What do they look like?

A dispensing bottle inscribed Sydenham’s Laudanum
© The Board of Trustees of the Science Museum

Hypodermic syringe for cocaine
© The Board of Trustees of the Science Museum

Bottle of the opiate painkiller ‘Papine’
© The Board of Trustees of the Science Museum

Specimen jar containing coca leaves
© The Board of Trustees of the Science Museum

1890 medicine chest containing a bottle of opium
© Museum of London

A military survival kit from the Second World War containing benzedrine (amphetamine) tablets
© Imperial War Museum

Pipes for smoking opium, such as this example, may contain residues of the controlled drug opium.

Opium pipe
© The Board of Trustees of the Science Museum

Morphine sulphate auto-injector from the Gulf War, 1990-1991
© Imperial War Museum