Singapore's drug situation
Learn about Singapore’s drug situation, related laws, and controlled substances.
Last updated 3 March 2026
While Singapore’s drug situation remains generally under control, there are worrying trends as the global drug situation continues to worsen. Methamphetamine, heroin and cannabis continue to be the most commonly abused drug in Singapore, and arrest statistics suggest growing permissiveness towards cannabis among youths.
Against this backdrop, CNB continues our relentless fight against the scourge of drugs, through a combination of preventive drug education, tough anti-drug laws, rigorous enforcement, international engagement and throughcare of ex-drug abusers that tackles both drug demand and supply.
In this section, you can learn more about the Singapore’s drug laws and the harmful effects of drugs as we debunk common myths on drugs.
Misuse of Drugs Act ('MDA')
The Misuse of Drugs Act (‘MDA’) is the main legislation for the control of dangerous and/or harmful drug and substances.
Intoxicating Substances Act ('INSA')
The Intoxicating Substances Act (‘INSA’) is the main legislation for prohibiting the misuse of inhalants and substances that may cause intoxication when inhaled or abused.
Drugs and Inhalants
Learn more about controlled drugs, psychoactive substances, and inhalants, their harmful effects, as well as the penalties for trafficking, import, export, possession and consumption of such substances.
Plants that contain controlled drugs
List of plants and their derivatives that contain controlled drugs and are thus illegal under Singapore’s Misuse of Drugs Act ('MDA').
Precursor Control
Learn how CNB regulates precursor chemicals under Singapore's Misuse of Drugs Act — including their listing, permit requirements, and the PATROL e‑service.
Myths and facts about drugs
Explore common myths and facts about drugs to better understand their harmful effects and the risks associated with misuse.