NAMES, PROPERTIES, AND DOSE OF MEDICINES. 157 
BELLADONNA (tincture of).—The leaves of atropa bella- 
donna, commonly known as “ deadly nightshade.” Bella- 
donna is mostly given in nervous diseases. Dose of the 
‘tincture 20 to 380 drops. Dangerous. 9d. per oz. 
Benzorn Gum forms one of the principal ingredients in 
that well-known preparation, Friar’s Balsam.—Dose of the 
-compound tincture 1 to 2 drachms; used for fresh wounds 
internally; for old coughs, dose 5 to 20 drops. Safe. 9d. 
per oz. : 
_. BismutH.—A. crude metal. Of the many preparations of 
bismuth the subnitrate or white bismuth is mostly used. 
Snuffed up the nose it will relieve cold in the head; taken 
internally it will relieve indigestion. Dose: 5 to 30 grains. 
Use carefully. ~1s. 6d. per oz. : 
BroMIvE oF Sopium.—Said to be a specific for sea-sickness. 
Dose: from 5 grains tol drachm. Safe. 9s. 6d. per oz. 
CaFFEIN, (an alkaloid).—Obtained from the seeds of 
Arabian coffee. Said to be good for headaches. Dose: 1 to 
5 grains. Care in using. 4s. per oz. 
_ Caseput, Oil of—Employed in flatulent colic, hysteria, 
and cholera. Dose: 1 to 4 drops. Care. 1s. 6d. per oz. 
_ Canwasis Inpicus (Indian Hemp).—Is a narcotic ; in its 
anodyne and soporific action it resembles opium. It has been 
given in the different forms of neuralgia, in spasmodic coughs, 
asthma. Dose of the tincture, 5 to 80 drops. Dangerous in 
over-doses. 1s. per oz. 
CaNnELLA.—The bark of canella alba or laurel-leafed 
‘eanella, deprived of its corky layer and dried, mixed with 
socratim aloes, forms the well-known Hiera Piera. Dose of 
_the powder 14 to 30 grains. Care. 6d. per oz. 
CANTHARIDES.—The blister beetle or Spanish fly, collected 
in Russia and Sicily, but chieflyin Hungary. Used externally as 
a blister ; internally itis given in chronic affections of the 
