Fluid extract of blackberry, 2 fluidounces.

Simple elixir, 14 fluidounces.

Alcohol, 1/2 fluidounces.

Carbonate of magnesium, a sufficient quantity.

Triturate the fluid extract of blackberry 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.

Each fluidrachm of the finished elixir represents seven and one half minims of fluid extract of blackberry. A formula for this elixir, containing blackberry root, cinnamon, and cloves, was suggested in the Druggists' Circular, 1880.