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;
Bromide of lithium, 640 grains.
Citric acid, 30 grains
Simple elixir, enough to make 16 fluidounces.
Dissolve the bromide of lithium and the citric acid in the simple elixir, and filter.
Each fluidrachm contains five grains of bromide of lithium.