Fluid extract of rhamnus frangula, 2 fluidounces.

Fluid extract of rhubarb, 2 fluidounces.

Simple elixir, 14 fluidounces.

Alcohol, 1/2 fluidounce.

Carbonate of magnesium, a sufficient quantity.

Mix the fluid extracts, and evaporate them, at a temperature not exceeding 150 F., until reduced to two fluid ounces. Triturate this in a capacious mortar with carbonate of magnesium in amount sufficient to form a creamy mixture, then gradually add the simple elixir, stirring well, and filter. Lastly, mix the filtrate with the alcohol.

Each fluidrachm of the finished elixir represents seven and one-half minims each of fluid extracts of rhubarb and rhamnus frangula.