Valerianate of quinine, 128 grains

Simple elixir, 16 fluidounces.

Valerianic acid, a sufficient quantity.

Powder the valerianate of quinine in a mortar and gradually add the simple elixir. Then cautiously drop into the mixture valerianic acid sufficient to render the liquid transparent, stirring continually, and filter if necessary.

This formula conforms to that by Prof. C. Lewis Diehl (1872), read before the Louisville College of Pharmacy.

Each fluidrachm (teaspoonful) of the finished elixir contains one grain of valerianate of quinine.