Homeopathic Materia Medica by Farrington


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Today I introduce to you for study a group of plants known as the ANACARDIACEAE. This is a very valuable order, from which we obtain several very useful medicines. First. The ANACARDIUM ORIENTALE, which comes from the East. Second. The ANACARDIUM OCCIDENTALE, the western Anacardium or cashew nut. Third. The COMOCLADIA DENTATA, which is the Rhus common to the southern parts of the United States and Cuba. Upon the blossoms of this plant bees feed in certain seasons of the year. Those who partake of the honey at such times, are liable to become affected with an eruption very much resembling that of erysipelas. This Comocladia is very similar to Rhus tox. Both remedies have pain with relief from motion : both may be called for in erysipelas ; both cause scarlet redness of the body, with burning and itching; both produce weakness, numbness, restlessness, etc. The drugs differ in their eye symptoms. Comocladia has pains in the right eye with a sensation as if that organ were larger or was being pushed out of the head. These eye symptoms are worse near a warm stove; while those of Rhus are relieved by this influence. APIS has eye symptoms aggravated from being near a warm stove. Comocladia resembles EUPHORBIUM OFFICINARUM in its skin symptoms even in the red stripes on the skin. Fourth. RHUS TOXICODENDRON or the poison ivy, which I will consider at length in my next lecture. Fifth. RHUS GLABRA, or the common sumach ; it is not so poisonous a variety of the Rhus as those already mentioned. It has cured occipital headache, and also epistaxis proceeding from the left side. Sixth. RHUS RADICANS, which is regarded by many as identical with Rhus tox. Seventh. The RHUS VENENATA, an exceedingly poisonous variety. It has a large blossom of a dark reddish-brown color. It is quite a tree, growing sometimes to the height of ten feet and very much resembling the Ailanthus.

This whole order of plants possesses a poisonous influence, poisoning the blood, and developing an eruption on the skin which is, at first, vesicular and finally pustular and eczematous. They may also produce an erythema ending in erysipelas. Despite the similarities thus far mentioned, there are great differences in their physiological action; in fact, these differences may be so great that, in some points, they may hold an opposite relation to each other.