Any substance or preparation containing any substance, (a) manufactured, sold or represented for use in, (i) the diagnosis, treatment, mitigation or prevention of a disease, disorder, abnormal physical or mental state or the symptoms thereof, in humans, animals or fowl, or (ii) restoring, correcting or modifying functions in humans, animals or fowl, (b) referred to in Schedule I, II or III, (c) listed in a publication named by the regulations, or (d) named in the regulations