Washington - Drugs giant Pfizer has introduced restrictions onits products to stop them being used for executions.
The new rules mean there are no more approved sources for the drugsused in lethal injections, the most common method of execution in theUnited States, the New York Times reported Friday.
"We strongly object to the use of any of our products in the lethalinjection process for capital punishment," the company said in astatement.
"We are enforcing a distribution restriction forspecific products that have been part of, or considered by somestates for their lethal injection protocols," the NewYork-headquartered firm said.
Official sources for the necessary drugs has reduced in recent years,leading some US states to turn to other drugs or other methods ofexecution, such as the electric chair or firing squad.