And the isomers, unless specifically excepted, of the drugs in this Schedule whenever the existence of such isomers is possible within the specific chemical designation;
[And] the salts of the drugs listed in this Schedule, including the salts of the isomers as provided above whenever the existence of such salts is possible.
US: CSA Schedule II Section b Subsection 1 Item i Codeine, Schedule III Section e Subsection 1 Item i Codeine, Item ii Codeine and Schedule V Section c Subsection 1 Codeine
US: CSA Schedule II Section c Subsection 7 Dihydrocodeine, Schedule III Section e Subsection 1 Item iii Dihydrocodeine and Schedule V Section c Subsection 2 Dihydrocodeine
US: CSA Schedule II Section b Subsection 1 Item iii Ethylmorphine, Schedule III Section e Subsection 1 Item iv Ethylmorphine and Schedule V Section c Subsection 3 Ethylmorphine