In Naperville, a man called a Walgreens pharmacist, saying he would hurt her if she didn't give all of the oxycodone to a person in the drive-through window.
And in Saint Charles, a person with a gun forced another Walgreens pharmacist to give pills to someone in the drive-through as well.
Investigators say they are convinced that the two robberies are related. Officials are still reviewing surveillance tape, but no suspects are in custody.
