Daffy's Elixir (also sometimes known as Daffey's Elixir or Daffye's Elixir) is a name that has been used by several patent medicines over the years. It was originally designed for diseases of the stomach, but was later marketed as a universal cure. It remained a popular remedy in Britain and later the United States of America throughout the eighteenth and nineteenth centuries.
Daffy's Elixir was one of the most popular and frequently advertised patent medicines in Britain during the 18th century. It is reputed to have been invented by clergyman Thomas Daffy rector of Redmile, Leicestershire, in 1647. He named it elixir salutis (lit. elixir of health) and promoted as a generic cure-all.
An early recipe for "True Daffy" from 1700 lists the following ingredients: aniseed, brandy, cochineal, elecampane, fennel seed, jalap, manna, parsley seed, raisin, rhubarb, saffron, senna and spanish liquorice. Chemical analysis has shown this to be a laxative made mostly from alcohol. Other recipes include Guiuacum wood chips, caraway, Salt of Tartar, and scammony.