This section is from the "Elixirs And Flavoring Extracts. Their History, Formulae, & Methods of Preparation" book, by John Uri Lloyd. Also available from Amazon: Elixirs and flavoring extracts,: Their history, formulae, and methods of preparation;
Hydrobromate of quinine, 128 grains.
Simple elixir, hydrobromic acid, of each a sufficient quantity.
Mix the hydrobromate of quinine with the simple elixir, and cautiously add of hydrobromic acid an amount sufficient to effect its solution. Filter, if necessary.
Each fluidrachm (teaspoonful) of the finished elixir contains one grain of hydrobromate of quinine.
The term often used for this substance"bromide of quinine" is incorrect, since alkaloids combine bodily with acids.