People do not usually think of inhalants as drugs because most of them were never meant to be used that way. They include solvents, aerosols, some anesthetics, and other chemicals.
Examples are model airplane glue, nail polish remover, lighter and cleaning fluids, and gasoline.
Aerosols that are used as inhalants include paints, cookware coating agents, hair sprays, and other spray products. Amyl nitrite and butyl nitrite are inhalants that also are abused. Amyl nitrite is a clear, yellowish liquid that is sold in a cloth-covered, sealed bulb. Amyl nitrite is used for heart patients and for diagnostic purposes because it dilates the blood vessels and makes the heart beat faster. Reports of amyl nitrite abuse occurred before 1979, when it was available without a prescription.