The pharmaceutical giant Pfizer has taken steps to bar the use of its drugs in executions. In a statement, Pfizer said the company “strongly objects to the use of its products as lethal injections for capital punishment.” About two dozen other U.S. and European drugs firms have adopted similar restrictions. The human rights group Reprieve says all FDA-approved manufacturers of execution drugs have now blocked their sale for use in executions, potentially forcing states to go underground if they want to buy the drugs.