_*Tinctura Strophanthi (Tr. Strophanth.), Tincture of Strophanthus, U.S.P._ (Strophanthi Tinctura, P.I.).--Strophanthus (10%) with the oil removed. Biologically assayed by producing death in frogs. Absolute alcohol content about 92 per cent.
DOSAGE: 0.5 Cc. or 8 minims (U.S.P.). Physicians who prescribe it should specify the biologically assayed preparation.
=Strychnina (Strych.), Strychnine, U.S.P.=--An alkaloid obtained from nux vomica.
Colorless, odorless crystals or white powder. Extremely bitter in very dilute solutions. Very slightly soluble in water (1:6420) and slightly soluble in alcohol (1:136).
ACTION AND USES: Stimulates the reflex activity of the spinal cord, but produces little or no effect on the higher nervous centers; is also used as a bitter tonic, generally in the form of a preparation of nux vomica.
As strychnine is so slightly soluble, it is generally prescribed as one of its salts. Of these, the nitrate meets every need.
DOSAGE: 0.0015 Gm. or 1/40 grain (U.S.P.).
_Elixir Pepsini, Bismuthi et Strychninae (Elix. Pepsin. Bism. et Strych.), Elixir of Pepsin, Bismuth and Strychnine, N.F._--Strychnine (0.0175%), tartaric acid, and elixir of pepsin and bismuth. Absolute alcohol content about 10 per cent.
_Pilulae Antidyspepticae (Pil. Antidyspep.), Antidyspeptic Pills, N.F._--Each pill contains strychnine (0.0016 Gm., or 1/40 grain), ipecac and pilular extract of belladonna leaves (each 0.0065 Gm., or 1/10 grain), mass of mercury, and compound extract of colocynth (each 0.13 Gm., or 2 grains).
USES: An objectionably named and misdirected mixture.
=Strychninae Acetas, Strychnine Acetate.=
_Liquor Strychninae Acetatis (Liq. Strych. Acet.), Solution of Strychnine Acetate, N.F._ (Hall's Solution of Strychnine).--Strychnine acetate (about 0.209%), alcohol, compound tincture of cardamom and water. Absolute alcohol content about 23 per cent.
=Strychninae Glycerophosphas (Strych. Glycerophos.), Strychnine Glycerophosphate, N.F.= (Strychnine Glycerinophosphate).
White, odorless crystals or powder, with a taste at first sweet, afterward intensely bitter. Slightly soluble in water (1:350), and in alcohol (1:310).
ACTION AND USES: Superfluous strychnine salt.
=*Strychninae Nitras (Strych. Nit.), Strychnine Nitrate, U.S.P.=