3. Schedule 2 to the Act (which specifies the drugs which are subject to control under that Act) shall be amended by the insertion in paragraph 1 of Part I of that Schedule—
(a)after the word “Diethylthiambutene”, of the words “Difenoxin (1-(3-cyano-3,3-diphenylpropyl)-4-phenylpiperidine-4-carboxylic acid)”; and
(b)after the word “Trimeperidine”, of the words
“4-Bromo-2,5-dimethoxy-α-methylphenethylamine ”