THE BRONX - A Bronx pharmacy is open today after the Drug Enforcement Administration raided the business yesterday.About 15 DEA agents closed down the 161 Street pharmacy around 9:30 a.m. yesterday, boxing up several items from inside the Concourse Village store.One agent says they issued a search warrant, but didn't specify exactly what they were looking for.One of the managers says he thought it was just an inspection.No arrests have been made, and the investigation is ongoing.