(controlled drugs), which can only be dispensed in accordance with the stricter requirements of the state or territory in which they are prescribed (and which vary between states and territories).

; Hong Kong : In Hong Kong, dihydrocodeine is regulated under Schedule 1 of Hong Kong's Chapter 134 Dangerous Drugs Ordinance. It can only be used legally by health professionals and for university research purposes. A pharmacist can dispense Dihydrocodeine when furnished with a doctors prescription. Anyone who supplies the substance without