I had an order to give Bactrim 500 cc iv over an hour. The pharmacy sent me a 500cc bag with the bactrim label printed out and place on the bag. I looked through from the other side and saw the printing on the premixed bag itself showed it actually was a bag of Heparin. I called the Pharmacy and they, of course, came right up and took the bag and evidence away with them. Moral---- I don't care how it's labeled. look to make sure it is still the right med in the bag.