Irvine Welsh with the same name in 2013. "Glue" (2001) was a return to the locations, themes and episodic form of "Trainspotting", telling the stories of four characters spanning several decades in their lives and the bonds that held them together. Having revisited some of them in passing in "Glue", Welsh brought most of the "Trainspotting" characters back for a sequel, "Porno", in 2002. In this book Welsh explores the impact of pornography on the individuals involved in producing it, as well as society as a whole, and the impact of ageing and maturity in individuals against their will. The book is
Heroin time was a popular recreational drug, and Bayer wished to find a similar but non-addictive substitute to market. However, contrary to Bayer's advertising as a "non-addictive morphine substitute," heroin would soon have one of the highest rates of addiction among its users. From 1898 through to 1910, diamorphine was marketed under the trademark name Heroin as a non-addictive morphine substitute and cough suppressant. In the 11th edition of "Encyclopædia Britannica" (1910), the article on morphine states: "In the cough of phthisis minute doses [of morphine] are of service, but in this particular disease morphine is frequently better replaced by codeine