Due regard being had to the differences in their commercial conditions, the contracting Powers shall limit the number of towns, ports or other localities through which the export or import of raw opium shall be permitted. To control the export of raw opium to countries which restrict its import, unless regulations on the subject are already in existence. The contracting Powers shall make regulations requiring that every package containing raw opium intended for export shall be marked in such a way as to indicate its contents, provided that the consignment exceeds 5 kilograms. The contracting Powers shall not allow the import and export of raw opium except by duly authorised persons. The product of raw opium obtained by a series of special operations, especially by dissolving, boiling, roasting and fermentation, designed to transform it into an extract suitable for consumption.
Prepared opium includes dross and all other residues remaining when opium has been smoked.
The contracting Powers shall take measures for the gradual and effective suppression of the manufacture of, internal trade in, and use of prepared opium, with due regard to the varying circumstances of each country concerned, unless regulations on the subject are already in existence. The contracting Powers shall enact pharmacy laws or regulations to confine to medical and legitimate purposes the manufacture, sale and use of morphine, cocaine and their respective salts unless laws or regulations on the subject are already in existence. They shall cooperate with one another to prevent the use of these drugs for any other purpose. The contracting Powers shall use their best endeavours to control, or to cause to be controlled, all persons manufacturing, importing, selling, distributing and exporting morphine, cocaine, and their respective salts, as well as the buildings in which these persons carry on such industry or trade. The contracting Powers shall take measures to prohibit, as regards their internal trade, the delivery of morphine, cocaine, and their respective salts to any unauthorised persons, unless regulations on the subject are already in existence.