Provided is a system for identifying a drug container that includes an image capture device configured to capture an optical image of a portion of a label provided to the drug container, and a non-transitory computer storage medium storing a plurality of features for each of a plurality of different drugs included in a database. The features associated with each of the plurality of different drugs are suggestive of an identity of a drug identity but do not, alone, positively identify the drug identity. A processing component is configured to receive data representing the optical image transmitted by the image capture device and to identify a candidate for the drug identity based on the plurality of features associated with the candidate.