Manufacturer asks Oklahoma to return any supplies of sedative used in lethal injections

OKLAHOMA CITY – The Illinois-based manufacturer of a drug used in Oklahoma’s lethal injection process is asking the state to return any supplies it may have obtained and not to use its products to execute prisoners.

The letter obtained Thursday by The Associated Press is from the drug manufacturer Akorn. It was sent to Oklahoma Attorney General Scott Pruitt last month.

Akorn is one of several manufacturers of midazolam, a common surgical sedative that Oklahoma began using last year as the first in a three-drug lethal injection protocol. The U.S. Supreme Court heard oral arguments Wednesday in a case in which three Oklahoma death row inmates are challenging the use of the drug.

It is not clear if Oklahoma obtained its midazolam from Akorn. State officials are prohibited from revealing the source.