Heroin, sometimes referred to as smack, (PROSE: Slow Decay) was an addictive psychoactive drug from Earth. It was synthesised from opium, and taken via hypodermic injection.
As part of her Adjudicator training, Roz Forrester experienced the effects of heroin through electroencephalic stimulation. In her native time of the 30th century, heroin was coming back in fashion as a natural alternative to technological highs. (PROSE: Sky Pirates!)
An alternate version of Sam Jones was a heroin addict, desperate for her next fix. Fitz Kreiner talked her through the drug's harsh withdrawal symptoms. (PROSE: Unnatural History) Alun Griffiths, Julie Jones (PROSE: SkyPoint) and Ricky were heroin users. (PROSE: Slow Decay)