=*Cresol (Cresol), Cresol, U.S.P.=--A mixture of isomeric cresols, C{6}H{4}(CH{3})OH. Obtained from coal tar. Colorless, yellowish or brownish liquid, darkening with age and exposure to light, and having a phenol-like odor. Soluble in water (1:50), usually forming a cloudy solution, and miscible with alcohol, ether, petroleum benzin or glycerin. ACTION AND USES: Action similar to phenol. Used as a disinfectant and antiseptic. Approximately four times as germicidal as phenol, and no more toxic. DOSAGE: 0.05 Cc. or 1 minim (U.S.P.). _*Liquor Cresolis Compositus (Liq. Cresol. Co.), Compound Solution of Cresol, U.S.P._--Cresol (50%) with a potassium soap solution. =Creta Praeparata (Cret. Praep.), Prepared Chalk, U.S.P.= (Drop Chalk).--A native calcium carbonate. White, amorphous, odorless, tasteless powder. Almost insoluble in water, insoluble in alcohol. Decomposed and dissolved by dilute acids. ACTION AND USES: Used internally as a mild alkali, as antacid and against diarrhea. DOSAGE: 1 Gm. or 15 grains (U.S.P.) as a powder or in suspension. _Mistura Cretae (Mist. Cret.), Chalk Mixture, U.S.P._--Compound chalk powder (20%) with cinnamon water and water. DOSAGE: 15 Cc. or 4 fluidrachms (U.S.P.). _Pulvis Cretae Aromaticus._--See under =Cinnamomum Saigonicum.= _Pulvis Cretae Compositus (Pulv. Cret. Co.), Compound Chalk Powder, U.S.P._--Prepared chalk (30%), with acacia and sugar. DOSAGE: 2 Gm. or 30 grains (U.S.P.) =Crocus (Croc.), Crocus, N.F.= (Saffron).--Stigmas of the flowers. ACTION AND USES: Yellow coloring agent without definite therapeutic indications. Has been used as "stimulant and antispasmodic." _Tinctura Croci (Tr. Croc.), Tincture of Saffron, N.F._--Saffron (10%) in diluted alcohol. Absolute alcohol content about 45 per cent. =Cubeba (Cubeb.), Cubeb, U.S.P.= (Cubebs).--Fruit. ACTION AND USES: Formerly much used internally as antiseptic, diuretic and as a stimulant to the genito-urinary membranes; also to some extent as a stimulating expectorant. Probably of little value. DOSAGE: 1 Gm. or 15 grains (U.S.P.). The oleoresin is preferred. _Fluidextractum Cubebae (Fldext. Cubeb.), Fluidextract of Cubeb, N.F._--Cubeb (100%). Absolute alcohol content about 80 per cent. DOSAGE: 1 Cc or 15 minims (N.F.). _Oleoresina Cubebae (Oleores. Cubeb.), Oleoresin of Cubeb, U.S.P._ DOSAGE: 0.5 Gm. or 8 grains (U.S.P.). _Tinctura Cubebae (Tr. Cubeb.), Tincture of Cubeb, N.F._--Cubeb (20%) in alcohol. Absolute alcohol content about 90 per cent. DOSAGE: 4 Cc. or 1 fluidrachm (N.F.). _Trochisci Cubebae (Troch. Cubeb.), Troches of Cubeb, U.S.P._--Each troche contains oleoresin of cubeb (0.02 Gm.) with oil of sassafras, extract of glycyrrhiza and acacia, flavored with syrup of tolu. =*Cupri Sulphas (Cupr. Sulph.), Copper Sulphate, U.S.P.= (Cupric Sulphate).--CuSO{4} + 5H{2}O.