Article L5132-8 of the French Public Health Code
The production, manufacture, transport, import, export, possession, offer, transfer, acquisition and use of plants, substances or preparations classified as poisonous are subject to conditions defined by decrees of the Conseil d’Etat. These decrees may prohibit any operation relating to these plants and substances; they may in particular, after consulting the National Academies of Medicine and Pharmacy, prohibit the prescription and incorporation into preparations of certain of these plants and substances…