Tonga.

Imported from Figii.—Source unknown.

Preparation.—Fluid Extract of Touga.

Dose.—From ten drops to one drachm.

Therapeutic Action.—This agent has been employed in the treatment of neuralgia with great success, and those advertising it claim it to be specific. Dr. Ringer says of it:—

"This remedy, whilst apparently highly useful in neuralgia, produces no toxic symptoms, for we have given two half-ounce doses of the liquid extract at half an hour's interval, and repeated it again in two hours, without producing any effect except slight drowsiness. These doses did not affect the pupil, nor increase nor lessen the secretion of the mouth or skin; neither did they affect sensation of the skin supplied by the fifth nerve.

The American Eclectic Materia Medica and Therapeutics, 1898, was written by John M. Scudder, M.D.