The Federal Agency for Medicines and Health Products (famhp/fagg/afmps) has published the guidelines and Q&A documents related to the Falsified Medicines Directive.

They are available in Dutch: https://www.afmps.be/nl/MENSELIJK_gebruik/geneesmiddelen/geneesmiddelen/procedures_vhb/richtlijnen_van_het_fagg_voor_het

And in French: https://www.afmps.be/fr/humain/medicaments/medicaments/procedures_damm/directives_de_lafmps_pour_limplementation_des