Citarin

A white, crystalline powder (sodium anhydromethylene citrate), which is used as a uric-acid solvent in gout and rheumatism in doses of 15 to 30 grains three or four times a day.

Citrophen

A white powder (paraphenetidin citrate) used in 8-grain doses (as powders) for neuralgia and as an antipyretic.

Citrullin

The resinoid of colo-cynth, possessing the properties of the drug, and administered per rectum in doses of 1/12 to 1/6 grain, dissolved in 15 minims each of alcohol and glycerin, with a sufficiency of water.

Cobalt and Potassium Nitrite, or cobalt yellow, is used in asthma and heart troubles. Dose:1/4 to 1/2 grain.

Colalin - A yellow powder. Is said to be a combination of cholalic acid and magnesium carbonate. An intestinal antiseptic and hepatic stimulant. Dose: 1/8 to 1/4 grain.

Collargolol, or colloid silver {argentum cridi), occurs in black, glistening scales, and is said to contain 90 per cent. of metallic silver. Dose: 1/2 to 2 grains in pill or tablet. Applications (antiseptic) are 1 to 5 per cent. or stronger.

Comain

A preparation obtained by the action of camphor and iodoform on sesame oil, mono- and di-iodide of camphor being formed. Used in tuberculosis.

Conine And Its Salts

The hydrobromide is most used, although rarely, in asthma and kindred nervous affections of the bronchi. Dose: 1/100 to 1/60 grain.

Convallamarin, the peculiar glucoside of Convallaria majalis, is prescribed in heart-disease, especially when accompanied by oedema, as a heart-stimulant and diuretic. Dose:1/2 to 1 grain.

Cordol

Tribrom-salol. A crystalline powder insoluble in water, sparingly soluble in alcohol and in ether.

Cornutine

An alkaloid isolated by Robert from ergot, and said to possess the uterine stimulant action of the drug. Dose (of the citrate): 1/12 to 1/6 grain.

Coryfin

The ethyl-glycollic ester of menthol. A colourless, odourless, oily liquid. Used in pharyngeal catarrh as a gargle (5 drops to 10 oz. of tepid water) or inhalation (10 drops to 1 pint of hot water), and as a paint in nasal catarrh and headache. Dose as a carminative:Four drops on sugar.

Cosaprin is a sodium acet-para-sulphanilate, and is a substitute for acetanilide, readily soluble in water. Dose: 3 to 8 grains.

Cotargent

The trade-name for a preparation of colloidal silver.

Cotarnine Hydrochloride

A derivative of narcotine, occurring in yellowish crystals, and called Stypticin (Merck), owing to its powerful styptic properties. It is given in 1/2 to 1 grain doses for uterine haemorrhage and as a uterine sedative; also administered subcu-taneously (1 to 3 grains) in urgent cases. Cotarnine phthalate, or Styptol, is similarly used; also for spermatorrhoea. It is supplied in tablets of 3/4 grain (Knoll).

Cotoin, the active principle of coto-bark, is a remedy for dysentery and similar intestinal disorders which are not sanguineous. Dose: 1 to 3 grains.