Cannabis plants contain a variety of cannabinoids, and cannabidiol is one of them. Cannabidiol has no psychoactive effects and is not used as a risk of drug abuse. It is not a dangerous drug and is not controlled by the Dangerous Drugs Ordinance (Chapter 134 of the Laws of Hong Kong).
On the other hand, cannabis, cannabis resin and several cannabinoids (including tetrahydrocannabinol (THC) and cannabidiol (CBN)) are all dangerous drugs controlled by the Dangerous Drugs Ordinance.
It should be noted that cannabidiol is generally extracted from cannabis, and cannabidiol products may contain small amounts of THC. Products containing THC or other dangerous drugs, regardless of their concentration, are considered dangerous drugs and are controlled by the Dangerous Drugs Ordinance. Trafficking in dangerous drugs, or illegally importing dangerous drugs into Hong Kong and exporting, acquiring, supplying, and manufacturing dangerous drugs from Hong Kong constitute criminal offences. Illegal possession or taking of dangerous drugs is also a criminal offence.
Trafficking in substances that appear to be dangerous drugs (that is, substances that are represented or displayed as dangerous drugs, even if they are not in fact dangerous drugs) is also a criminal offence. For example, labeling products containing pure cannabidiol as "cannabis" products may be illegal.
According to the Pharmacy and Poisons Ordinance (Chapter 138 of the Laws of Hong Kong), any pharmaceutical products containing cannabidiol are classified as Part 1 Poisons and Prescription Drugs and are regulated by the Regulated Pharmaceutical Products System. These pharmaceutical products can only be supplied by registered doctors or veterinarians, or sold by registered pharmacies under the supervision of pharmacists in accordance with prescriptions issued by registered doctors or veterinarians in Hong Kong. So far, there are no registered pharmaceutical products containing cannabidiol in Hong Kong.