Similar term(s): skag, smack.
Pain-killing drug made from the chemical morphine, which is extracted from the
dried latex of the opium poppy. Heroin is extremely fast acting, and within a
few seconds a small dose will give the user an instant feeling of well-being.
Much larger doses can make users relaxed and drowsy.
Pure heroin is a white powder, but street heroin comes as a brownish-white
powder that can be smoked, snorted or dissolved and injected.
Source: GreenFacts, based on bbc.co.uk
A to Z of Drugs
Effects of prolonged use include long-term changes in certain brain receptors,
and changes in learning and in the response to stress.
Source: GreenFacts Digest