People do not usually think of inhalants as drugs because most of them were never meant to be used that way.
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. When it became available by prescription only, many users abused butyl nitrite instead. The immediate effects include decreased blood pressure followed by an increased heart rate flushed face and neck dizziness headache. The typical user is an adolescent male.