_Liquor Chlori Compositus (Liq. Chlor. Co.), Compound Solution of Chlorine, N.F._ (Chlorine Water).--A solution containing chlorine, oxides of chlorine and hydrochloric acid made by treating potassium chlorate with hydrochloric acid and dissolving the gases produced in water. USES: Antiseptic. DOSAGE: 4 Cc. or 1 fluidrachm (N.F.). =Chondrus (Chondrus), Chondrus, U.S.P.= (Irish Moss, Carrageen).--Plant. ACTION AND USES: Demulcent and lubricant, possessing no advantages over other gums, acacia, for instance. _Gelatinum Chondri (Gelat. Chondr.), Chondrus Gelatin, N.F._ (Irish Moss Gelatin).--Obtained by extraction with hot water and evaporation to semifluid consistency. _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).--CrO{3}. 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. DOSAGE: 1 Gm. or 15 grains (U.S.P.). _Extractum Cimicifugae (Ext. Cimicif.), Extract of Cimicifuga, U.S.P._ (Powdered Extract of Cimicifuga).--One Gm. extract represents 4 Gm. cimicifuga. DOSAGE: 0.25 Gm. or 4 grains (U.S.P.). _Fluidextractum Cimicifuga (Fldext. Cimicif.), Fluidextract of Cimicifuga, U.S.P._ (Fluidextract of Black Cohosh, Fluidextract of Black Snakeroot).--Cimicifuga (100%). Absolute alcohol content about 80 per cent. DOSAGE: 1 Cc. or 15 minims (U.S.P.).