(1) In this Act—
(a) the expression “controlled drugs” means any substance or product specified in Part I, Part II, or Part III of Schedule 2; and
(b) the expressions “Class A drug”, “Class B drug” and “Class C drug” means any of the substances and products specified respectively in Part I, Part II and Part III of Schedule 2,
and the provisions of Part IV of Schedule 2 have effect with respect to the meanings of expressions used in that Schedule.
(2) The Minister may after consultation with or on the recommendation of the Advisory Council by order made by statutory instrument published in the Gazette make such amendments to Schedule 2 that is required for the purpose of adding any substance or product to, or removing any substance or product from, any of Parts I to III of that Schedule.
(3) A statutory instrument made under this section may amend Part IV of Schedule 2, and may do so whether or not it amends any other Part of that Schedule.