Opium, 4 troyounces.

Camphor, 1 troyounce.

Cochineal, 1 troyounce.

Oil fennel seed, 2 fluidrachms.

Tincture serpentaria, 16 fluidounces.

Spirit anise, 16 pints.

Water, 2 pints

Reduce the drugs to a coarse powder. Having previously dissolved the oil of fennel seed in the spirit of anise and mixed this with the water, add the powdered drugs and the tincture of serpentaria. Macerate fourteen days, stirring the mixture thoroughly each day, then filter. (Supplement to the London Pharmacopoeia, 1821.)

The original formula in the above work contains six ounces of " aurum musivum " (sulphuret of tin), which we omit.