This bolsters the association's previous positions to oppose the use of the term "drug" for chemicals used in lethal injection and to oppose laws that require or prohibit pharmacists from participation in lethal injection cases.
The group acted this week because of increased public attention on lethal injection, said Michelle Spinnler, spokeswoman for the American Pharmacists Association.
That spotlight includes a January Supreme Court decision to stay the execution
for three death row inmates in Oklahoma. This was prompted by Clayton Lockett's execution
by lethal injection nearly one year ago in which he writhed on a gurney for 43 minutes before he died from a heart attack.
In Georgia last month, the execution of female death row inmate Kelly Renee Gissendaner was postponed as a precaution
when the execution team checked the medications and discovered they looked cloudy.
Thirty-two sates allow capital punishment, and lethal injection is still the most common method. Last month, Utah Gov. Gary R. Herbert signed a law r
einstating firing squads as a method of execution in cases in which lethal injection medications are not available.
Of the eight inmates currently on death row in Utah, three opted for the new choice of death by firing squad.
Pentobarbital is the preferred drug used for lethal injection. In Texas, the department of criminal justice told CNN in March they are running out of their supply.
In July 2011, Lundbeck Inc., the manufacturer of pentobarbital, decided to no longer provide the drug to prisons for use in capital punishment.
The companies that manufacture the products traditionally used in executions almost unilaterally decided to stop selling to institutions that used the products for that purpose, so states then turned to compounded preparations, Spinnler said.
"Pharmacists should not be involved in preparation of these products or involved in executions in any other way." she says.
The new declaration by the American Pharmacists Association aligns with positions held by other professional medical organizations such as the American Medical Association, the American Nurses Association and the American Board of Anesthesiology.