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;
Lactate of iron, 128 grains.
Lactic acid, simple elixir, of each a sufficient quantity.
Triturate the lactate of iron in a mortar with fourteen fluidounces of simple elixir, and add of lactic acid a quantity sufficient to render the liquid distinctly acid; then add enough simple elixir to bring the whole to the measure of sixteen fluidounces, and filter.
Each fluidrachm (teaspoonful) of the finished elixir contains one grain of lactate of iron.
The National Formulary recommends that one hundred and twenty-eight grains of lactate of iron, in crusts, and three hundred and eighty-four grains of citrate of potassium be dissolved in enough aromatic elixir to make sixteen fluidounces. Each fluidrachm contains one grain of lactate of iron. This formula is preferable to the foregoing.