Poppers, chemically known as alkyl nitrites (including amyl nitrite), have been illegal in Singapore since 2019. These substances are inhaled for their psychoactive effects and are classified by the Central Narcotics Bureau (CNB) as controlled drugs under the Controlled Drugs Act. All isomers of amyl nitrite are regulated.
Possession, sale, or trafficking of amyl nitrites without a license carries harsh consequences, including substantial fines and imprisonment. The strict enforcement reflects Singapore's zero-tolerance policy toward controlled substances.