Compound fluid extract of helonias, 2 fluidounces.

Simple elixir, 14 fluidounce.

Alcohol, 1/2 fluidounce.

Carbonate of magnesium, a sufficient quantity.

Triturate the compound fluid extract of helonias with carbonate of magnesium in sufficient amount to form a creamy mixture, then gradually add the simple elixir, and filter. Mix the alcohol with the filtrate.

Each fluidrachm of the finished preparation will contain such proportion of seven and one-half minims of compound fluid extract of helonias as will dissolve in one fluidrachm of the menstruum.