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.