ACTION AND USES: A narcotic poison, producing a mild delirium. Used in sedative mixtures, but of doubtful value. Also employed to color corn remedies. _Extractum Cannabis (Ext. Cannab.), Extract of Cannabis, U.S.P._--Assayed biologically by producing incoordination in dogs. DOSAGE: 0.01 Gm. or 1/6 grain (U.S.P.). Physicians who prescribe extract of cannabis should specify the biologically assayed preparation. _Fluidextractum Cannabis (Fldext. Cannab.), Fluidextract of Cannabis, U.S.P._--Cannabis (100%). Assayed biologically by producing incoordination in dogs. Absolute alcohol content about 80 per cent. DOSAGE: 0.1 Cc. or 1-1/2 minims (U.S.P.). Physicians who prescribe fluidextract of cannabis should specify the biologically assayed preparation. _Tinctura Cannabis (Tr. Cannab.), Tincture of Cannabis, U.S.P._ (Tinctura Cannabis Indicae, U.S.P. VIII).--Cannabis (10%) in alcohol. Assayed biologically by producing incoordination in dogs. Absolute alcohol content about 90 per cent. DOSAGE: 0.75 Cc. or 12 minims (U.S.P.). Those physicians who prescribe tincture of cannabis should specify the biologically assayed preparation. =*Cantharis (Canthar.), Cantharides, U.S.P.= (Spanish Flies, Russian Flies).--A beetle. ACTION AND USES: Externally, rubefacient and vesicant. Internally, genito-urinary irritant, often producing serious nephritis. Its internal use is probably never justified. _*Ceratum Cantharidis (Cerat. Canthar.), Cantharides Cerate, U.S.P._ (Blistering Cerate).--Cantharides (35%) with turpentine, glacial acetic acid, yellow wax, rosin and benzoinated lard. _Collodium Cantharidatum (Collod. Canth.), Cantharidal Collodion, U.S.P._ (Blistering Collodion, Vesicating Collodion).--The glacial acetic acid acetone extract from cantharides (60%) in flexible collodion. _Emplastrum Cantharidis (Emp. Canthar.), Cantharides Plaster, U.S.P._--Cantharides cerate spread on rosin plaster. Each square centimeter of spread plaster contains 0.1 Gm. of cantharides cerate. USES: Convenient form for applying cantharides as a vesicant. Requires from six to eight hours to produce a blister. May produce poisoning by absorption through the skin. _*Tinctura Cantharidis (Tr. Canthar.), Tincture of Cantharides, U.S.P._ (Cantharidis Tinctura P.I.).--Cantharides (10%) in alcohol. Absolute alcohol content about 90 per cent. =*Capsicum (Capsic.), Capsicum, U.S.P.= (Cayenne Pepper, African Chillies).--Fruit. ACTION AND USES: Carminative and rubefacient; also stomachic, especially in alcoholic gastritis (as the tincture). _Emplastrum Capsici (Emp. Capsic.), Capsicum Plaster, U.S.P._--Oleoresin of capsicum spread on rubber plaster. Each 15 square cm. of spread plaster contains 0.25 Gm. of oleoresin of capsicum. _Oleoresina Capsici (Oleores. Capsic.), Oleoresin of Capsicum, U.S.P._--Highly irritant. DOSAGE: 0.03 Gm. or 1/2 grain (U.S.P.).