Ohio is planning on using an unprecedented drug combination for an execution after a Danish company banned its sedative from involvement in the death penalty. Ohio officials say they will be forced to use midazolam and hydromorphone on a death row prisoner next month. The combination has never been tried in the United States. Ohio says it has run out of pentobarbital, made by the Danish firm Lundbeck and now banned from U.S. prisons that carry out capital punishment.