Fluid extract of lupulin, 2 fluidounces.

Simple elixir, 14 fluidounces.

Alcohol, 1/2 fluidounce.

Carbonate of magnesium, a sufficient quantity.

Triturate the fluid extract of lupulin in a capacious mortar with carbonate of magnesium in amount sufficient to form a creamy mixture, then gradually add the simple elixir, stirring well; permit the mixture to macerate in a closed vessel for twelve hours, and filter. Lastly, mix the filtrate with the alcohol.

Each fluidrachm of the finished elixir represents such an amount of seven and one-half minims of fluid extract of lupulin as will dissolve in the menstruum.

Elixir of lupulin was introduced by Prof. C. Lewis Diehl in 1872.