Mucilago Chondri (Mucil. Chondr.), Mucilage of Chondrus, N.F. (Mucilage of Irish Moss).—Chondrus (3%) in water.
*Chromii Trioxidum (Chrom. Triox.), Chromium Trioxide, U.S.P. (“Chromic Acid,” Chromic Anhydride).—CrO3.
Dark purplish-red, odorless, deliquescent crystals. Very soluble in water (1:0.6). Decomposes, sometimes with dangerous violence, when brought into contact with organic solvents like alcohol and glycerin. Incompatible with most organic substances.
Action and Uses: A powerful oxidizing agent and caustic. Its action is somewhat difficult to control.
*Chrysarobinum (Chrysarob.), Chrysarobin, U.S.P.—Neutral principles from Goa powder.
Brownish to orange-yellow, tasteless, odorless powder, irritating to the mucous membrane. Slightly soluble in alcohol (1:385), soluble in chloroform (1:12.5) and very slightly soluble in water.
Action and Uses: Antiseptic and antiparasitic; a powerful irritant to the skin, used chiefly in the treatment of psoriasis, trichophytosis and alopecia areata.
*Unguentum Chrysarobini (Ung. Chrysarobin.), Chrysarobin Ointment, U.S.P.—Chrysarobin (6%) in benzoinated lard.
Cimicifuga (Cimicif.), Cimicifuga, U.S.P. (Black Snake-root, Black Cohosh, Macrotys).—A rhizome.
Action and Uses: One of the class of “domestic medicines” that were tried for a great variety of conditions (used as “stomachic, antispasmodic, aphrodisiac, diaphoretic, diuretic and expectorant”), but which have not been found to possess definite value.