There will be no compounded drugs used in their executions."
Lockett and Warner sued the state in February over what they called a "veil of secrecy" surrounding state execution protocol. Lockett is set to be executed April 22, and Warner is set to die a week later.