The Saudi Food and Drug Authority (SFDA) passed a requirement for printing 2D barcodes on pharmaceutical products in April 2013. The milestone requirements are occurring in phases, with phase 1 starting in March 2015 which only required a 2D labeling of drug products. Phase 2 begins in March 2017 and will require serialization. Additionally, Saudi Arabia follows the GS1 standard.
Today, manufacturers selling to Saudi are only required to print a 2D code including data elements such as GTIN, lot number, and expiration date on the unit level. In 2017 however, the requirements will move to serialization, meaning serialized imprints on all units with serialized data carriers. See https://lspedia.com/us-serialization for details of serialized data carriers.