Heroin, also called diamorphine or diacetylmorphine, is a semisynthetic opioid derived from morphine, a natural constituent of the opium poppy. English chemist C. R. Alder Wright first synthesised heroin in 1874. It is highly Energetic and is substantial (as opposed to mechanical). Heroin is compressed relative to its base and enters the body rapidly, lasting up to three days. The life of the heroin user is ‘The Glow’.