Pharmaceutical company Pfizer said Friday it was blocking use of its drugs in lethal injections, which means all federally-approved drugmakers whose medications could be used for executions have now put them off limits.
"Pfizer makes its products to enhance and save the lives of the patients we serve. Consistent with these values, Pfizer strongly objects to the use of its products as lethal injections for capital punishment," the company said in the statement made public on its website Friday.
The company's announcement has limited immediate impact. Its action is an enhancement of a previous policy that follows Pfizer's $15.23 billion purchase of Lake Forest, Illinois-based Hospira Inc. last year. Hospira had previously prohibited the use of its drugs in capital punishment, as have several other drugmakers.
Pfizer shares closed even Friday at $33.19.
The development means the approximately 25 FDA-approved companies worldwide able to manufacture drugs used in executions have now blocked the use of the drugs, according to Reprieve, a New York-based human rights organization opposed to the death penalty.
"Pfizer's actions cement the pharmaceutical industry's opposition to the misuse of medicines," Maya Foia, Reprieve director, said in a statement.
Pfizer's announcement was unlikely to have much effect on executions, which have slowed in recent years as drugmakers' prohibition on the drugs took effect.
However, as recently as last year, records showed that labels of Arkansas execution drugs appeared to indicate that the state's potassium chloride, which stops the heart, was made by Hospira. Pfizer spokeswoman Rachel Hooper said the company couldn't speculate on the impact of its decision.
Ohio, which last executed an inmate in January 2014, has repeatedly pushed back executions while it looks for drugs. It now has more than two dozen inmates with firm execution dates, but no drugs to put prisoners to death with.
Some remaining death penalty states have been using compounded versions of drugs that fall outside of FDA approval.
Texas, with the country's busiest death chamber, obtains its pentobarbital for lethal injections from a supplier the state identifies only as a licensed compounding pharmacy. A law that took effect last year keeps the identity of the drug provider confidential. The state has carried out six executions so far in 2016. At least eight are scheduled for the coming months, including two in June.
Texas is fighting a lawsuit trying to force it to identify drugmakers from April 2014, when attorneys unsuccessfully filed appeals to stop two executions by seeking the identity of the drug providers, and September 2015, when the state's secrecy law took effect.
Similar lawsuits about whether states must identify their providers have been argued in states including Georgia, Arkansas and Missouri.
There have been 14 executions in the U.S. so far in 2016 in five states: six in Texas, five in Georgia and one each in Alabama, Florida and Missouri. Last year, there were 28 in six states.
Some states have passed laws allowing older methods of execution if needed. In March, the Virginia Senate passed a bill allowing the use of the electric chair, due to a shortage of lethal injection drugs. In 2014, Tennessee passed a similar law.
Last year, Utah approved the use of firing squads for executions if drugs aren't available, while Oklahoma became the first state to approve nitrogen gas for executions if lethal injection drugs become unavailable or are deemed unconstitutional.
Mississippi's attorney general said in January he wants lawmakers to consider all three methods: electrocution, firing squad and nitrogen gas.
The seven drugs affected by Pfizer's policy: pancuronium bromide, potassium chloride, propofol, midazolam, hydromorphone, rocuronium bromide and vecuronium bromide.
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