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GLOSSIP v. GROSS Opinion of the Court

and potassium chloride.1 The paralytic agent may be pancuronium bromide, vecuronium bromide, or rocuronium bromide, three drugs that, all agree, are functionally equivalent for purposes of this case. The protocol also includes procedural safeguards to help ensure that an inmate remains insensate to any pain caused by the administration of the paralytic agent and potassium chloride. Those safeguards include: (1) the insertion of both a primary and backup IV catheter, (2) procedures to confirm the viability of the IV site, (3) the option to postpone an execution if viable IV sites cannot be established within an hour, (4) a mandatory pause between administration of the first and second drugs, (5) numerous procedures for monitoring the offender’s consciousness, including the use of an electrocardiograph and direct observation, and (6) detailed provisions with respect to the training and preparation of the execution team. In January of this year, Oklahoma executed Warner using these revised procedures and the combination of midazolam, a paralytic agent, and potassium chloride. II

A

In June 2014, after Oklahoma switched from pentobarbital to midazolam and executed Lockett, 21 Oklahoma death row inmates filed an action under 42 U. S. C. §1983 challenging the State’s new lethal injection protocol. The complaint alleged that Oklahoma’s use of midazolam violates the Eighth Amendment’s prohibition of cruel and unusual punishment. In November 2014, four of those plaintiffs—Richard —————— 1 The

three other drug combinations that Oklahoma may administer are: (1) a single dose of pentobarbital, (2) a single dose of sodium thiopental, and (3) a dose of midazolam followed by a dose of hydromorphone.