Small glass bottle with glass stopper containing a trace of chlorodyne tincture. 81 mm. Part of an antidote case of 6 drugs owned by Professor George Harley. Handwritten label reads, 'Chlorodyne'. Chlorodyne is a mixture of laudanum (an alcoholic solution of opium), tincture of cannabis and chloroform. It was invented in the 19th century by Dr. John Collis Browne as a treatment for cholera. It was sold as a patent medicine in the 19th and early 20th century and was used to treat coughs, diarrhoea, insomnia and to relieve pain. English, 1860-1890. Glass bottle for chlorodyne tincture 1860-1890