What do the last two digits of an NDC number indicate?

The last two digits of an NDC (National Drug Code) number specifically indicate the package size. An NDC is a unique identifier for medications in the United States and follows a specific format consisting of three segments: the labeler code, the product code, and the package code.

The labeler code, which is the first segment, identifies the manufacturer or distributor, while the product code identifies the specific formulation, strength, and dosage form of the drug. The last segment, or package code, contains the specific details about the package size. This code helps in distinguishing between different packaging configurations for the same drug product, making it crucial for proper inventory management, billing, and dispensing in pharmacies.

Understanding that the last two digits relate to package size is important for professionals in the pharmacy field, as it ensures they can accurately identify the quantities and types of medication they are dispensing or stocking.