. The elements of materia medica and therapeutics (Volume 2) . d to improve thetone of the digestive apparatus. { Pharm. vol. v. p. 254, from of Med. Science.) Apocynum Cannabinum. — IndianHemp, U. S. Secondary List. Sp. char.—Stem upright, oblong, tomentose beneath, cymeslateral, longer than the leaves. The Indian hemp is a perennial plant,usually about two or three feet in height,having a red or brown stem and oblongovate, somewhat pubescent leaves. Theflowers are small and of a greenish whitecolour externally, and pink internally inpaniculate cymes. This
. The elements of materia medica and therapeutics (Volume 2) . d to improve thetone of the digestive apparatus. { Pharm. vol. v. p. 254, from of Med. Science.) Apocynum Cannabinum. — IndianHemp, U. S. Secondary List. Sp. char.—Stem upright, oblong, tomentose beneath, cymeslateral, longer than the leaves. The Indian hemp is a perennial plant,usually about two or three feet in height,having a red or brown stem and oblongovate, somewhat pubescent leaves. Theflowers are small and of a greenish whitecolour externally, and pink internally inpaniculate cymes. This species is also found in mostparts of the United States, in waste andneglected places. The root is the portion used in medicine; it is horizontal, extending to a greatdistance, of a deep brown colour, becoming darker by age, and when woundedpours forth a thick lactescent juice. When fresh it is nauseous, somewhat acridand permanently bitter, and possesses a disagreeable odour. When dried it is brittle and easily reduced to powder, which resembles that of. Apocynum Cannabinum. 376 ELEMENTS OF MATERIA MEDICA. ipecacuanha. It is composed of two portions, an external cortical portion, whichis brown without, and white within, and a ligneous cord, which is of a yellowishwhite colour. Griscom, [Journ. of Philada. College of Pharmacy, vol. v. p. 136, from of Med. Science,) found it to contain tannin, gallic acid (?), gum, resin,wax, fecula, bitter principle or apocynin, colouring matter, and woody , also examined it with similar results. The root of this plant is very potent in its effects on the animal economy. , {op. citat.) states that its first effect when taken into the stomach isthat of producing nausea, if given in sufficient quantity, which need not be large,and if this be increased, vomiting will be the result. It also acts upon thebowels, giving rise to copious discharges. These effects are attended with a re-duced frequency of the pulse. A
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