Fluid extract of coca, 2 fluidounces.

Simple elixir, 14 fluidounces.

Purified talcum, 120 grains.

Triturate the fluid extract of coca with the purified talcum, and gradually add the elixir, shaking well together and agitating occasionally for twenty-four hours, then filter.

Each fluidrachm represents seven and one-half grains of coca.