Dose, 1 - 10 grs.; 1/2 - 6 dgms.

A white crystalline powder. Soluble, 1 in less than 1 of water giving a slightly acid liquid. Incompatibles, as for the sulphate.

Cinnamomi Cortex. Cinnamon Bark. The dried inner bark of shoots from the truncated stocks of Cinnamomum zeylanicum. Closely rolled quills about 3/8 of an inch in diameter; thin splintery, light yellow-brown externally, darker brown internally; odour fragrant and characteristic, taste warm, sweet and aromatic. Contains a volatile oil and tannic acid.

1Aqua Cinnamomi. 10 in 100 of water by distillation.

1Oleum Cinnamomi. Dose, 1/2 - 3 min.; 0.06 - 0.2 c.c. A pale yellow oil becoming reddish on standing, odour and taste of cinnamon.

1Spiritus Cinnamomi. Dose, 5 - 20 min.; 0.3 - 1.2 c.c. - 10; Alcohol, 90.

1Pulvis Cinnamomi Compositus. (Pulvis Aromaticus.) Dose, 10 - 40 grs.; 1/2 - 2 1/2 gms. - 33.3; Cardamon Seeds, 33.3; Ginger, 33.3.

2Tinctura Cinnamomi. Dose, 30 - 60 min.; 2 - 4 c.c. - 20; Alcohol 70% 100: by percolation.

Cocae Folia. Coca Leaves. The dried leaves of Erythroxy lum Coca. Brownish-green leaves, l 1/2 - 3 inches long, entire, oval and glabrous; the mid-rib projects as a rib from the dorsal surface, and ends in a spine; on the under surface a curved line may usually be seen on either side of the mid-rib. The leaves have a faint odour and a bitter taste succeeded by a sensation of numbness. The important active principle is the alkaloid cocaine.

2Extractum Cocę Liquidum. Dose, 30 - 60 min.; 2 - 4 c.c. An alcoholic extract.