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;
Ammonio-citrate of iron (soluble citrate), 256 grains.
Simple elixir, a sufficient quantity.
Dissolve the ammonio-citrate of iron in twelve fluidounces of simple elixir, and bring this to the measure of sixteen fluidounces by the addition of a sufficient quantity of simple elixir.
Each fluidrachm (teaspoonful) of the finished elixir represents two grains of ammonio-citrate of iron, the same as that adopted by the American Pharmaceutical Association, 1873.