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.
_*Tinctura Capsici (Tr. Capsic.), Tincture of Capsicum, U.S.P._--Capsicum (10%) in alcohol and water. Absolute alcohol content about 88 per cent.
_Tinctura Capsici et Myrrhae (Tr. Capsic. et Myrrh.), Tincture of Capsicum and Myrrh, N.F._ (Hot Drops, Thomsonian Number Six.)--Capsicum (3%) and myrrh (12%) in alcohol and water. Absolute alcohol content about 85 per cent.
=Caramel (Caram.), Caramel, N.F.= (Saccharum Ustum, Burnt Sugar Coloring).